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1
Singh, Amrita, Manoj Kumar Jain und Subodh Wairya. „Novel Lossless Grounded and Floating Inductance Simulators Employing a Grounded Capacitor Based on CC-CFA“. Journal of Circuits, Systems and Computers 28, Nr. 06 (12.06.2019): 1950093. http://dx.doi.org/10.1142/s0218126619500932.
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Simulation of inductors has been a very popular area of analog circuit research and the alternative choice for realizing inductor-based circuits in integrated circuits. In this paper, lossless, grounded and floating inductor topologies using current-controlled-current-feedback amplifier (CC-CFA) with single grounded capacitor are presented. The proposed topologies can be tuned electronically by changing the biasing current of the CC-CFA. Two topologies for grounded inductor simulator employ two CC-CFA and one grounded capacitor. One topology for floating inductor simulator employs three CC-CFA and one grounded capacitor. The performance of the grounded and floating inductor simulators are demonstrated on resonant circuits. The theoretical analysis is verified by PSPICE simulation results.
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Muneeswaran, Dhamodaran, Jegadeesan Subramani, Thanapal Pandi, Navaneethan Chenniappan und Meenatchi Shanmugam. „Modelling of Different On-chip Inductors for Radio Frequency Integrated Circuits“. Proceedings of the Bulgarian Academy of Sciences 75, Nr. 10 (30.10.2022): 1491–98. http://dx.doi.org/10.7546/crabs.2022.10.12.
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This paper presents a typical frequency-dependent modelling of different on-chip inductors for RFICs design problems. Modern RF circuits often feature on-chip inductors required by modern circuit design. A comparison of different inductor geometrics includes a planar spiral inductor and novel multilayer inductors are analyzed. An electromagnetic model with fewer assumptions than empirical equations and higher efficiency than full-field solvers would be welcome. So would facile comparisons of different inductor structures. This paper describes recent work on the electromagnetic modelling of on-chip inductor structures, applied to the comparison of inductor geometries, including the traditional spiral inductor and a novel multilayer inductor. The electromagnetic modelling of the investigative model is also presented.
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Chen, Zhenwei, Wei Tang, Ze Li und Jiaqi Lan. „Design and Experimental Analysis of Charge Recovery for Piezoelectric Fan“. Actuators 11, Nr. 1 (10.01.2022): 20. http://dx.doi.org/10.3390/act11010020.
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The piezoelectric (PE) fan is widely adopted in the field of microelectronics cooling due to its advantages of high reliability and good heat dissipation characteristics. However, PE fans driven by conventional circuits suffer from plenty of energy loss. To save energy, we propose an inductor-based charge recovery method and apply it to the driving circuit for the PE fan. Two inductor-based driving circuits, a single inductor-based driving (SID) circuit and a double inductor-based driving (DID) circuit are compared. The SID circuit has a simple structure and a slightly higher energy-saving rate, while the DID circuit introduces no additional oscillations and is more stable. The experimental results show that when the supply voltage changes, both circuits have a relatively stable energy-saving rate, which is about 30% for the SID circuit and 28% for the DID circuit. Moreover, the proposed circuits enjoy the same driving capacity as the conventional circuit, and the driven fan has the same cooling performance.
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Schlachta, C., und M. Glesner. „Resonance circuits for adiabatic circuits“. Advances in Radio Science 1 (05.05.2003): 223–28. http://dx.doi.org/10.5194/ars-1-223-2003.
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Abstract. One of the possible techniques to reduces the power consumption in digital CMOS circuits is to slow down the charge transport. This slowdown can be achieved by introducing an inductor in the charging path. Additionally, the inductor can act as an energy storage element, conserving the energy that is normally dissipated during discharging. Together with the parasitic capacitances from the circuit a LCresonant circuit is formed.
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Dmitrikov, Vladimir F., Alexander Yu Petrochenko, Vyacheslav M. Isaev und Dmitriy V. Shushpanov. „Features of designing line radio interference filter in a wide frequency range, taking into account equivalent circuits for capacitors and inductors“. Physics of Wave Processes and Radio Systems 23, Nr. 4 (11.02.2021): 85–96. http://dx.doi.org/10.18469/1810-3189.2020.23.4.85-96.
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Based on the phenomenological equations describing the dynamic processes of magnetization of ferromagnets of inductors and polarization of capacitor dielectrics, taking into account complex frequency-dependent dielectric constants e(jw) of capacitor dielectrics and magnetic permeabilities m(jw) of inductor cores, equivalent electrical structural-parametric and capacitor replacement circuits were obtained. The connection of parasitic elements of equivalent electric circuits of capacitors and inductors with the electrophysical characteristics of the material of the dielectric of the capacitor and the inductor core, which determine their frequency properties, structure and parameters of the elements of the equivalent circuit, is established. The features of the design of line radio interference filter taking into account the parasitic parameters of the inductors and capacitors of line radio interference filter, found as a result of the synthesis of equivalent electric circuits of the inductors and capacitors in a wide frequency range of 150 kHz 30 MHz.
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Blaž, Nelu, Goran Mišković, Andrea Marić, Mirjana S. Damnjanović, Goran Radosavljević und Ljiljana Živanov. „Various Designs of Meander Inductor and their Influence on LC Resonant Displacement Sensor“. Key Engineering Materials 543 (März 2013): 235–38. http://dx.doi.org/10.4028/www.scientific.net/kem.543.235.
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This paper deals with various configurations of meander inductor and their influence on characteristics of passive LC displacement sensor. Passive techniques use LC resonator to measure the parameters of interest remotely without an on-board power supply. Developed LC sensor comprises a fixed meander inductor and a movable module of mender inductor - interdigital capacitor resonant circuit, thereby causing the sensor resonant frequency to be displacement - dependent. The inductor and sensor circuits have been fabricated in PCB technology. The main goal was to find the optimal position for measurement connection pads on fixed meander inductor PCB as well as position of connection line between mender inductor and interdigital capacitor on PCB board with LC circuit. Measurements were realized on Impedance Analyzer (HP4191A) in frequency range from 10 MHz to 30 MHz, with 100 kHz step for each configuration of meander inductor. As results of these measurements the best configuration and the best sensor sensitivity for both mender inductors was determined.
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Kamioka, J., R. Matsuda, R. Mizokuchi, J. Yoneda und T. Kodera. „Evaluation of a physically defined silicon quantum dot for design of matching circuit for RF reflectometry charge sensing“. AIP Advances 13, Nr. 3 (01.03.2023): 035219. http://dx.doi.org/10.1063/5.0141092.
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This paper reports on the extraction of the equivalent circuit model parameters of a physically defined silicon quantum dot at a cryogenic temperature and design of the impedance matching circuits to improve the performance of a charge sensor for radio-frequency (RF) reflectometry. The I-V characteristics and the S-parameters of the quantum dot device are measured around a Coulomb peak at 4.2 K. The measured results are modeled by an RC parallel circuit, and the model parameters for the quantum dot device were obtained. We consider three impedance matching circuits for RF reflectometry of a quantum dot: shunt capacitor-series inductor type, shunt inductor-series capacitor type, and shunt inductor-series inductor-type. We formulate and compare the sensitivity and bandwidth of RF reflectometry for the three types of circuits. The analysis should be useful for selecting the optimal matching circuit and the circuit parameters for given equivalent circuit parameters and working frequency. This procedure is demonstrated for a quantum dot with the characterized model circuit along with simulated performance. This design technique of matching circuit for RF reflectometry can be applied to any device that can be represented by an RC parallel circuit. These results will facilitate to realize fast semiconductor qubit readout in various quantum dot platforms.
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Xu, Wei, und Ning Cao. „A General Chaotic Circuit Design and Hardware Implementation via the Inductance Integrators“. Journal of Circuits, Systems and Computers 29, Nr. 10 (16.12.2019): 2050159. http://dx.doi.org/10.1142/s0218126620501595.
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This paper presents a scheme for the modified chaotic circuits based on inductance integration. In view of the fact that the DC resistance of an inductor in the circuit cannot be ignored, this way of constructing the circuits is provided that can eliminate its influence on the integral circuits. By means of cascading an inverting adder circuit and inductance integral circuit, the output signal of the integral circuit is fed back to the inverting adder circuit, and its additive term is artificially added to match the actual inductance integrated circuit to achieve integral circuit based on the actual inductor which can offset the effect of its DC resistance. In order to verify the generality of the design, the process of designing Lorenz chaotic circuit is given and its attractors can also be observed from the oscilloscope.
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Zargarani, Anahita, und S. Nima Mahmoodi. „Circuit Optimization for Enhancing the Output Power of a Piezoelectric Energy Harvester“. International Journal of Applied Science 1, Nr. 2 (29.08.2018): p6. http://dx.doi.org/10.30560/ijas.v1n2p6.
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In this paper, a new method is proposed for improving a piezoelectric energy harvester’s output power. A piezoelectric vibration energy harvester has an inherent internal capacitance. The new approach adopts inductance to reduce the reactance of the internal capacitance and enhance the output power. To show the practicality of this method, four electrical circuits are investigated numerically and experimentally for a piezoelectric beam energy harvester: Simple Resistive Load, Inductive Load, standard AC-DC, and Inductive AC-DC circuits. An Inductive Load circuit is built by adding an inductor to a Simple Resistive Load circuit, while an Inductive AC-DC circuit is built by adding an inductor to a standard AC-DC circuit. Experimental results indicate that the Inductive Load and the Inductive AC-DC circuits avail the Simple Resistive Load and standard AC-DC circuits respectively. The inductive AC-DC circuit shows a 6.7% increase in the output power compared to the standard AC-DC circuit.
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Santosa, I. E. „Permittivity Measurement Using the Resonance Circuits“. Journal of Physics: Conference Series 2019, Nr. 1 (01.10.2021): 012073. http://dx.doi.org/10.1088/1742-6596/2019/1/012073.
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Abstract A pair of LC circuits has been used to demonstrate the resonance condition of electromagnetic waves. The first circuit comprises of an inductor, a capacitor and a power supply; while the second pair employs an inductor, a variable capacitor and a neon bulb. The same inductance is applied in both circuits. The variable capacitor is a parallel plate capacitor. By varying the capacitance in the second circuit, we achieve the resonance condition as indicated by the lit neon bulb. By doing so, we observe the equal oscillation frequency in both, the first and second circuit. The condition is then used to obtain the permittivity of air to be (6.1±0.2) x10-11 F/m.
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Marinis, Thomas F., und Joseph W. Soucy. „Implementing Inductor Function with Vibrating Capacitor Structures“. Journal of Microelectronics and Electronic Packaging 11, Nr. 2 (01.04.2014): 57–63. http://dx.doi.org/10.4071/imaps.409.
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One of the most common uses of inductors is in filtering electrical signals to remove oscillations over selected frequency ranges. In this application, they are combined with capacitors to build resonant circuits to either block or dissipate signals at the unwanted frequencies. Similar, but larger current capacity filters are used to eliminate oscillatory ripple voltages from DC power supply outputs. Inductors are also essential components in buck converter type power supplies in which they store energy supplied by an oscillatory source to power a circuit, which generates a constant voltage. Inductors of various constructions have proven highly successful in all of these applications, but their performance is not ideal. For one, they dissipate the energy that is stored in them via a number of mechanisms. The conductivity of the wire comprising their windings is finite, so they suffer Ohmic losses. Their magnetic fields induce eddy currents within their cores and dissipative currents in surrounding circuit elements. Inductors also exhibit parasitic capacitance between their windings, which can give rise to dielectric losses. Because of these loss mechanisms, the quality factor of an inductor, which is its time average ratio of stored to dissipated energy, is typically less than a few hundred. By contrast, mechanical resonators, fabricated from single crystal silicon, attain quality factors that are orders of magnitude higher. Hence, mechanical filters could be made with sharper roll offs and smaller bandwidths than inductor based filters. They would also be more efficient in power supply applications. Inductors are also relatively heavy components, when compared with capacitors, resistors, and integrated circuits, due to their high content of copper and iron. A mechanical oscillator could be made significantly lighter than an inductor that is capable of storing the same amount of energy. We have been investigating mechanical oscillators that use flat beams, suspended at both ends above substrates with electrode patterns that form a capacitive dive to excite oscillations in the beam. We are examining a number of configuration variables, including beam geometry, mass distribution and excitation loading. We use finite element analysis and lumped parameter models to characterize beam deflection and MatLab scripts to predict performance in electrical circuits. We are also preparing to fabricate our first design for testing.
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Marinis, Thomas F., und Joseph W. Soucy. „Implementing Inductor Function with Vibrating Capacitor Structures“. International Symposium on Microelectronics 2013, Nr. 1 (01.01.2013): 000354–60. http://dx.doi.org/10.4071/isom-2013-tp53.
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One of the most common uses of inductors is in filtering electrical signals to remove oscillations over selected frequency ranges. In this application, they are combined with capacitors to build resonant circuits to either block or dissipate signals at the unwanted frequencies. Similar, but larger current capacity filters are used to eliminate oscillatory ripple voltages from DC power supply outputs. Inductors are also essential components in buck converter type power supplies in which they store energy supplied by an oscillatory source to power a circuit, which generates a constant voltage. Inductors of various constructions have proven highly successful in all of these applications, but their performance is not ideal. For one, they dissipate the energy that is stored in them via a number of mechanisms. The conductivity of the wire comprising their windings is finite, so they suffer Ohmic losses. Their magnetic fields induce eddy currents within their cores and dissipative currents in surrounding circuit elements. Inductors also exhibit parasitic capacitance between their windings, which can give rise to dielectric losses. Because of these loss mechanisms, the quality factor of an inductor, which is its time average ratio of stored to dissipated energy, is typically less than a few hundred. By contrast, mechanical resonators, fabricated from single crystal silicon, attain quality factors that are orders of magnitude higher. Hence, mechanical filters could be made with sharper roll offs and smaller bandwidths than inductor based filters. They would also be more efficient in power supply applications. Inductors are also relatively heavy components, when compared to capacitors, resistors and integrated circuits, due to their high content of copper and iron. A mechanical oscillator could be made significantly lighter than an inductor that is capable of storing the same amount of energy. We have been investigating mechanical oscillators that use flat beams, suspended at both ends above substrates with electrode patterns that form a capacitive dive to excite oscillations in the beam. We are examining a number of configuration variables, including beam geometry, mass distribution and excitation loading. We use finite element analysis and lumped parameter models to characterize beam deflection and MatLab scripts to predict performance in electrical circuits. We are also preparing to fabricate our first design for testing.
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Modzelewski, Juliusz, und Katarzyna Kulma. „An improved calculation method of inductance and capacitances in π1 circuits for resonant power amplifiers“. Archives of Electrical Engineering 61, Nr. 2 (01.06.2012): 221–37. http://dx.doi.org/10.2478/v10171-012-0019-x.
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An improved calculation method of inductance and capacitances in π1 circuits for resonant power amplifiers In the paper an improved method of calculation of the inductance and capacitances in the π1 circuit for Class A, AB, B, and C resonant power amplifiers is presented. This method is based on an assumption that the quality factor of the inductor is finite and the capacitors are lossless. The input parameters for calculations are the amplifier load resistance, the transistor load resistance, the quality factor of the inductor, the loaded quality factor of the designed circuit, and the operating frequency. The presented method allows reducing the required regulation range of π1 circuits elements in built resonant amplifiers as compared to the traditional calculation methods assuming lossless capacitors and inductor. This advantage is important, in particular, for long- and medium-wave transistor power amplifiers, where capacitances in π1 circuits are high comparing to typical trimming capacitors.
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Levshin, G. E. „WAYS TO IMPROVE INDUCTION CRUCIBLE FURNARES“. Izvestiya. Ferrous Metallurgy 62, Nr. 2 (30.03.2019): 97–102. http://dx.doi.org/10.17073/0368-0797-2019-2-97-102.
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Analysis of the main drawbacks caused by increased walls thickness of a lined crucible, presence of tubular copper single-layer inductor cooled from inside with standard water and absence or presence of core I-shaped magnetic circuits arranged around it forming a discrete ferromagnetic screen, was made for modern induction crucible furnaces. The first drawback is that a significant part of working electromagnetic flow Fwork is not used for effective heating, since it passes along the non-conductive lining of crucible, and not along the cage. Therefore, only 38.5 – 57.0 % of the flow Fwork is effectively used. The second drawback is increased cost and complexity of manufacturing of inductor coils from a special copper tube, which vibrate at twice the frequency, creating noise and weakening design of the furnace. Such inductors are characterized by reduced electrical efficiency and increased cost of preparation and cooling of conditioned water in systems that occupy an area several times greater than the area of furnace itself. The third drawback leads to the fact that a significant part of electromagnetic scattering flow of the Fconsupt does not participate in heating of charge and melt, but heats conductive elements of furnace, including surrounding magnetic inductor. Irrational use of total flow F, created by inductor, reduces its efficiency to almost 19 – 30 %, and the power factor cosφ to 0.03 – 0.10 and increases energy consumption. To reduce or eliminate disadvantages, three ways of improving these furnaces are proposed and justified: reducing thickness of crucible wall with its simultaneous hardening by installing a cylindrical shell between the crucible and the inductor, surrounding the inductor with an annular magnetic circuit and using a single or multiwire inductor instead of a tubular one. Combination of cylindrical shell, annular magnetic circuit, as well as the upper and lower plates of the furnace frame can form an annular closed cavity to accommodate wire inductor and circulating refrigerant, cooling the inductor and the magnetic circuit. As a result of the study, new design of induction crucible furnace with wire inductor and ring-type magnetic circuit developed at AltSTU is proposed, substantiated and patented. Based on experimental determination of effectiveness of the proposed structural elements, conclusion is made about the prospects for further research.
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Farzan Moghaddam, Ali, und Alex Van den Bossche. „An Efficient Equalizing Method for Lithium-Ion Batteries Based on Coupled Inductor Balancing“. Electronics 8, Nr. 2 (29.01.2019): 136. http://dx.doi.org/10.3390/electronics8020136.
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This article developed a coupled inductor balancing method to overcome cell voltage variation among cells in series, for Lithium Ion (Li-ion) batteries in Electrical Vehicles (EV). For an "eight cells in series" example, the developed balance circuit has four inductors, one magnetic circuit with one winding per two cells, and one control switch per cell, as compared to the traditional inductor-based equalizer that needs N-1 inductors and magnetic circuits for N number of cells and more switches. Therefore, ultimately, a more efficient, cost-effective circuit and low bill of materials (BOM) will be built up. All switches are logic-level N-Channel metal-oxide-semiconductor field-effect transistors (MOSFETs) and they are controlled by a pair of complementary signals in a synchronous trigger pattern. In the proposed topology, less components and fast equalization are achieved compared to the conventional battery management system (BMS) technique for electrical vehicles based on the inductor balancing method. This scheme is suitable for fast equalization due to the inductor-based balancing method. The inductors are made with a well-chosen winding ratio and all are coupled with one magnetic core with an air gap. Theoretical derivation of the proposed circuit was well-presented, and numerical simulation relevant to the electrochemical storage devices was conducted to show the validity of the proposed balance circuit. A complete balance circuit was built to verify that the proposed circuit could resolve imbalance problems which existed inside battery modules.
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Prakht, V. A., V. V. Goman und A. S. Paramonov. „Design Optimization of Secondary Element of Single-Sided Linear Induction Motors Using a Genetic Algorithm“. ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 64, Nr. 6 (06.12.2021): 505–16. http://dx.doi.org/10.21122/1029-7448-2021-64-6-505-516.
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The article focuses on the use of genetic algorithms for the design of linear induction motors. Comparison of genetic algorithm with classical methods in the context of electrical machines designing has been carried out. The results of solving an optimization problem for two designs are presented, viz. a laboratory linear induction electric motor based on a three-phase SL-5-100 inductor and a traction single-sided linear induction electric motor of an urban transport system. The optimality criterion included maximizing the power factor and efficiency, as well as the rigidity of the mechanical characteristic while ensuring a starting traction force of at least a set value. The results of optimization of such parameters of the secondary element as the width and thickness of the conductive strip as well as the thickness of the magnetic circuit are described. The relevance of the problem of optimizing the parameters of the secondary element with unchanged parameters of the inductor is due to the fact that the same inductor can be used to build various structures, while the secondary element is created for each specific application and integrated directly into the working body of the mechanism or is a driven product. To calculate the traction and energy characteristics of linear induction electric motors, an electromagnetic model based on detailed equivalent circuits was used, taking into account longitudinal and transverse edge effects and providing a calculation time for one set of parameters of about 1 s. In accordance with this model, the electric motor is reduced to a set of three detailed equivalent circuits: a magnetic circuit, primary and secondary electrical circuits. The result of the optimization of these electric motors was an increase in the efficiency by 1.6 and 1.4 %, respectively, an increase in the power factor by 0.9 and 0.2 %, and an increase in the rigidity of traction characteristics and starting traction force.
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Itoh, Makoto, und Leon O. Chua. „Dynamics of Memristor Circuits“. International Journal of Bifurcation and Chaos 24, Nr. 05 (Mai 2014): 1430015. http://dx.doi.org/10.1142/s0218127414300158.
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In this paper, we show that Hamilton's equations can be recast into the equations of dissipative memristor circuits. In these memristor circuits, the Hamiltonians can be obtained from the principles of conservation of "charge" and "flux", or the principles of conservation of "energy". Furthermore, the dynamics of memristor circuits can be recast into the dynamics of "ideal memristor" circuits. We also show that nonlinear capacitors are transformed into nonideal memristors if an exponential coordinate transformation is applied. Furthermore, we show that the zero-crossing phenomenon does not occur in some memristor circuits because the trajectories do not intersect the i = 0 axis. We next show that nonlinear circuits can be realized with fewer elements if we use memristors. For example, Van der Pol oscillator can be realized by only two elements: an inductor and a memristor. Chua's circuit can be realized by only three elements: an inductor, a capacitor, and a voltage-controlled memristor. Finally, we show an example of two-cell memristor CNNs. In this system, the neuron's activity depends partly on the supplied currents of the memristors.
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Ran, Manjie, Xiaozhong Liao, Da Lin und Ruocen Yang. „Analog Realization of Fractional-Order Capacitor and Inductor via the Caputo–Fabrizio Derivative“. Journal of Advanced Computational Intelligence and Intelligent Informatics 25, Nr. 3 (20.05.2021): 291–300. http://dx.doi.org/10.20965/jaciii.2021.p0291.
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Capacitors and inductors have been proven to exhibit fractional-order characteristics. Therefore, the establishment of fractional-order models for circuits containing such components is of great significance in practical circuit analysis. This study establishes the impedance models of fractional-order capacitors and inductors based on the Caputo–Fabrizio derivative and performs the analog realization of fractional-order electronic components. The mathematical models of fractional RC, RL, and RLC electrical circuits are deduced and verified via a comparison between the numerical simulation and the corresponding circuit simulation. The electrical characteristics of the fractional circuits are analyzed. This study not only enriches the models of fractional capacitors and inductors, but can also be applied to the description of circuit characteristics to obtain more accurate results.
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ITOH, MAKOTO, und LEON O. CHUA. „MEMRISTOR HAMILTONIAN CIRCUITS“. International Journal of Bifurcation and Chaos 21, Nr. 09 (September 2011): 2395–425. http://dx.doi.org/10.1142/s021812741103012x.
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We prove analytically that 2-element memristive circuits consisting of a passive linear inductor in parallel with a passive memristor, or an active memristive device, can be described explicitly by a Hamiltonian equation, whose solutions can be periodic or damped, and can be represented analytically by the constants of the motion along the circuit Hamiltonian. Generalizations to 3-element and 2N-element memristive Hamiltonian circuits are also presented where complex bifurcation phenomena including chaos, abound.
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ALPASLAN, HALIL, und ERKAN YUCE. „BANDWIDTH EXPANSION METHODS OF INDUCTANCE SIMULATOR CIRCUITS AND VOLTAGE-MODE BIQUADS“. Journal of Circuits, Systems and Computers 20, Nr. 03 (Mai 2011): 557–72. http://dx.doi.org/10.1142/s0218126611007451.
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In this paper, novel low and high frequency performance improvement techniques are proposed. High frequency performance improvement method is based on the single pole effect reduction/completely elimination by creating a corresponding zero while a low one is based on reduction/elimination of Z terminal parasitic resistors. Therefore, two grounded capacitance multipliers, three grounded inductor simulators, a floating inductor and a voltage-mode (VM) universal filter using second-generation current conveyors (CCIIs) are used to explain the developed methods. One of the grounded inductor simulators, floating simulated inductor and VM biquad are novel. Further, both of the new simulated inductors use a grounded capacitor; accordingly, they are suitable for IC fabrication. However, all the proposed circuits need a single matching condition. A number of simulations through PSPICE program and experimental tests are accomplished to demonstrate the workability, performance and effectiveness.
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Lin, Bor-Ren. „Analysis of a Series‑Parallel Resonant Converter for DC Microgrid Applications“. Processes 9, Nr. 3 (18.03.2021): 542. http://dx.doi.org/10.3390/pr9030542.
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An input-series output-parallel soft switching resonant circuit with balance input voltage and primary-side current is studied and implemented for direct current (DC) microgrid system applications. Two resonant circuits are connected with input-series and output-parallel structure to have the advantages of low voltage stresses on active devices and low current stresses on power diodes. A balance capacitor is adopted on high voltage side to balance two input capacitor voltages. The LLC (inductor–inductor–capacitor) resonant circuit cells are employed in the converter to have soft switching operation for power semiconductors. The magnetic coupling component is adopted on the primary-side to automatically realize current balance of the two resonant circuits. In the end, a laboratory hardware circuit is built and tested. Experiments demonstrate and prove the validity of the resonant converter.
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SHI, LING-FENG, HUI-LI GUAN, QIN-QIN LI und XIN-QUAN LAI. „A NOVEL CRM PFC CONTROL METHOD FOR REDUCING INDUCTOR“. Journal of Circuits, Systems and Computers 23, Nr. 03 (März 2014): 1450038. http://dx.doi.org/10.1142/s0218126614500388.
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A novel control method for the critical conduction mode (CRM) power factor correction (PFC) converter is presented, which reduces the size of the boost inductor in the system with wide input-voltage range and improves the efficiency of the system with low input voltage. By introducing the following boost circuit, the output voltage in the application circuit varies with the input root mean square (RMS) voltage to reduce the demand for the large size of the inductor and the efficiency of the system keeps high under the low input voltage. A novel CRM PFC control system with smaller size inductor and higher efficiency is achieved by applied the following boost method to the core control circuits. Experiment results show that the inductance value of the boost inductor is 430 μH using the presented PFC control system and 700 μH using the traditional PFC control system when the input voltage varies from 85 V to 265 V. The novel control method decreases the inductor's value at 38.2%, and the efficiency of the system improves at 1.62% under the input voltage of 85 V.
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Kebbati, Y., P. S. Allaume und Y. Bennani. „Memristor, Memcapacitor, Meminductor : Models and Experimental Circuit Emulators“. Engineering, Technology & Applied Science Research 12, Nr. 3 (06.06.2022): 8683–87. http://dx.doi.org/10.48084/etasr.4882.
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Before 1971, the number of passive electrical components was limited to three: resistor, capacitor, and inductor. In 1971, Pr. Chua predicted the existence of a fourth element, called memristor, since it corresponds to a resistor with memory behavior. Several years later, the concept of memory circuit was extended to capacitors and inductors. This paper proposes mathematical models for mem-elements, validated by Matlab and experimental circuit emulators for memcapacitor and meminductor. The experimental results show a good fit between theory, Ltspice simulations, and emulation circuits.
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Gan, Kwang Jow, Zheng Jie Jiang, Cher Shiung Tsai, Din Yuen Chan, Jian Syong Huang, Zhen Kai Kao und Wen Kuan Yeh. „Design of NDR-Based Oscillators Suitable for the Nano-Based BiCMOS Technique“. Applied Mechanics and Materials 328 (Juni 2013): 669–73. http://dx.doi.org/10.4028/www.scientific.net/amm.328.669.
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We present three oscillator designs using the negative-differential-resistance (NDR) circuit which is composed of several Si-based metal-oxide-semiconductor field-effect transistor (MOS) devices and one SiGe-based heterojunction bipolar transistor (HBT) devices. These oscillator circuits are composed of the NDR circuit, resistor, inductor, and capacitor. The oscillation frequencies are about several GHz based on the HSPICE simulation results. The circuits are designed using a standard 0.18 μm BiCMOS technique. Because our circuits are mainly made of a BiCMOS-NDR circuit that is different from a tradition NDR device made by a resonant tunneling diode with a quantum-well structure, we can utilize the nanobased BiCMOS process to implement these circuits by further improving the parameters.
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BÖHME, FRANK, und WOLFGANG SCHWARZ. „TRANSFORMATIONS OF CIRCUITS BELONGING TO CHUA'S CIRCUIT FAMILY INTO NONLINEAR FEEDBACK LOOPS MADE OF PASSIVE RC-FILTER AND ACTIVE MEMORYLESS NONLINEARITY“. Journal of Circuits, Systems and Computers 03, Nr. 02 (Juni 1993): 293–308. http://dx.doi.org/10.1142/s0218126693000216.
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This paper deals with the inductor-free realizations of the four known circuits (see Refs. 1, 2) belonging to Chua's circuit family by using a simple feedback system consisting of a linear passive RC-filter and a nonlinear amplifier. The basic approach and the design principles and the parameter ranges, where equivalent RC-circuits can be realized are given.
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Reaungepattanawiwat, Chalermpol, und Yutthana Kanthaphayao. „Voltage Multiplier Circuits with Coupled-Inductor Applied to a High Step-Up DC-DC Converter“. Applied Mechanics and Materials 781 (August 2015): 418–21. http://dx.doi.org/10.4028/www.scientific.net/amm.781.418.
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This paper presents a high voltage gain of a DC-DC converter. The proposed system consists of voltage multiplier circuits and a coupled inductor of a boost DC-DC converter. The input voltage of the voltage multiplier circuit is the induced voltage of inductor at a boost DC-DC converter. The field programmable gate array (FGPA) is used for generating the control signal of the proposed system. To verify the proposed circuit, an experiment was conducted from the prototype circuit. The proposed circuit can step-up the voltage with high voltage gain. Moreover, the voltage across the switch is very low.
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Kumar, Umesh, Sushil Kumar Shukla und Amiete. „Analytical Study of Inductor Simulation Circuits“. Active and Passive Electronic Components 13, Nr. 4 (1989): 211–27. http://dx.doi.org/10.1155/1989/39762.
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Suroso, Suroso, Daru Tri Nugroho und Toshihiko Noguchi. „A nine-level hybrid current source inverter using common-emitter topology and inductor-cell“. International Journal of Power Electronics and Drive Systems (IJPEDS) 10, Nr. 2 (01.06.2019): 852. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp852-859.
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<p>A different circuit structure of nine-level current source power inverter is presented and discussed in this manuscript. The proposed topology is based on the common-emitter inverter topology equipped with an inductor-cell circuit. The common-emitter inverter works as the main inverter circuits delivering a three-level AC current waveform. The inductor-cell circuit produces the intermediate output current levels for nine-level current output waveform. Proportional integral current controller was applied to regulate the current streaming thru the inductor-cell. Multi triangular carrier signals based sinusoidal pulse width modulation method was utilized to obtain a lower waveform distortion. The proposed nine-level inverter circuit was tested and examined. The test results verified that the new nine-level inverter circuit worked well producing a nine-level current waveform with less low-frequency harmonic components.</p>
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Yang, Ningning, Cheng Xu, Chaojun Wu, Rong Jia und Chongxin Liu. „Dynamic Behaviors and the Equivalent Realization of a Novel Fractional-Order Memristor-Based Chaotic Circuit“. Complexity 2018 (02.12.2018): 1–13. http://dx.doi.org/10.1155/2018/9467435.
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This paper proposed a novel fractional-order memristor-based chaotic circuit. A memristive diode bridge cascaded with a fractional-order RL filter constitutes the generalized fractional-order memristor. The mathematical model of the proposed fractional-order chaotic circuit is established by extending the nonlinear capacitor and inductor in the memristive chaotic circuit to the fractional order. Detailed theoretical analysis and numerical simulations are carried out on the dynamic behavior of the proposed circuit by investigating the stability of equilibrium points and the influence of circuit parameters on bifurcations. The results show that the order of the fractional-order circuit has a great influence on the dynamical behavior of the system. The system may exhibit complicated nonlinear dynamic behavior such as bifurcation and chaos with the change of the order. The equivalent circuits of the fractional-order inductor and capacitor are also given in the paper, and the parameters of the equivalent circuits are solved by an undetermined coefficient method. Circuit simulations of the equivalent fractional-order memristive chaotic circuit are carried out in order to validate the correctness of numerical simulations and the practicability of using the integer-order equivalent circuit to substitute the fractional-order element.
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Tellez, J. Rodriguez, N. T. Ali und B. Majeed. „Feasibility of Tunable Amplifier and Bandpass Filter for Mobile Handsets Using Active Inductor Circuits“. Active and Passive Electronic Components 25, Nr. 4 (2002): 307–19. http://dx.doi.org/10.1080/08827510214372.
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In this paper active inductor circuits are employed to assess their suitability for providing a tuning function in GaAs MMIC circuits. The specifications for a mobile handset amplifier and a bandpass filter operating from a 3 V supply rail are used as test vehicles. The design and simulation of the circuits employs a low-cost commercially available low pinch-off GaAs MESFET process. The suitability of active inductors for tuning in such applications considers issues such as frequency tuning range, noise, power consumption and stability.
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A. Mejbel, Ihsan, und Turki K. Hassan. „DESIGN AND SIMULATION OF HIGH GAIN SEPIC DC–DC CONVERTER“. Journal of Engineering and Sustainable Development 27, Nr. 1 (03.01.2023): 138–48. http://dx.doi.org/10.31272/jeasd.27.1.12.
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This paper proposes a new model of the converter, a single-ended primary-inductor converter (SEPIC) type with a high gain voltage for clean energy sources. The suggested model is established by combining the traditional SEPIC DC-DC converter with two different circuits. The first circuit is a split-inductor circuit that is made of three diodes and two inductors, while the second circuit consists of two capacitors and two diodes. The suggested SEPIC DC-DC converter achieves a high voltage gain of 7.5 times the supply voltage when the duty cycle value is kept at 0.5 with only a unique controlled switch. The gain of the proposed converter is greatly increased while the ripple of output voltage and the input current is decreased for higher values of the duty cycle. In addition, the decreased value of the input current ripple results in limited switching stress. The suggested converter is analyzed in detail for continuous conduction mode (CCM). A MATLAB/ Simulink program is used to confirm the analysis of the suggested converter.
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Pacurar, Claudia, Vasile Topa, Adina Giurgiuman, Calin Munteanu, Claudia Constantinescu, Marian Gliga und Sergiu Andreica. „High Frequency Analysis and Optimization of Planar Spiral Inductors Used in Microelectronic Circuits“. Electronics 10, Nr. 23 (23.11.2021): 2897. http://dx.doi.org/10.3390/electronics10232897.
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This paper deals with high frequency analysis of spiral inductors, used in microelectronics circuits, to optimize their configuration. Software developed, designed, and implemented by the authors for nano and micrometre spiral inductor high frequency analysis, named ABSIF, is presented in this paper. ABSIF determines the inductance, quality factor, and electrical parameters for square, hexagonal, octagonal, and circular spiral inductors and their configuration optimization for energy efficiency. ABSIF is a good tool for spiral inductor design optimization in high frequency applications and takes into account the imposed technological limits and/or the designers’ constraints. A set of spiral inductors are considered and analysed for high frequency values using ABSIF, and the results are presented in the paper. The validation of ABSIF was completed by comparing the results with those obtained using a similar commercial software, Sonnet LiteTM, which is dedicated to high frequency electromagnetic analysis.
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Zhang, Yuman, Mei Guo, Gang Dou, Yuxia Li und Guanrong Chen. „Oscillatory Circuits Built on Physical SBT Memristor“. International Journal of Bifurcation and Chaos 29, Nr. 07 (30.06.2019): 1950097. http://dx.doi.org/10.1142/s0218127419500974.
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The [Formula: see text] (SBT) nanometer film can be used as a physical memristive component. Three oscillatory circuits built on the physical SBT memristor are proposed in this paper, one is self-excited oscillatory circuit and two are forced oscillatory circuits. These three oscillatory circuits have simple structures with complex dynamics. The self-excited oscillatory circuit can generate steady periodic oscillations; the first forced oscillatory circuit can generate relatively complex quasi-periodic oscillations, while the second can generate more complex dynamics such as chaotic oscillations. The impacts of the circuit parameter and initial state values of the SBT memristor on the dynamical behaviors of the three oscillatory circuits are investigated via numerical simulations. It is found that the SBT memristor can be used to design various memristor-based circuits. Specifically, in a flux-controlled memristor-based circuit, if an inductor is in parallel with the memristor, the order of the circuit is one less than the number of energy storage elements in the circuit. The equilibrium point of the circuit is different from the typical line equilibrium for autonomous circuits. The initial state value of the memristor has no impact on the steady state of the circuit. The same phenomena are observed for a charge-controlled memristor-based circuit, when a capacitor is in series with the memristor.
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Konal, Mustafa, und Firat Kacar. „MOS Only Grounded Active Inductor Circuits and Their Filter Applications“. Journal of Circuits, Systems and Computers 26, Nr. 06 (05.03.2017): 1750098. http://dx.doi.org/10.1142/s0218126617500980.
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This paper presents two grounded MOS only active inductor circuits. Both circuits have only two MOS transistors and two biasing currents. Thus, the proposed active inductors provide small chip area, tunability, low power consumption with 150[Formula: see text][Formula: see text]W and 90[Formula: see text][Formula: see text]W, respectively. To analyze their performance, a second-order band-pass filter and a third-order high-pass filter structures are presented with low noise as 7.5[Formula: see text]nV/[Formula: see text] and 9.14[Formula: see text]nV/[Formula: see text], respectively. The designed active inductors and filters are simulated in 0.18[Formula: see text][Formula: see text]m CMOS process parameters using LTSPICE.
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Deane, J. H. B. „Modeling the dynamics of nonlinear inductor circuits“. IEEE Transactions on Magnetics 30, Nr. 5 (September 1994): 2795–801. http://dx.doi.org/10.1109/20.312521.
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Hu, Guobiao, Lihua Tang, Junrui Liang und Raj Das. „Modelling of a cantilevered energy harvester with partial piezoelectric coverage and shunted to practical interface circuits“. Journal of Intelligent Material Systems and Structures 30, Nr. 13 (19.05.2019): 1896–912. http://dx.doi.org/10.1177/1045389x19849269.
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This article presents a modelling methodology for a cantilevered energy harvester with partial piezoelectric coverage and shunted to practical power conditioning interface circuits. First, the distributed parameter model of the partially covered piezoelectric energy harvester is developed and the associated analytical solution is derived. Subsequently, the single-degree-of-freedom representation model is developed and the explicit expressions of equivalent lumped parameters are derived by taking the static deflection as the approximated fundamental vibration mode. Based on the comparison with the single-mode expression of the distributed parameter model, a correction factor is proposed to improve the accuracy of the single-degree-of-freedom model. The results of both the distributed parameter and the corrected single-degree-of-freedom models are compared. The accuracy of the corrected single-degree-of-freedom representation model is verified against the analytical and the finite element models. Finally, practical interface circuits including the standard energy harvesting circuit and the parallel synchronized switch harvesting on inductor circuit are considered. A modified equivalent impedance modelling method is proposed for the analysis of the standard energy harvesting and parallel synchronized switch harvesting on inductor circuits. The results of the modified equivalent impedance modelling method are verified against the existing method in the literature.
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Stojanovic, Goran, Ljiljana Zivanov und Mirjana Damnjanovic. „Optimal design of circular inductors“. Facta universitatis - series: Electronics and Energetics 18, Nr. 1 (2005): 57–70. http://dx.doi.org/10.2298/fuee0501057s.
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The scope of this work is to introduce a software tool for optimization of circular spiral inductors. It is based on compact model, where the physical behavior is described through analytical expressions in geometric programming (GP) form. This paper describes three significant innovations (a) optimization of circular inductor via GP, (b) new expressions for inductance and Q-factor in GP form, (c) globally optimal trade-off curves between maximum self-resonant frequency and inductance values or minimum inductor area and inductance values. The proposed optimization algorithm is flexible because the designers of RF integrated circuits can easily optimize the circular inductor for a desired performance.
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Sreelatha, Edara, Alagappan Pandian und Mohana Sundaram Kuppusamy. „A novel topology for single-inductor single input triple output DC-DC power converter“. International Journal of Power Electronics and Drive Systems (IJPEDS) 14, Nr. 1 (01.03.2023): 304. http://dx.doi.org/10.11591/ijpeds.v14.i1.pp304-310.
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<p class="Els-Abstract-text">A single input triple output (SITO) DC-DC power converter circuit derived from a single inductor boost converter is proposed in this paper. Like multi-level inverters, many electronic circuit applications need multiple DC output voltages. Using different power supply circuits increases the system cost, size, and weight. The multiple-input, multiple-output power conversion system integrates multiple sources and outputs and uses a single controller. The integrated operation results in simple structure, low cost, and size, making it suitable for different power conversions, including renewable sources. In this series, the proposed single-inductor single-input triple-output (SI-SITO) DC-DC power converter is designed to produce three independent DC output voltages and two dependent output voltages. The proposed circuit is derived from a conventional boost converter made up of a single inductor. The advantage of this proposed circuit is the use of minimum components and simple control strategies. The design and performance analysis is done using Mat Lab simulation. The experimental results show the benefits of the proposed circuit.</p>
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Palson, C. L., D. D. Krishna, B. R. Jose, J. Mathew und M. Ottavi. „Memristor Based Planar Tunable RF Circuits“. Journal of Circuits, Systems and Computers 28, Nr. 13 (11.02.2019): 1950225. http://dx.doi.org/10.1142/s0218126619502256.
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Memristors have been recently proposed as an alternative to incorporate switching along with traditional CMOS circuits. Adaptive impedance and frequency tuning are an essential and challenging aspect in communication system design. To enable both, a matching network based on switchable capacitors with fixed inductors is proposed in this paper where the switching is done by memristive switches. This paper analyzes the operation of memristors as a switch and a matching network based on memristors which adaptively tunes with impedance and frequency. With three capacitor banks of each 0.5 pF resolution and two fixed inductors, matching for antenna impedance ranging from 20 to 200[Formula: see text]Ohms and for frequencies ranging from 0.9 to 3.2[Formula: see text]GHz is reported. Thereafter, an adaptive planar band-pass filter is implemented on CMOS technology with two metal layers. This adaptive frequency tunable band-pass filter uses a [Formula: see text] network with resonator tanks in both arms that operates at 2.45 GHz. It is tunable from 2.8[Formula: see text]GHz to 7.625[Formula: see text]GHz range. This tunability is achieved using tunable spiral inductor based on memristive switches. The proposed filter layout is implemented and simulated in ANSYS Designer. The initialization and the programming circuitry to enable adaptive switching of the memristive devices has to be addressed. Since RF memristive devices are not commercially available, circuit level simulations are done as a proof of concept to validate the expected results.
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Moss, Terry L., und Yinchao Chen. „Mesh analysis for extracting the S-parameters of lumped element RF and microwave circuits“. International Journal of Electrical Engineering & Education 51, Nr. 4 (Oktober 2014): 330–39. http://dx.doi.org/10.7227/ijeee.0005.
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This paper demonstrates the applicability of basic mesh current circuit analysis techniques, usually learned in the first year of engineering studies, to lumped element RF circuits, which are usually taught with more sophisticated analysis techniques. As an example, the S-parameters of the 90° lumped element hybrid coupler is derived using the traditional mesh current analysis, and compared to that of the distributed micro-strip response. The distributed transmission line coupler is transformed into equivalent lumped element PI sections, and then combined for the resulting lumped element coupler. Mesh current analysis is then utilized to demonstrate the equivalence between the lumped element coupler and the micro-strip coupler as well as the ability to easily simulate the effects of finite inductor Q on the circuit's performance.
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Premkumar, M., und T. R. Sumithira. „Design and Implementation of New Topology for Nonisolated DC–DC Microconverter with Effective Clamping Circuit“. Journal of Circuits, Systems and Computers 28, Nr. 05 (Mai 2019): 1950082. http://dx.doi.org/10.1142/s0218126619500828.
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This paper presents nonisolated DC–DC converter which suits for solar photovoltaic (PV) applications. The DC–DC converter proposed in this paper utilizes coupled inductor, voltage boost capacitor and passive clamp circuit to achieve desired voltage gain and the passive clamp circuit will help the converter to accomplish high efficiency. To minimize the voltage spike/ringing across MOSFET drain-source and to recover the coupled inductor leakage energy, the RCD clamp circuit is used. The voltage lift capacitor along with the clamp circuit helps in increasing the voltage gain of the converter. The proposed converter offers low voltage stress on MOSFET and diode, low-coupled inductor turns ratio with low duty cycle. The converter is analyzed and simulated with PLECS standalone simulating environment for all aspects of the clamp circuit. The simulation results are compared with RCD and other clamping circuits to verify the performance of the proposed converter. The converter is also compared with active clamping to discuss the effectiveness of passive clamping circuit. To track the maximum power from the solar PV module, the conventional maximum power point tracking (MPPT) techniques are used. The prototype is designed and implemented for 150W and experimental results are verified.
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MURALI, K., M. LAKSHMANAN und L. O. CHUA. „BIFURCATION AND CHAOS IN THE SIMPLEST DISSIPATIVE NON-AUTONOMOUS CIRCUIT“. International Journal of Bifurcation and Chaos 04, Nr. 06 (Dezember 1994): 1511–24. http://dx.doi.org/10.1142/s0218127494001179.
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We present a detailed investigation of the bifurcation and chaos phenomenon associated with the simplest sinusoidally driven dissipative second-order circuit made up of three linear circuit elements and a Chua’s diode. Unlike other non-autonomous second-order chaotic circuits whose nonlinear element is a nonlinear capacitor/inductor, the Chua’s diode of this circuit is a nonlinear resistor, and is therefore simpler from a circuit theoretic point of view. The chaotic dynamics of this circuit is confirmed both by experiments and by computer simulation of the circuit model.
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Sai Charishma Pathala, Venkata, und V. Y. Jayasree Pappu. „Elimination of CM Noise from SMPS Circuit using EMI Filter“. International journal of electrical and computer engineering systems 14, Nr. 4 (26.04.2023): 465–71. http://dx.doi.org/10.32985/ijeces.14.4.10.
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The electronic devices are exposed to external electromagnetic signals that produce an unwanted signal called noise in the circuit, which causes electromagnetic interference [EMI] problems. It occurs in two modes: radiated mode and conducted mode. In the radiation mode, the shielding technique is used for radiation mode, in conduction mode filtering technique is used. The design of an EMI filter depends upon the type of noise generated by the Switched Mode Power supply circuit [SMPS]. The SMPS circuit used in this paper is a DC-DC power converter, the Boost converter is a step-up converter and Buck converter is step down converter are considered as equipment for generation of noise, the Line Impedance Stabilization Network [LISN]is used for generating the common output impedance to the power converters, the EMI filters are designed to eliminate noise generated by the circuits. There noise generated by this power converters is Common Mode [CM] noise and Differential Mode [DM] noise. The separation of noise from the equipment is done by using a noise separator. In this paper, CM noise generated by these power converters is eliminated by designing an EMI filter called an inductor filter and a PI filter. The comparison between the LC inductor filter and the PI filter for the boost and buck converters is observed. The PI filter has better performance characteristics when compared to the inductor filter for both SMPS circuits as per the Comité International Special des Perturbations Radioélectriques [CISPR] standards. This standard gives the conducted emission range for different electronic devices.
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Yuce, Erkan, und Shahram Minaei. „Commercially Available Active Device Based Grounded Inductor Simulator and Universal Filter with Improved Low Frequency Performances“. Journal of Circuits, Systems and Computers 26, Nr. 04 (06.12.2016): 1750052. http://dx.doi.org/10.1142/s0218126617500529.
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In this paper, a new grounded inductor simulator employing two current feedback operational amplifiers (CFOAs), three resistors and one grounded capacitor which is suitable for IC fabrication is proposed. Also, a new voltage-mode (VM) universal filter with three input and single output is given as application example of the grounded inductor simulator. The universal filter with low output impedance can be easily cascaded with other VM circuits. Both of the proposed circuits have the feature of improved low frequency performances, and can be easily constructed by two commercially available active devices such as AD844s. However, both inductor simulator and universal filter need a single passive component matching condition. Simulation and experimental test results are given to demonstrate the performance and workability of the proposed grounded inductor simulator and filter structure.
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Lee, Jungwoo, und Jinhyuk Kim. „Theoretical and Empirical Verification of Electrical Impedance Matching Method for High-Power Transducers“. Electronics 11, Nr. 2 (09.01.2022): 194. http://dx.doi.org/10.3390/electronics11020194.
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In our prior study, a systematic approach was used to devise Langevin transducers for high-power applications where the energy efficiency was not considered in the design criteria. In this paper, the impedance matching methods are thus proposed to evaluate what matching topology is appropriate for their use. Both the series inductor scheme and low pass filter composed of a series inductor and shunt capacitor are examined as matching circuits. According to MATLAB simulation, the resonance frequency is seen at 36.79 kHz due to a series L circuit, and its associated impedance is reduced by 70.45% from that of its non-matching condition. The measured resonance frequency is 36.77 kHz and the corresponding impedance is decreased by 59.52%. Furthermore, the acoustic pressure is measured to determine the effect of the matching circuit on the transducer’s actual behavior. The transducer with a series L circuit shows more efficient matching results, 2.28 kPa of positive acoustic pressure is emitted without matching and 3.35 kPa is emitted with a series L element, respectively. As a result, this study demonstrates how to evaluate the influence of matching circuits by using our customized approach rather than commercial SPICE programs, as well as how to experimentally verify the acoustic behavior of high-power Langevin transducers.
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Tanaka, Shunsuke, Tatsunori Nagashima, Yasunori Kobori, Kotaro Kaneya, Takahiro Sakai, Biswas Sumit Kumar, Nobukazu Takai und Haruo Kobayashi. „Design of Hysteresis Controlled Single-Inductor Multi-Output DC-DC Converter“. Key Engineering Materials 643 (Mai 2015): 69–77. http://dx.doi.org/10.4028/www.scientific.net/kem.643.69.
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This Paper Describes Application of the Hysteresis Control to the Single-Inductordual-Output (SIDO) Power Supply Circuit to Realize High Performance, Low Cost and Small Sizepower Supply Circuits. the Sidos can Realize Small Number of Inductors (hence Small Size Andlow Cost) in the System where Multiple Power Supplies are Required, but their Performance Isnot Very Good if Conventional SIDO Control Methods are Used. we Show with Simulation Andexperiment that the Hysteresis Control can Realize High Performance SIDO Converters.
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Vatavu, Marian, Vasile Nastasescu, Flaviu Turcu und Ioan Burda. „Voltage-Controlled Synthetic Inductors for Resonant Piezoelectric Shunt Damping: A Comparative Analysis“. Applied Sciences 9, Nr. 22 (08.11.2019): 4777. http://dx.doi.org/10.3390/app9224777.
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In this paper, the design, simulations, and experimental results related to new analog circuits for voltage controlled synthetic inductors (VCSI) are presented. The new circuits based on a generalized impedance converter (GIC) are proposed for adaptive resonant piezoelectric shunt damping. The VCSIs are implemented using (1) an analog multiplier and (2) an operational transconductance amplifier (OTA) as voltage-controlled resistor. The simulation and experimental results for the new proposed VCSIs are presented and a comparative analysis follows. The proposed VCSIs work in a stable manner in parallel with negative impedance converters (NIC) to enhance structural damping in resonant piezoelectric resistive-inductive shunt applications. The behavior of the synthetic inductor is identical to a real inductor only in a specific frequency range and this situation can explain the reported spreading performance in the literature for resonant piezoelectric shunt damping. The simulation results are validated by a group of experimental investigations that confirm the improved stability and linearity of the new circuits proposed as VCSIs. Experimental results show that the VCSI based on an analog multiplier have an enhanced linearity in comparison with the OTA version in a limited voltage control range.
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LAI, Y. M., C. K. TSE und P. MEHTA. „A COMPUTER METHOD FOR THE FORMULATION OF AVERAGED MODELS FOR DC/DC POWER CONVERTER CIRCUITS“. Journal of Circuits, Systems and Computers 05, Nr. 03 (September 1995): 373–91. http://dx.doi.org/10.1142/s0218126695000230.
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A computer method for deriving averaged circuit models for a class of power converter circuits is proposed. The proposed method is applicable to any dc/dc converter circuit whose switching frequency is much greater than the natural frequency of each constituent circuit topology. The method starts with decomposing the original circuit into two multiport sub-circuits. One contains the "fast" part, called the Minimum Separable Switching Configuration (MISSCO), and the other contains the remaining "slow" part of the circuit. A hybrid matrix that relates the port voltages and currents of the MISSCO to these constant sources is determined for each switching cycle. By applying one-cycle averaging operation to the hybrid matrices, the low frequency averaged model of the MISSCO is derived. This averaged model can then be combined with the rest of the circuit to form a complete equivalent circuit. For brevity we demonstrate the method in this paper for DC/DC converter circuits in the absence of parasitics. To illustrate the proposed method, the Ćuk converter is considered and its averaged model is derived for the discontinuous inductor-current mode of operation.
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Jakodiya, Shailesh, Ram Gurjar und Radhe Gamad. „Active inductor based low phase noise voltage controlled oscillator“. Facta universitatis - series: Electronics and Energetics 35, Nr. 1 (2022): 107–20. http://dx.doi.org/10.2298/fuee2201107j.
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This paper proposed a fully MOS-based voltage-controlled oscillator (VCO) with tuning range and low phase noise, replacing the most often used NMOS-based inductor-capacitor tank arranged in cross-coupled topology with a high-Q active inductor. This study mainly focuses on VCO design using a MOS-based active inductor and is implemented and verified using UMC 180nm CMOS technology. The proposed VCO is resistorless and consists of an active inductor, two MOS capacitors, and the buffer circuits. The fundamental principle of this MOS-based VCO concept is to use MOS based inductor to replace the passive inductor, which is an active inductor that gives less area and low power usage. At 1 MHz frequency offset, the phase noise achieved by this proposed configuration is -102.78dBc/Hz. In the proposed VCO architecture, the frequency tuning range is 0.5GHz to 1.7GHz. This VCO design can accomplish this acceptable tuning range by altering the regulating voltage from 0.7V to 1.8V. This suggested architecture of proposed VCO design has the power consumption of 9mW with a 1.8V supply voltage. The suggested VCO has been shown to be a good fit for low-power RF circuit applications while preserving acceptable performance metrics.
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Fetisov, Leonid Yu, Dmitry V. Chashin und Yuri K. Fetisov. „Controllable Inductors and Transformers Based On Ferromagnet-Piezoelectric Heterostructuresformers Based On Ferromagnet-Piezoelectric Heterostructures“. Radioelectronics. Nanosystems. Information Technologies. 13, Nr. 1 (27.03.2021): 27–38. http://dx.doi.org/10.17725/rensit.2021.13.027.
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The elements of electrical circuits, which inductance L can be tuned electrically (the so-called "inductors"), and transforemers are used in modern electronics, radio engineering and low-power energy for galvanic isolation of circuits and converting voltage amplitudes. In this work, new devices of this type have been manufactured and investigated, using the magnetoelectric effect in ferromagnetic-piezoelectric heterostructures. The inductance of the manufactured inductor is tuned by 400% by a control electric field of up to 10 kV/cm applied to the piezoelectric layer of the structure, and by 1000% by an external magnetic field of up to 10 Oe, acting on the structure. The transformer operates in the range of input voltages of 0-8 V, has a power transfer coefficient of 30% and a voltage transformation ratio of 0-14, tunable by a control magnetic field of up to 80 Oe. Methods for calculating the characteristics of magnetoelectric inductor and transformer are described.