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Artykuły w czasopismach na temat „Voltage transfer ratio”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Baranov, Pavel F., Valeriy N. Borikov, and Edvard I. Tsimbalist. "Instrument for Measurement of Transfer Ratio Voltage Transformers." Applied Mechanics and Materials 799-800 (October 2015): 1325–29. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.1325.

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The paper presents the instrument for measurement of transfer ratio voltage transformers in the frequency range. The instrument distinctive feature is measuring of small differential signal of the voltages with sensitivity 2 nV against the background of large common-mode signal. The instrument features, its technical and metrological parameters are also considered.

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2

Raheel, Muzzammel, and Tahir Umair. "Maximization of Transfer Ratio and Minimization of Harmonics in Three Phase AC/AC Matrix Converter." British Journal of Applied Science & Technology 21, no. 2 (2017): 1–20. https://doi.org/10.9734/BJAST/2017/33416.

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Energy saving and different working voltage applications are widely employing matrix converters. Matrix converters are used to convert three phase AC input voltages to three phase AC output voltages of required magnitude and frequency. Pulse width modulation is a technique used for converting three phase AC input to three phase AC output. In this research paper, pulse width modulation based matrix converter will be designed to acquire voltage of desired magnitude and frequency. Voltage transfer ratio will be maximized in this technique so that any desired voltage magnitude could be achieved. S

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3

Zhou, Jing, Yuqing Gao, Xiaoyan Huang, Sideng Hu, and Youtong Fang. "Voltage transfer ratio analysis for multi‐receiver resonant power transfer systems." IET Power Electronics 9, no. 15 (2016): 2795–802. http://dx.doi.org/10.1049/iet-pel.2015.0807.

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Zhou, Feng, Min Lei, Xiao Dong Yin, and Shu Han Zhang. "Measure Characteristic of UHV Power Frequency Voltage Ratio Standard." Advanced Materials Research 354-355 (October 2011): 1210–15. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.1210.

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In order to meet the urgent needs of voltage measurement traceability and transfer in the construction of ultra-high voltage power grid, 1000kV series standard voltage transformer is developed as the standard instrument, and then its measurement characteristics is tested. According to the theory and construction of the series power frequency voltage ratio standard, semi-insulating transformer voltage summation is proposed to make the voltage ratio measurement of SSTV whose accuracy can reach the 0.02 level trace to the source of national power frequency ratio standard of 500kV successfully. Th

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5

Zhou, Jing, Jiacheng Wang, Pengzhi Yao, et al. "Design and Optimization of a Wireless Power Transfer System with a High Voltage Transfer Ratio." Electronics 11, no. 14 (2022): 2115. http://dx.doi.org/10.3390/electronics11142115.

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With the development of the logistics industry, low-voltage systems, such as intelligent logistics vehicles, have also started to propose application scenarios for wireless power transfer systems. As most logistics vehicles use lithium batteries for energy supply, the wireless charging system has to adapt to the charging characteristic curve of lithium batteries. In this paper, a dual-transmitter single-receiver compound resonant compensation topology with a high voltage ratio is proposed, and a corresponding magnetic coupler is designed and optimized through finite element analysis, which gua

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6

Sun, Jin, Lei Zhang, You Min Wang, and Jun Chao Zhang. "An Improved Space Vector Modulation Method of Matrix Converter." Applied Mechanics and Materials 389 (August 2013): 796–801. http://dx.doi.org/10.4028/www.scientific.net/amm.389.796.

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Based on study of space vector modulation, cca novel over-modulation strategy of matrix converter is proposed for the problem of low voltage transfer ratio of matrix converter. According to the relation of the voltage space vector trace and hexagon trace vector, the control level is divided into linear modulation level and over-modulation level. The over modulation strategy is achieved by transforming the voltage modulation coefficient. The simulation results demonstrate that the voltage transfer ratio can be up to 0.955.

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7

Sreelatha, Edara, A. Pandian, Ch Rami Reddy, et al. "An efficient high-gain bidirectional interleaved boost converter for PV integration to DC microgrid." PLOS ONE 19, no. 5 (2024): e0301522. http://dx.doi.org/10.1371/journal.pone.0301522.

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The design of a power electronic interface for high voltage difference DC buses is a key aspect in DC microgrid applications. A multi-port non isolated interleaved high-voltage gain bidirectional converter, which facilitates bidirectional power transfer and islanded operation in a DC microgrid, is presented in this paper. The forward high-voltage transfer ratio is achieved using a voltage multiplier circuit, and the high-gain step-down power conversion is performed using a resonant power module. A novel power transfer selection algorithm is proposed to control power flow among the interfaces o

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8

Li, Danyun, Quntai Shen, Zhentao Liu, and Fang Liu. "Hybrid Modulation Strategy for Two-Stage Matrix Converter and its Application in Vector Control of Doubly Fed Induction Generator." Journal of Advanced Computational Intelligence and Intelligent Informatics 20, no. 1 (2016): 171–80. http://dx.doi.org/10.20965/jaciii.2016.p0171.

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A hybrid modulation strategy (HMS) for a two-stage matrix converter (TSMC) is presented in this paper. According to the variation of voltage transfer ratio, different combinations of modulation modes for rectifier-side converter (RSC) and inverter-side converter (ISC) of TSMC are adopted. Two different current space vector modulation methods are used for RSC to obtain maximum and minor DC voltages. The power loss of TSMC is reduced based on the minor DC voltage. In addition to the linear space vector modulation for ISC, an overmodulation method is presented in order to increase the voltage tra

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9

Khan, Muhammad Bilawal, Hassan Saif, and Yoonmyung Lee. "A Piezoelectric Harvesting Interface with Capacitive Partial Electric Charge Extraction for Energy Harvesting from Irregular High-Voltage Input." Energies 13, no. 8 (2020): 1939. http://dx.doi.org/10.3390/en13081939.

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A fully integrated piezoelectric energy harvesting interface is proposed for harvesting energy from irregular human motion. To handle irregular pulse inputs generated by the piezoelectric transducer (PZT), the proposed harvesting interface includes a wake-up controller that activates the harvesting interface only when human motion is detected and deformation is applied on the piezoelectric material, thereby keeping static power loss low. The PZT output voltage is increased to its peak voltage by removing any type of external load capacitance seen by the PZT during its deformation. Once the pea

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10

Xia, Changliang, Shanhu Li, Yan Yan, and Tingna Shi. "Research on Linear Output Voltage Transfer Ratio for Ultrasparse Matrix Converter." IEEE Transactions on Power Electronics 31, no. 3 (2016): 1811–15. http://dx.doi.org/10.1109/tpel.2015.2428294.

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11

Jie Chang, T. Sun, and Anhua Wang. "Highly compact AC-AC converter achieving a high voltage transfer ratio." IEEE Transactions on Industrial Electronics 49, no. 2 (2002): 345–52. http://dx.doi.org/10.1109/41.993267.

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12

He, Mei Sheng, Jian Lin Zhu, Rong Zheng, Wei Ming Chen, and Yao Feng Chen. "A Study of Topology Based on Matrix Rectifier and AC Chopper Principle." Advanced Materials Research 354-355 (October 2011): 1353–58. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.1353.

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A new frequency conversion device topology based on matrix rectifier and AC chopper called MCAC） is proposed, which is referred as AC chopper matrix converters. First, the basic configuration of these new topologies and the fundamental principle are introduced. Then, the validity and feasibility of the new topologies are tested by digital simulation and prototype experiments. The results indicate that the output voltage transfer ratio can be larger than 1.0, the output voltage waveform is very close to standard sine wave and the harmonic contents increase slightly, overcoming the drawbacks of

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13

Isah, Huzaifa, and Mutari Hajara Ali. "A modified sepic DC-DC converter for higher energy step-up conversion with fast response time based photovoltaic (PV) applications." Dutse Journal of Pure and Applied Sciences 10, no. 4c (2025): 287–95. https://doi.org/10.4314/dujopas.v10i4c.26.

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A single-ended primary inductor converter (SEPIC) has been modified in this work. The modification involves addition of some few components to the traditional SEPIC topology. The additional components are filter capacitor and a zener diode. The modification was done in such a way that the filter capacitor will receive the loss energy from opposite terminal of the circuit, filter it and deliver it to the zener diode. The benefits of the new topology are; higher voltage transfer ratio, less time delay and low duty ratio. Following the realization of the new topology, a prototype-based topology w

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14

Huang, Zijin, Leming Xiao, and Zimeng Fang. "Voltage Difference Envelope to the Control Simulating of Connection Frequency of Seamless Shoring." Journal of Physics: Conference Series 2418, no. 1 (2023): 012038. http://dx.doi.org/10.1088/1742-6596/2418/1/012038.

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Abstract Through the intelligent control of single chip microcomputer and Hall sensor detection technology and signal transmission technology, the frequency, voltage and voltage phase of the shore power and the ship power are detected to form the lowest point of voltage difference envelope, and the seamless connection of the shore power and the ship power is controlled. The load transfer control between the shore power and the ship power realizes the ideal synchronous control of grid-connected closing and load transfer by establishing the ratio control of frequency difference between the shore

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15

Li, Shengqing, Shi Yan, Jian Zheng та Heng Zhang. "A New Type of Super-Sparse Matrix Converter with Γ Source and Its Characteristics Analysis". Journal of Physics: Conference Series 2136, № 1 (2021): 012028. http://dx.doi.org/10.1088/1742-6596/2136/1/012028.

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Abstract To solve the problem of low voltage transmission in ultra sparse matrix converter (USMC), a novel ultra sparse matrix converter (USMC) is proposed. The new USMC topology contains of a Γ source boost circuit in the DC link. By increasing the output voltage of DC link, the inverter stage can output higher voltage, thus widening the range of voltage transmission ratio. Furthermore, combined with the SVPWM modulation strategy, the voltage transfer ratio of the new USMC topology is derived, which lays a theoretical foundation for the application of USMC. Finally, Matlab / Simulink simulati

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16

Tran, Quoc-Hoan, Huu-Cong Vu, and Huu-Nhan Nguyen. "Multimode space-vector overmodulation technique for enhancing voltage transfer ratio in matrix converters." Journal of Measurement, Control, and Automation 29, no. 1 (2025): 26–32. https://doi.org/10.64032/mca.v29i1.253.

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The space-vector modulation (SVM) method for matrix converters (MCs) inherently limits the voltage transfer ratio (VTR) to 0.866 in the linear modulation region, which constrains the broader application of MCs. This paper presents a detailed investigation into an overmodulation technique aimed at enhancing the VTR of MCs. The proposed method integrates the principles of inscribed circle and hexagon vectors, as well as hexagon and basic vectors, to extend the modulation range. Explicit equations for calculating the duty cycles of active and zero vectors are derived to achieve improved VTR. The

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17

Wan, Heng, Jia Huang, and Yuewei Pan. "A Study of “Pump Type” Matrix Converter with High Voltage Transfer Ratio." Energy Procedia 12 (2011): 1057–67. http://dx.doi.org/10.1016/j.egypro.2011.10.138.

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18

Gorsky, A. N., and I. I. Plotnikov. "Conditions for distortion-free voltage transfer in the transformer." E3S Web of Conferences 460 (2023): 06037. http://dx.doi.org/10.1051/e3sconf/202346006037.

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The optimal design of low-power transformers, sonic and ultrasonic transformers, pulse transformers, differential transformers, etc. requires an in-depth study of their theory and design calculation. In this article, the influence of transformer parameters on the voltage transfer ratio is discussed, and recommendations are given for the selection of values of these parameters to reduce possible distortions. The calculation methods are illustrated by an example.

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19

Yanarateş, Cağfer, and Aytaç Altan. "Mitigating Duty Cycle Limitation and Maximizing DC Voltage Gain in Switch Mode Power Supplies Utilizing Tapped-Inductor Topology: A Case Study with Buck Converter Analysis." Balkan Journal of Electrical and Computer Engineering 12, no. 4 (2025): 349–56. https://doi.org/10.17694/bajece.1524034.

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This paper presents a comparative analysis of tapped inductor (TI) buck converters versus conventional buck converter topologies, highlighting the advantages of TI buck converters. The primary motivations for using TI DC-DC converters in step-down applications, such as battery charging and photovoltaic emulator design, include significant input-to-output voltage differences resulting in low converter duty cycles, favorable peak-to-average current ratios, and overall conversion efficiency. In conventional buck converters, the DC voltage gain is determined solely by the duty cycle, leading to li

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20

Wang, Qi, Shuren Song, Wei Wang, Jia Zhou, and Antoine Riaud. "On the Dynamic Stability of Gold Electrodes Exposed to Alternative Voltages in Microfluidic Systems." Journal of The Electrochemical Society 169, no. 3 (2022): 031504. http://dx.doi.org/10.1149/1945-7111/ac580b.

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While gold is a stable metal in water, it is not uncommon for microfluidic experimenters using biologically-relevant fluids such as phosphate-buffered saline (PBS) to witness their precious gold electrodes quickly vanish from the microchannel once the voltage exceeds a few volts. This stability issue concerns multiple fields where high voltage provides superior actuator or sensor performance, such as resistive pulse sensing (RPS), electroosmosis, electrowetting and so on. One solution to protect metallic electrodes is using alternative voltages (AV) as opposed to continuous voltages. After rec

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21

Jing, Mingchen, Yihui Xia, and Bin Zhang. "Research on Two Improved High–Voltage–Transfer–Ratio Space–Vector Pulse–Width–Modulation Strategies Applied to Five–Phase Inverter." Electronics 13, no. 8 (2024): 1546. http://dx.doi.org/10.3390/electronics13081546.

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Considering that the defects of traditional nearest–two–vector SVPWM (NTV–SVPWM) have a low voltage transfer ratio (VTR) and those of nearest–four–vector SVPWM (NFV–SVPWM) have a high output current harmonic, two improved space–voltage pulse–width–modulation (SVPWM) strategies are proposed in this paper, based on analyzing the harmonic characteristics of traditional NTV–SVPWM and NFV–SVPWM. The first strategy is to synthesize the referenced voltage vector according to the different weight factors by NTV–SVPWM and NFV–SVPWM. The second strategy is to synthesize the referenced voltage vector acc

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22

Szczepankowski, Pawel, Natalia Strzelecka, and Enrique Romero-Cadaval. "A New Approach to the PWM Modulation for the Multiphase Matrix Converters Supplying Loads with Open-End Winding." Energies 14, no. 2 (2021): 466. http://dx.doi.org/10.3390/en14020466.

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This article presents three variants of the Pulse Width Modulation (PWM) for the Double Square Multiphase type Conventional Matrix Converters (DSM-CMC) supplying loads with the open-end winding. The first variant of PWM offers the ability to obtain zero value of the common-mode voltage at the load’s terminals and applies only six switches within the modulation period. The second proposal archives for less Total Harmonic Distortion (THD) of the generated load voltage. The third variant of modulation concerns maximizing the voltage transfer ratio, minimizing the number of switching, and the comm

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23

Jing, Dalei, and Jian Song. "Numerical Studies on the Thermal Performances of Electroosmotic Flow in Y-Shaped Microchannel Heat Sink." Coatings 10, no. 4 (2020): 380. http://dx.doi.org/10.3390/coatings10040380.

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This paper numerically studies the thermal performances of electroosmotic flow (EOF) in a symmetric Y-shaped microchannel heat sink (MCHS) having a constant total channel surface area, that is, constant convective heat transfer area. It is found that the average convective heat transfer coefficient of EOF increases with the increasing driven voltage, which is attributed to the increase of EOF flowrate with the increasing driven voltage. However, the maximum MCHS temperature shows an increasing after decreasing trend with the driven voltage owing to the dramatically increasing Joule heating whe

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24

Abdul Shukor, Fairul Azhar, Ahmed Mohammed Salem Ahmed Alhattami, Nur Ashikin Mohd Nasir, and Chockalingam Aravind Vaithilingam. "Performance analysis of wireless power transfer using series-to-series topology." Bulletin of Electrical Engineering and Informatics 12, no. 4 (2023): 2032–40. http://dx.doi.org/10.11591/beei.v12i4.4834.

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Wireless power transfer (WPT) is a technology used to transmit power using air as it medium of transfer. The function of the WPT is similar to a transformer. The power provided on the primary side will be transferred through air to the secondary side. The performance of the WPT is crucially depends on the air gap length, 𝛿 that separates primary and secondary side. In this paper discusses the performance of WPT using series-to-series topology. The performance of the WPT was estimated using finite element analysis (FEA). During the study, focus was given to effect of turn ratio, a, air gap leng

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25

Abdul Shukor, Fairul Azhar, Ahmed Mohammed Salem Ahmed Alhattami, Nur Ashikin Mohd Nasir, and Chockalingam Aravind Vaithilingam. "Performance analysis of wireless power transfer using series-to-series topology." Bulletin of Electrical Engineering and Informatics 12, no. 4 (2023): 2032–40. http://dx.doi.org/10.11591/eei.v12i4.4834.

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Wireless power transfer (WPT) is a technology used to transmit power using air as it medium of transfer. The function of the WPT is similar to a transformer. The power provided on the primary side will be transferred through air to the secondary side. The performance of the WPT is crucially depends on the air gap length, 𝛿 that separates primary and secondary side. In this paper discusses the performance of WPT using series-to-series topology. The performance of the WPT was estimated using finite element analysis (FEA). During the study, focus was given to effect of turn ratio, a, air gap leng

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26

Fetisov, Leonid Yu, Dmitry V. Chashin, and Yuri K. Fetisov. "Controllable Inductors and Transformers Based On Ferromagnet-Piezoelectric Heterostructuresformers Based On Ferromagnet-Piezoelectric Heterostructures." Radioelectronics. Nanosystems. Information Technologies. 13, no. 1 (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 1

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27

Fan, Yuanshuang, Qiurui Chen, Sihan Wu, Jing Xiao, and Zhihui Wang. "A Bidirectional Simultaneous Wireless Power and Data Transfer System with Non-Contact Slip Ring." Electronics 13, no. 20 (2024): 3974. http://dx.doi.org/10.3390/electronics13203974.

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A non-contact slip ring is proposed in this paper. The bidirectional simultaneous wireless power and data transfer (BD-SWPDT) technology is utilized to transfer power and data bidirectionally. A bidirectional constant-voltage LC hybrid compensation topology is proposed, which utilizes the LC series parallel structure to have different equivalent models at different frequencies. By using different operating frequencies for forward and reverse power transfer, the system’s forward and reverse transfer can be equivalent to different constant-voltage output compensation topologies. The resonant par

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28

Шайхитдинов, Р. З., та Т. И. Шарипов. "Динамика массопереноса жидкости в водном мостике". Письма в журнал технической физики 48, № 11 (2022): 37. http://dx.doi.org/10.21883/pjtf.2022.11.52612.19161.

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The paper presents experimental results of the dynamics of mass transfer through a water bridge arising between two dielectric cups with distilled water under the action of a constant high-voltage voltage between cylindrical electrodes. It is established that, depending on the ratio of the electrode diameters, the total fluid flow in the water bridge can be directed both to the cathode and to the anode.It is shown that the inversion of the direction of mass transfer of liquid through the bridge is due to the redistribution of volume charges.

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Xia, Yihui, Mingchen Jing, and Yuanzheng Ma. "A Space Vector Modulation Strategy for Improving Voltage Transfer Ratio of Multi-Phase Inverter." Electronics 13, no. 10 (2024): 1907. http://dx.doi.org/10.3390/electronics13101907.

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In the five-phase-inverter adjustable speed system, a five-phase two-level inverter usually adopts the nearest-two vector SVPWM (NTV-SVPWM) or the nearest-four vector SVPWM (NFV-SVPWM). The former one has a high-output-current harmonic, which increases the power losses, while the latter one has a low harmonic, but its sinusoidal voltage transfer ratio (VTR) is 0.812, which decreases load capacity. To improve the loading capacity and decrease the power losses of the five-phase-inverter adjustable speed system, a new space vector over-modulation method based on multi-vector weighting is proposed

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Lian, Han. "The State Monitoring Method of Electronic Voltage Transformer Based on L-M Algorithm." Journal of Advanced Computational Intelligence and Intelligent Informatics 23, no. 3 (2019): 385–89. http://dx.doi.org/10.20965/jaciii.2019.p0385.

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In the traditional method of monitoring the state of electronic voltage transformer, there are problems of large monitoring error and weak robustness. Therefore, a new state monitoring method of electronic voltage transformer based on L-M algorithm is proposed. The relationship between input voltage and output voltage of capacitor voltage divider in electronic voltage transformer is obtained by using Laplasse transform. The transfer function model of electronic voltage transformer is constructed based on the relationship result and L-M algorithm. The transfer function model is used to analyze

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31

Schell, Frederic, Richard Chukwudi Okafor, Tobias Steege, et al. "Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks." Micromachines 14, no. 9 (2023): 1730. http://dx.doi.org/10.3390/mi14091730.

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With the increasing processing power of micro-electronic components and increasing spatial limitations, ensuring sufficient heat dissipation has become a crucial task. This work presents a microscopic approach to increasing the surface area through periodic surface structures. Microstructures with a periodic distance of 8.5 µm are fabricated via Direct Laser Interference Patterning (DLIP) on stainless steel plates with a nanosecond-pulsed infrared laser and are characterized by their developed interfacial area ratio. The optimal structuring parameters for increasing the surface area were inves

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32

Li, Quanhui, Xinyu Yin, Fangang Meng, Xiao He, Gaojie Wang, and Changxing Guo. "Hybrid Harmonic Suppression Method at DC Link of Series-Connected 18-Pulse Rectifier." Applied Sciences 12, no. 11 (2022): 5544. http://dx.doi.org/10.3390/app12115544.

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To suppress the harmonics of series-connected 18-pulse rectifier, a hybrid harmonic suppression method is proposed in this paper. According to the structure of the converter and the KVL, the injection voltages are expressed. According to the injection voltages, the relation between the input voltage THD and the injection transformer turn ratio is obtained. Based on the relationship, when the THD of the input voltage researches the lowest value, the optimal injection transformer turn ratio is determined. Testing result shows that after using the proposed reduction method, the input side THD val

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33

Tang, Hsien-Chung, Chun-Hao Chen, Edward-Yi Chang, Da-Jeng Yao, Wei-Hua Chieng, and Jun-Ying He. "A Long-Range, High-Efficiency Resonant Wireless Power Transfer via Imaginary Turn Ratio Air Voltage Transformer." Energies 18, no. 6 (2025): 1329. https://doi.org/10.3390/en18061329.

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This paper presents a resonant wireless power transfer method that leverages a 90-degree voltage phase shift between the transmitting and receiving coils to enhance efficiency and maximize power transfer. When the resonant coupling is achieved, the secondary coil with an adjustable capacitor forms a tuned LC circuit. If the primary coil is driven at the resonant frequency of both the primary and secondary sides, the system can transmit 250W of power between the coils over a distance of 50 cm. Using a single power transmitting unit (PTU) board with multiple paralleled gallium nitride high-elect

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Pejovic, Milic, Momcilo Pejovic, and Aleksandar Jaksic. "Radiation-sensitive field effect transistor response to gamma-ray irradiation." Nuclear Technology and Radiation Protection 26, no. 1 (2011): 25–31. http://dx.doi.org/10.2298/ntrp1101025p.

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The influence of gate bias during gamma-ray irradiation on the threshold voltage shift of radiation sensitive p-channel MOSFETs determined on the basis of transfer characteristics in saturation has been investigated. It has been shown that for the gate bias during the irradiation of 5 V and 10 V the sensitivity of these transistors can be presented as the threshold voltage shift and the absorbed irradiation dose ratio. On the bases of the subthreshold characteristics and transfer characteristics in saturation using the midgap technique we have determined the densities of radiation induced oxid

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35

Lee, Hong-Hee, and Hoang M. Nguyen. "An Effective Direct-SVM Method for Matrix Converters Operating With Low-Voltage Transfer Ratio." IEEE Transactions on Power Electronics 28, no. 2 (2013): 920–29. http://dx.doi.org/10.1109/tpel.2012.2205405.

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Jahangiri, Alireza, and Ahmad Radan. "Indirect matrix converter with unity voltage transfer ratio for AC to AC power conversion." Electric Power Systems Research 96 (March 2013): 157–69. http://dx.doi.org/10.1016/j.epsr.2012.11.008.

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Chen, Ruike, Changming Zhang, Juin Jei Liou, and Yao Wang. "Efficiency-Enhanced Hybrid Dickson Converter with Quasi-Complete Soft Charging for Direct Large-Ratio Step-Down Applications." Electronics 14, no. 10 (2025): 2001. https://doi.org/10.3390/electronics14102001.

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This article presents an efficient non-isolated DC-DC hybrid converter for direct large-ratio step-down applications such as data centers. The converter topology employs a three-level-assisted Dickson switched capacitor network and interleaved dual inductors, significantly mitigating voltage swings at the switching nodes. As a result, the conduction duration of rectifying switches is substantially extended. This configuration is suitable for both odd- and even-order converters, achieving self-balancing of the flying capacitor voltages and inductor currents. To address uneven interleaved induct

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38

Rajs, Vladimir, Dejana Herceg, Živadin Despotović, et al. "Dead-Time Effect in Inverters on Wireless Power Transfer." Electronics 13, no. 2 (2024): 304. http://dx.doi.org/10.3390/electronics13020304.

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This paper presents a comprehensive analysis of the dead-time effects in wireless power transfer systems based on LCC-S topology. In these systems operating at high frequencies, the ratio of dead-time versus the operating period becomes critical, and the dead-time issue can cause certain problems regarding power quality, efficiency, and output voltage ripple. The impact of input quantities such as voltage and switching frequency on the efficiency and output power of the LCC-S-tuned WPT system was also investigated. The optimal combination of these parameters used to achieve the maximum efficie

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39

Baranov, Pavel F., Valeriy N. Borikov, and Edvard I. Tsimbalist. "Measurement of the Current Transfer Function for Power Transducers of Current to Voltage." Applied Mechanics and Materials 756 (April 2015): 615–21. http://dx.doi.org/10.4028/www.scientific.net/amm.756.615.

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Transducers of current to voltage, such as current shunts are widely used in control systems for the mechanical engineering. The shunt is required to determine the value of its resistance on DC and AC currents to determine the transfer ratio error in the wide frequency band in process of verification or calibration. Well-known methods for resistance measuring (by Thompson' double bridge; magnetic comparator, compensation technique, etc.) require a commerce resistance and difficult to implement for shunts with resistance less than 0.1 Ohms. The paper describes a procedure for measuring the comp

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40

Li, Xiaofei, Haichao Wang, and Xin Dai. "A Power and Data Decoupled Transmission Method for Wireless Power Transfer Systems via a Shared Inductive Link." Energies 11, no. 8 (2018): 2161. http://dx.doi.org/10.3390/en11082161.

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Wireless Power Transfer (WPT) technology is gaining global popularity. However, in some applications, data transmission is also required to monitor the load states. This paper presents an alternative wireless power and data transmission method via the shared inductive link. With the method, the system presents three characteristics: (1) controllability and stability of the output voltage; (2) miniaturization in volume of the system; (3) decoupled transmission of power and data. The output voltage control is realized by a non-inductive hysteresis control method. In particular, data is transferr

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41

Lin, Bor-Ren, and Kun-Yi Chen. "Hybrid LLC Converter with Wide Range of Zero-Voltage Switching and Wide Input Voltage Operation." Applied Sciences 10, no. 22 (2020): 8250. http://dx.doi.org/10.3390/app10228250.

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A new hybrid inductor-inductor-capacitor (LLC) converter is investigated to have wide voltage input operation capability and zero-voltage turn-on characteristics. The presented circuit topology can be applied for consumer power units without power factor correction or with long hold-up time requirement, photovoltaic energy conversion and renewable energy power transfer. To overcome the weakness of narrow voltage gain of resonant converter, the hybrid LLC converter with different turns ratio of transformer is presented and the experimental investigation is provided to achieve wide voltage input

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42

Chakraborty, Suvamit, and Amod C. Umarikar. "Coupled quadratic boost converter for stand-alone PV applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 15, no. 4 (2024): 2603. http://dx.doi.org/10.11591/ijpeds.v15.i4.pp2603-2617.

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This study focuses on a stand-alone photovoltaic (PV) system employing a high step-up quadratic boost converter and a battery management system. The quadratic boost converter, featuring a tapped inductor, facilitates voltage boosting by adjusting the duty ratio, ensuring low voltage stress on the active switch and enhancing overall efficiency. Coordination control techniques are proposed for smooth power transfer between the PV array, battery, and DC-link, accommodating variations in solar irradiation, ambient temperature, and loads. Design, modeling, and simulation are conducted using the PLE

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43

Chakraborty, Suvamit, and Amod C. Umarikar. "Coupled quadratic boost converter for stand-alone PV applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 15, no. 4 (2024): 2603–17. https://doi.org/10.11591/ijpeds.v15.i4.pp2603-2617.

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This study focuses on a stand-alone photovoltaic (PV) system employing a high step-up quadratic boost converter and a battery management system. The quadratic boost converter, featuring a tapped inductor, facilitates voltage boosting by adjusting the duty ratio, ensuring low voltage stress on the active switch and enhancing overall efficiency. Coordination control techniques are proposed for smooth power transfer between the PV array, battery, and DC-link, accommodating variations in solar irradiation, ambient temperature, and loads. Design, modeling, and simulation are conducted using the PLE

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44

Al-Modaffer, Ameen M., Amer A. Chlaihawi, and Husam A. Wahhab. "Non-isolated multiple input multilevel output DC-DC converter for hybrid power system." Indonesian Journal of Electrical Engineering and Computer Science 19, no. 2 (2020): 635. http://dx.doi.org/10.11591/ijeecs.v19.i2.pp635-643.

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<p><span>The utilization of multisources of energy in a compact and an effective power system gains an essential role in power electronic industry. As such, the design and simulation of a new non-isolated Multiple Input Multilevel Output (MIMLO) DC-DC converter for hybrid power system is presented. The MIMLO DC-DC converter can be integrated in renewable energy, such as fuel cells, wind turbines and photovoltaic arrays etc, to get the best output voltages. The MIMLO DC-DC converter powers the load from renewable energy sources through the independence of the availability of other s

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Ameen, M. Al-Modaffer, A. Chlaihawi Amer, and A. Wahhab Husam. "Non-isolated multiple input multilevel output DC-DC converter for hybrid power system." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 19, no. 2 (2020): 635–43. https://doi.org/10.11591/ijeecs.v19.i2.pp635-643.

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The utilization of multisources of energy in a compact and an effective power system gains an essential role in power electronic industry. As such, the design and simulation of a new non-isolated Multiple Input Multilevel Output (MIMLO) DC-DC converter for hybrid power system is presented. The MIMLO DC-DC converter can be integrated in renewable energy, such as fuel cells, wind turbines and photovoltaic arrays etc, to get the best output voltages. The MIMLO DC-DC converter powers the load from renewable energy sources through the independence of the availability of other sources. The proposed

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46

D.Srinivasa Rao & Dr. Anupama A. Deshpande. "DAB Based DC-DC High Frequency Link PET for Interconnecting MVDC-LVDC Grids." International Journal for Modern Trends in Science and Technology 7, no. 05 (2021): 165–71. http://dx.doi.org/10.46501/ijmtst0705028.

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This paper proposes dual active bridge (DAB) based high frequency power electronic transformer (PET) for interconnecting medium voltage dc (MVDC) and low voltage dc (LVDC) grids for dc power distribution. The above proposed concept works on dual active phase shift principle and square wave HF modulation technique for bidirectional power transfer. Compared to the traditional dc transformer scheme, The proposed power electronic transformer (PET) can disconnect from LVDC distribution grid effectively as a dc breaker when a short circuit fault occurs in the distribution grid. The isolated DC-DC PE

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KIROLOS, SAMI, and YEHIA MASSOUD. "DYNAMIC VOLTAGE SCALING CONTINUOUS ADAPTIVE-SIZE CELL DESIGN TECHNIQUE." Journal of Circuits, Systems and Computers 17, no. 05 (2008): 871–83. http://dx.doi.org/10.1142/s0218126608004630.

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In this paper, we present an adaptive circuit design that is capable of increasing the effective size-ratio of combinational logic gates to extend the balanced operation in the subthreshold region as well as to maintain high performance at the nominal VDD. We optimize the sizes of the PMOS transistors in the pull-up network for minimum power dissipation and propagation delay over a wide range of supply voltage. In addition to the minimized energy operation, the dynamically adjustable gate size-ratio allows the gate to preserve a symmetric voltage transfer characteristic at both normal supply a

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48

Li, Chao, Lei Huang, and Juntang Yuan. "Effect of sp3 Content on Adhesion and Tribological Properties of Non-Hydrogenated DLC Films." Materials 13, no. 8 (2020): 1911. http://dx.doi.org/10.3390/ma13081911.

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Non-hydrogenated diamond-like carbon (DLC) films with various ratios of sp3/sp2 were prepared on cemented carbide YG8 with DC magnetron sputtering technology. A pure graphite target was selected as the carbon source. Before DLC deposition, a surface etching pretreatment was carried out by mid-frequency magnetron sputtering method, using Ti atoms to improve adhesion strength. The ratios of sp3/sp2 were adjusted by bias voltages. In order to investigate the effect of the ratio of sp3/sp2 on adhesion and tribological properties, Raman spectra, XPS spectra, adhesion scratch test and ball-on-disk d

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Tang, Li-Chuan, Shyr-Long Jeng, Edward-Yi Chang, and Wei-Hua Chieng. "Variable-Frequency Pulse Width Modulation Circuits for Resonant Wireless Power Transfer." Energies 14, no. 12 (2021): 3656. http://dx.doi.org/10.3390/en14123656.

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In this paper, we develop a variable-frequency pulse width modulation (VFPWM) circuit for input control of 6.78-MHz resonant wireless power transfer (WPT) systems. The zero-voltage switching control relies on the adjustments of both duty cycle and switching frequency for the class-E amplifier used in the WPT as the power transmission unit. High-frequency pulse wave modulation integrated circuits exist, but some have insufficiently high frequency or unfavorable resolution for duty cycle tuning. The novelty of this work is the VFPWM circuit design that we put together. A voltage-controlled oscil

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Wang, Lewei, Zhenhua Li, Heping Lu, Feng Zhou, and Yinglong Diao. "Modeling and Simulation of Wide-Frequency Characteristics of Electromagnetic Standard Voltage Transformer." Electronics 13, no. 21 (2024): 4206. http://dx.doi.org/10.3390/electronics13214206.

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To achieve the broadband applicability of standard voltage transformers in “dual high” power systems, an equivalent circuit model of the standard voltage transformer is first established. Using the complex magnetic permeability method and utilizing existing core parameters, the excitation impedance values are obtained. Next, based on the equivalent circuit model, the no-load error function of the standard voltage transformer is analyzed, and through simulation, the no-load error response curve of the standard voltage transformer in the frequency range of 20 Hz to 3000 Hz is derived. The simula

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