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Готові списки джерел за темами / Discontinuous conduction mode (DCM) / Статті в журналах

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Статті в журналах з теми "Discontinuous conduction mode (DCM)"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Tan, Cheng, and Zhi-Shan Liang. "Modeling and performance analysis of the fractional order quadratic Boost converter in discontinuous conduction mode-discontinuous conduction mode." Modern Physics Letters B 30, no. 06 (2016): 1650014. http://dx.doi.org/10.1142/s0217984916500147.

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Анотація:

In this paper, based on the fact that the inductors and capacitors are of fractional order in nature, the four-order mathematical model of the fractional order quadratic Boost converter in type I and type II discontinuous conduction mode (DCM) — DCM is established by using fractional calculus theory. Direct current (DC) analysis is conducted by using the DC equivalent model and the transfer functions are derived from the corresponding alternating current (AC) equivalent model. The DCM–DCM regions of type I and type II are obtained and the relations between the regions and the orders are found.

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2

PARUI, S., S. BANERJEE, S. SENGUPTA, and B. BASAK. "EXPERIMENTAL VERIFICATION OF BORDER COLLISION BIFURCATION DUE TO MODE TRANSITION IN A CURRENT MODE CONTROLLED BUCK CONVERTER." Journal of Circuits, Systems and Computers 14, no. 04 (2005): 653–66. http://dx.doi.org/10.1142/s0218126605002568.

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Анотація:

The bifurcation phenomena occurring in a current mode controlled buck converter when it shifts from continuous conduction mode (CCM) to discontinuous conduction mode (DCM) have been reported. A sampled data model has been developed considering CCM as well as DCM. The bifurcation phenomena observed in such converters have been verified experimentally.

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3

Guan, Qingxin, and Yu Zhang. "Direct Charge Control Method for Inverters in Discontinuous Conduction Mode." Energies 15, no. 18 (2022): 6608. http://dx.doi.org/10.3390/en15186608.

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The discontinuous conduction mode (DCM) of the inductor current is an effective way to achieve high efficiency and high power density of inverters because it has the advantages of zero-current switching and small inductance of the filter inductor. Although the DCM can operate at a fixed switching frequency, there has been no linear model for realizing high-performance digital control. This paper provides a solution for this problem. Firstly, a linear first-order charge quantity model (CQM) for a DCM inverter with a fixed switching frequency is established, which uses charge quantities output b

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4

Christidis, Georgios, Anastasios Nanakos, and Emmanuel Tatakis. "Optimal Design of a Flyback Microinverter Operating under Discontinuous-Boundary Conduction Mode (DBCM)." Energies 14, no. 22 (2021): 7480. http://dx.doi.org/10.3390/en14227480.

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The flyback converter has been widely used in Photovoltaic microinverters, operating either in Discontinuous, Boundary, or Continuous Conduction Mode (DCM, BCM, CCM). The recently proposed hybrid DBCM operation inherits the merits of both DCM and BCM. In this work, the necessary analytical equations describing the converter operation for any given condition under DBCM are derived, and are needed due to the hybrid nature of the modulation strategy during each sinusoidal wave. Based on this analysis, a design optimization sequence used to maximize the weighted efficiency of the inverter under DB

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5

Calasan, Martin, and Vladan Vujicic. "Characteristics of switched reluctance motor operating in continuous and discontinuous conduction mode." Serbian Journal of Electrical Engineering 10, no. 1 (2013): 47–57. http://dx.doi.org/10.2298/sjee1301047c.

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This paper presents mechanical characteristics of Switched Reluctance Motor (SRM) when it operates in Discontinuous Conduction Mode (DCM) or in Continuous Conduction Mode (CCM), i.e. when the current through the phase coils (windings) flows discontinuously or continuously. Firstly, in order to maximize the output power of SRM optimization of its control parameters was performed, such that the peak and RMS values of the current do not exceed the predefined values. The optimal control parameters vs. rotation speed, as well as the corresponding characteristics of torque, power and efficiency. It

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6

Shahir, Farzad Mohammadzadeh, Ebrahim Babaei, and Murtaza Farsadi. "A New Structure for Nonisolated Boost DC–DC Converter." Journal of Circuits, Systems and Computers 26, no. 01 (2016): 1750012. http://dx.doi.org/10.1142/s0218126617500128.

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Анотація:

In this paper, a new structure of nonisolated boost DC–DC converters is proposed. The operation of the proposed structure in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is presented. Then, the critical inductance relation between CCM and DCM is obtained. The voltage gain and current stress of switches are calculated. Finally, the validity of the presented theoretical issues is reconfirmed by using simulation results obtained from PSCAD/EMTDC software.

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7

Lucanu, Nicolae, Mihai Lucanu, Ovidiu Ursaru, and Cristian Aghion. "A Novel Method for Accurate Determination of the Output Voltage Ripple of DC Converters in All Operating Modes." Electronics 14, no. 12 (2025): 2406. https://doi.org/10.3390/electronics14122406.

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Анотація:

This paper introduces a novel, high-accuracy method for determining the output voltage ripple in DC–DC converters. For the buck converter, the proposed approach enables accurate ripple estimation even under discontinuous conduction mode (DCM) operation. In the case of boost and buck–boost converters, this method not only facilitates ripple calculation in DCM but also enhances accuracy in continuous conduction mode (CCM), particularly near the transition boundary between CCM and DCM. The validity of the proposed method has been confirmed through both simulations and experimental measurements, w

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8

Janke, Włodzimierz, and Marcin Walczak. "Influence of output conductance on characteristic frequencies of switch mode BUCK and BOOST converter." Archives of Electrical Engineering 66, no. 1 (2017): 165–78. http://dx.doi.org/10.1515/aee-2017-0012.

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Анотація:

Abstract Characteristic frequencies corresponding to poles and zeros of small-signal control-to-output transfer functions of popular DC-DC converters (BUCK and BOOST) are analyzed. The main attention is paid to influence of load conductance on the characteristic frequencies for converters working in continuous conduction mode (CCM) as well as in discontinuous conduction mode (DCM). Parasitic resistances of all converter components are included in calculations. In addition the improved description of CCM-DCM boundary is presented. The calculations are verified experimentally and good consistenc

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9

Rizqiawan, Arwindra, Muhammad Farras Muzakki, and Jihad Furqani. "Improving efficiency of multi-phase cascaded DC-DC boost converters in discontinuous conduction mode suitable for renewable energy application." International Journal of Power Electronics and Drive Systems (IJPEDS) 16, no. 2 (2025): 1248. https://doi.org/10.11591/ijpeds.v16.i2.pp1248-1260.

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This study presents an improvement on the efficiency of a proposed multiphase cascaded DC-DC boost converter by employing discontinuous conduction mode(DCM) for its operation. The proposed multiphase cascaded DC-DC boost converter is characterized by high voltage gain and low input current ripple. This converter consists of two stages and is designed to connect a photovoltaic (PV)system to a DC microgrid bus. First, the loss equations for the converter are analyzed, then discontinuous conduction mode is applied to the first stage of the proposed converter by adjusting the second stage output c

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10

Chaoui, Hicham, Mohamad Alzayed, Okezie Okoye, and Mehdy Khayamy. "Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction Modes." Energies 13, no. 16 (2020): 4187. http://dx.doi.org/10.3390/en13164187.

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Анотація:

The inherently different dynamics of a DC-DC converter while operating in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) necessitate an advanced controller to control the inductor current. A conventional PI controller cannot be used across both modes since it does not guarantee a smooth transition between both modes. Furthermore, in time-varying input-output voltage applications of the four-quadrant converter such as in battery charging applications, the location of the boundary between the CCM and the DCM changes dynamically, creating an uncertainty. Therefore,

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11

Pireethi, R., and R. Balamurugan. "Bridgeless Isolated Cuk PFC Implementation using PID and Neural Controller." Indonesian Journal of Electrical Engineering and Computer Science 2, no. 1 (2016): 88. http://dx.doi.org/10.11591/ijeecs.v2.i1.pp88-95.

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<p> The comparision of Bridgeless Isolated Cuk converter using Proportional Integral Derivative (PID) and Neural controller (NC) is presented in this paper. Due to Diode Bridge Rectifier (DBR) conventional converters suffer from high conduction loss. Bridgeless Cuk converter is used to eliminate the issues. Bridgeless Isolated (BLI) Cuk converter is used to withstand high voltage. Compare to Continuous Conduction Mode (CCM) Discontinuous Conduction Mode (DCM) utilize less number of sensors. To obtain unity power factor it is used to work in DCM mode. BLI Cuk Converter is implemented in t

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12

Noman, Abdullah M., Haseeb Shakeel Sheikh, Ali Faisal Murtaza, Sulaiman Z. Almutairi, Mohammed H. Alqahtani, and Ali S. Aljumah. "Maximum Power Point Tracking Algorithm of Photo-Voltaic Array through Determination of Boost Converter Conduction Mode." Applied Sciences 13, no. 14 (2023): 8033. http://dx.doi.org/10.3390/app13148033.

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Анотація:

In this paper, we present a new maximum power point tracking (MPPT) algorithm that can identify whether a boost converter is operating in continuous conduction mode (CCM) or discontinuous conduction mode (DCM). The conventional MPPT algorithm assumes that the converter is always in CCM mode, even though this is not always the case. The converter can enter DCM mode due to factors such as the inductor size, irradiance and temperature conditions, voltage step size of the algorithm, and operating point of the PV array. In the proposed work, the conduction mode of a boost converter is evaluated und

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13

Cittanti, Davide, Matteo Gregorio, Fabio Mandrile, and Radu Bojoi. "Full Digital Control of an All-Si On-Board Charger Operating in Discontinuous Conduction Mode." Electronics 10, no. 2 (2021): 203. http://dx.doi.org/10.3390/electronics10020203.

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Анотація:

This paper deals with the design, tuning and implementation of a digital controller for an all-Si electric vehicle (EV) on-board battery charger operated in discontinuous conduction mode (DCM). This charger consists of two cascaded conversion stages: a front-end power factor corrector (PFC) with two interleaved legs and an isolated phase-shifted full bridge DC/DC converter. Both stages operate in DCM over the complete battery charging power range, allowing lower inductance values for both the PFC and the DC/DC filtering elements. Moreover, DCM operation ensures a large reduction of the reverse

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14

Niu, Junhao, and Hongtang Miao. "A predictive Algorithm for Boost PFC Operating in Mixed Conduction Mode." Journal of Physics: Conference Series 2419, no. 1 (2023): 012097. http://dx.doi.org/10.1088/1742-6596/2419/1/012097.

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Анотація:

Abstract The traditional PFC control adopts the PI algorithm of the double-loop structure, but the PI parameter designed at this time is aimed at the inductor current continuous mode (CCM). When the PFC enters a heavy or light load, the converter inevitably enters the inductor current discontinuous mode (DCM). If the control parameters of CCM are still used at this time, the system may become unstable and reduce load response speed. Therefore, an optimized predictive current control is proposed, which calculates the duty cycle in CCM and DCM separately in advance, and then adopts the correspon

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15

Threyini, K. "Q-EDR Hybrid Boost Converter Operation For High Gain With Low Device Stress." International Journal for Research in Applied Science and Engineering Technology 12, no. 8 (2024): 185–94. http://dx.doi.org/10.22214/ijraset.2024.63869.

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Abstract: The hybrid continuous-discontinuous mode (CCM-DCM) operation of non-isolated systems is proposed in this paper. boost converter with quadratic extended duty ratio (Q-EDR) for applications with high gain and low power. The inductors at the input while the EDR was in continuous conduction mode (CCM) The mode of operation of stage inductors is discontinuous conduction. (DCM) in order to reap the advantages of CCM and DCM operation. Interleaving's ripple in the low input current and low voltage The EDR stage switches' stress remains. With what is being half and half method of activity, t

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16

Hasanzadeh, Saeed, Milad Asadi, and Tole Sutikno. "Discontinuous conduction mode approach of ultra-lift DC-DC converter based on three windings coupled inductor." International Journal of Power Electronics and Drive Systems (IJPEDS) 14, no. 2 (2023): 921. http://dx.doi.org/10.11591/ijpeds.v14.i2.pp921-933.

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Анотація:

These days, DC-DC boost converters play an essential role in a variety of applications. Therefore, a variety of techniques were proposed in the literature to achieve the highest voltage gain. A large number of passive elements are typically used in high-voltage DC-DC converters. Increasing the order of the system would make modeling and controlling the output voltage of the converter more complex. This paper examines an ultra-lift DC–DC converter using a three-winding inductor and a super-lift construction in discontinuous conduction mode (DCM). This converter provides substantial voltage gain

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17

Janke, W., and M. Walczak. "Comparison of transient states in step-down power converter (BUCK) in continuous and discontinuous conduction mode." Bulletin of the Polish Academy of Sciences Technical Sciences 62, no. 4 (2014): 773–78. http://dx.doi.org/10.2478/bpasts-2014-0084.

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Анотація:

Abstract The object of this paper is a step-down (BUCK) power converter working in the continuous conduction mode (CCM) or discontinuous conduction mode (DCM). Two types of transient states in a converter have been analyzed and observed experimentally: slow transients, described by averaged models of a converter and fast transients, in the course of a single switching period. The averaged models of converter working in CCM, presented in various sources are similar, with some differences concerning only the description of parasitic effects. The averaged models for DCM depend on the adopted mode

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18

Patel, Hardik, and Ankit Shah. "Boundary-Based Hybrid Control Algorithm for Switched Boost Converter Operating in CCM and DCM." International Journal of Electrical and Electronics Research 11, no. 1 (2023): 213–21. http://dx.doi.org/10.37391/ijeer.110129.

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Анотація:

It is essential to have enhanced efficiency for the DC-DC converters operating in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). This requires a hybrid controller designed using pulse width modulation (PWM) and pulse frequency modulation (PFM) schemes. This paper fixates on a boundary-based hybrid control algorithm for the second-order DC-DC converter - the switched boost converter. The proposed algorithm works in PWM control scheme for CCM operation, whereas DCM operation uses PFM control scheme. The boundary conditions are defined by the load current, output voltag

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19

Laksono, Tegar Ubo, Trias Andromeda, and Bambang Winardi. "PENGARUH VARIASI INDUKTOR TERHADAP HASIL OPERASI CCM DAN DCM DC CHOPPER TIPE ZETA BERBASIS IC TL494." TRANSIENT 7, no. 1 (2018): 1. http://dx.doi.org/10.14710/transient.7.1.1-7.

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Kebutuhan konversi tegangan arus searah semakin banyak digunakan dibidang industri dalam skala besar maupun kecil. Salah satu cara untuk mengkonversi tegangan arus searah konstan ke tegangan arus searah yang dapat divariasikan adalah dengan menggunakan DC Chopper. DC chopper terdiri dari beberapa konfigurasi yang sering digunakan yaitu buck, boost, buck – boost, cuk, sepic dan zeta. DC Chopper mempunyai 2 mode operasi kerja, yaitu mode DCM (Discontinuous Conduction Mode) dan mode CCM (Continuous Conduction Mode). Banyak penelitian yang memanfaatkan kinerja DC Chopper sebagai penyedia catu daya

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20

Boudouda, Aimad, Nasserdine Boudjerda, and Fares Nafa. "Analysis of output voltage ripple for dual randomized PWM buck converter operating in continuous and discontinuous conduction modes." Acta Polytechnica 62, no. 2 (2022): 262–73. http://dx.doi.org/10.14311/ap.2022.62.0262.

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Dual Randomized Pulse Width Modulation (DRPWM) is renowned for its better effectiveness than Simple Randomized Pulse Width Modulation (SRPWM) in reducing conducted Electro-Magnetic Interferences (EMI) in power converters. However, the introduction of low-frequency ripples into the output voltage by dual randomization has not yet been addressed; this effect is investigated in this paper for a buck converter operating in both the continuous conduction mode (CCM) and the discontinuous conduction mode (DCM). First, the modulating principle is presented. Then, a general analytical expression for po

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21

Lu, Liangliang, Gaoshuai Shen, Haoran Xu, et al. "Triple-Mode Average Current Control with Valley Current Shaping for DCM/CRM/CCM Boost PFC Converter." Energies 15, no. 19 (2022): 7319. http://dx.doi.org/10.3390/en15197319.

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This paper presents a triple-mode average current control (TACC) strategy to achieve unity power factor and reduce the current stress for a boost PFC converter. The controller switches among different modes in each half-line cycle, and smooth transition is ensured by mapping of the operation region. By adaptive mode shifting, it reduces the current stress and current distortion caused by non-linear effects. With valley current shaping and comparisons, the TACC controller accordingly incorporates three control laws to adapt different modes. In discontinuous conduction mode (DCM), a variable on-

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22

Tayar, Tal, Alexander Abramovitz, and Doron Shmilovitz. "DCM Boost PFC for High Brightness LED Driver Applications." Energies 14, no. 17 (2021): 5486. http://dx.doi.org/10.3390/en14175486.

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Анотація:

This paper is concerned with the derivation of a discontinuous conduction mode boost PFC rectifier as a driver for high-power LED lighting applications. The proposed driver is operated in the current mode regime while emulating a resistance towards the line, thus attaining a near unity power factor and low total harmonic distortion of the line current. Theoretical analysis is reported and conditions for the low LED flicker are derived. A method of design for minimum THD is also suggested. Simulation and experimental results are reported.

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23

S., Nagaraj, Ranihemamalini R., Rajaji L., Srividya K., and Mohandoss A. "LLC Resonant Tank based Converter for EV Charging Application." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 3 (2020): 4063–66. https://doi.org/10.35940/ijeat.B3050.029320.

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The aim of the article is to maximize the battery life using LLC resonant tank. LLC tank designing methodology and also the practical designing examination is introduced in LLC multi converter. Designed dc- dc converter increases the battery life by eliminating low and high frequency current ripples. In addition, bridgeless cuk converter is used for power factor improvement. To achieve the better power factor and to reduce the conduction losses the cuk converter is aimed to function in discontinuous mode of conduction (DCM). DC output voltage ranging 42-24 V for 650 W is obtained from the mode

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24

Janke, Włodzimierz, Maciej Bączek, Jarosław Kraśniewski, and Marcin Walczak. "Input Small-Signal Characteristics of Selected DC–DC Switching Converters." Energies 15, no. 5 (2022): 1924. http://dx.doi.org/10.3390/en15051924.

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Анотація:

The main goal of this study was to derive small-signal models of the input characteristics of buck, boost, and flyback converters working in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The models presented in the paper were derived using the separation of variables approach and included the parasitic resistances of all converter components. The paper features a discussion about the limitations of the model accuracy. The presented characteristics were obtained by calculation and verified by measurements. The input characteristics of converters are essential in the

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25

S, Sathiyamoorthy, and Gopinath M. "A Novel High Gain SEPIC Converter with the Tapped Inductor Model Operating in Discontinuous Conduction Mode for Power Factor Correction." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 2 (2016): 450. http://dx.doi.org/10.11591/ijpeds.v7.i2.pp450-459.

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Анотація:

Power Factor Correction (PFC) has become one of the most active research areas in the field of power electronics due to the surplus power required for various industrial applications around the world. In this work, a novel SEPIC converter with the Tapped Inductor model operating in Discontinuous Conduction Mode (TI-SEPIC- DCM) is proposed for PFC. The proposed TI-SEPIC-DCM improves the voltage gain through voltage multiplier cell and charge pump circuit. The voltage multiplier cell also helps in attaining the Zero-Voltage Switching (ZVS) and Zero-Current Switching (ZCS), which results in highe

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26

Saeed, Hasanzadeh, Asadi Milad, and Sutikno Tole. "10.11591/ijpeds.v14.i2.pp921-933." International Journal of Power Electronics and Drive Systems 14, no. 02 (2023): 921~933. https://doi.org/10.11591/ijpeds.v14.i2.pp921-933.

Повний текст джерела

Анотація:

These days, DC-DC boost converters play an essential role in a variety of applications. Therefore, a variety of techniques were proposed in the literature to achieve the highest voltage gain. A large number of passive elements are typically used in high-voltage DC-DC converters. Increasing the order of the system would make modeling and controlling the output voltage of the converter more complex. This paper examines an ultra-lift DC–DC converter using a three-winding inductor and a super-lift construction in discontinuous conduction mode (DCM). This converter provides substantial voltag

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27

Parada Salado, Juan Gerardo, Carlos Alonso Herrera Ramírez, Allan Giovanni Soriano Sánchez, and Martín Antonio Rodríguez Licea. "Nonlinear Stabilization Controller for the Boost Converter with a Constant Power Load in Both Continuous and Discontinuous Conduction Modes." Micromachines 12, no. 5 (2021): 522. http://dx.doi.org/10.3390/mi12050522.

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Анотація:

The operation of Boost converters in discontinuous conduction mode (DCM) is suitable for many applications due to the, among other advantages, inductor volume reduction, high efficiency, paralleling, and low cost. Uses in biomedicine, nano/microelectromechanical, and higher power systems, where wide ranges of input/output voltage and a constant power load (CPL) can coexist, are well-known examples. Under extremely wide operating ranges, it is not difficult to change to a continuous conduction mode (CCM) operation, and instability, chaos, or bifurcations phenomena can occur regardless of the co

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28

Tofoli, Fernando Lessa. "Generalized Pulse Width Modulation Switch Model for Converters Based on the Multistate Switching Cell in Discontinuous Conduction Mode." Sensors 24, no. 10 (2024): 3084. http://dx.doi.org/10.3390/s24103084.

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Анотація:

This work introduces a generalized version of the pulse width modulation (PWM) switch model applied in the small-signal modeling of converters based on the multistate switching cell (MSSC) operating in discontinuous conduction mode (DCM). It consists of extending the concept formerly introduced by Vorperian for the representation of multiphase converters in DCM, yielding a circuit-based approach that does not rely on matrix manipulations unlike state-space averaging (SSA). The derived dc and ac models are valid for any number of switching states and any operating region defined in terms of the

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29

Han, Jung-Kyu. "Frequency Modulation Scheme for CCM Boost PFC Converter to Improve THD in Light-Load Condition." Electronics 13, no. 2 (2024): 256. http://dx.doi.org/10.3390/electronics13020256.

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Анотація:

This study proposes a novel frequency modulation scheme for a continuous conduction mode (CCM) boost power factor correction (PFC) converter. The aim is to improve the total harmonic distortion (THD) under light-load conditions. Boost converters are widely utilized with CCM control for the PFC stage owing to their ability to achieve high efficiency with minimal components. In addition, they have a high power factor (PF) and low THD. However, despite being designed for CCM operation, the boost PFC converter transitions into discontinuous conduction mode (DCM) as the output load decreases. This

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30

Kroics, K., and A. Sokolovs. "Interleaved DC-DC Converter with Discrete Duty Cycle and Open Loop Control." Latvian Journal of Physics and Technical Sciences 53, no. 4 (2016): 14–21. http://dx.doi.org/10.1515/lpts-2016-0024.

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Анотація:

Abstract The authors present the control principle of the multiphase interleaved DC-DC converter that can be used to vastly reduce output current ripple of the converter. The control algorithm can be easily implemented by using microcontroller without current loop in each phase. The converter works in discontinuous conduction mode (DCM) but close to boundary conduction mode (BCM). The DC-DC converter with such a control algorithm is useful in applications that do not require precise current adjustment. The prototype of the converter has been built. The experimental results of the current rippl

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31

Abdullah, Mohamad Nazir, Muhammad Hafeez Mohamed Hariri, Mohd Khairunaz Mat Desa, Mohd Nadzri Mamat, and Suardi Kaharuddin. "Analysis and implementation of peak armature current (Imax) of a chopper-fed DC-DC motor drive in DCM." International Journal of Power Electronics and Drive Systems (IJPEDS) 16, no. 1 (2025): 96. https://doi.org/10.11591/ijpeds.v16.i1.pp96-105.

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Анотація:

At low frequencies of operation in a chopper-fed direct current (DC) motor drive, the armature current may become discontinuous thus the controller operates in discontinuous conduction mode (DCM). Since the minimum armature current is zero in DCM, the analysis of peak armature current (Imax) is to investigate the ripple content in armature current at different values of duty cycle which will help in decreasing the peaky current of DC motor during operation. The simulation was carried out using MATLAB-Simulink software and the laboratory setup was based on Atmega 328 microcontroller board. In t

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32

Abdullah, Mohamad Nazir, Muhammad Hafeez Mohamed Hariri, Mohd Khairunaz Mat Desa, and Mohd Nadzri Mamat. "Analysis and implementation of peak armature current (Imax) of a chopper-fed DC-DC motor drive in DCM." International Journal of Power Electronics and Drive Systems 16, no. 1 (2025): 96–105. https://doi.org/10.11591/ijpeds.v16.i1.pp96-105.

Повний текст джерела

Анотація:

At low frequencies of operation in a chopper-fed direct current (DC) motor drive, the armature current may become discontinuous thus the controller operates in discontinuous conduction mode (DCM). Since the minimum armature current is zero in DCM, the analysis of peak armature current (Imax) is to investigate the ripple content in armature current at different values of duty cycle which will help in decreasing the peaky current of DC motor during operation. The simulation was carried out using MATLAB-Simulink software and the laboratory setup was based on Atmega 328 microcontroller board. In t

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33

M, Kalarathi, Gnanavadivel J, and Jayanthi K. "Augmented ASC Network for Photo Voltaic Applications." International Journal of Electrical and Electronics Research 10, no. 3 (2022): 544–49. http://dx.doi.org/10.37391/ijeer.100323.

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Анотація:

This work uses a DC-DC converter that employs an Active Switched Capacitor (ASC) to provide high gain that makes it appropriate for the Photo Voltaic (PV) system. The transformer less converter with an ASC network consists of a capacitor and a diode that boosts voltage effectively. The well-liked converter operates effectually on both Continuous Conduction Mode (CCM) and Discontinuous Conduction Modes (DCM). The suggested topology of converter is easy to design, and it renders a less stress on auxiliary diode and capacitors. This preferred converter scheme is validated through MATLAB Simulink

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34

Yaqoob, Salam J., Jawad K. Raham, and Hassan A. Sadiq. "Analysis and Simulation of Current-source Flyback Inverter with Efficient BCM Control Strategy." WSEAS TRANSACTIONS ON ELECTRONICS 12 (November 8, 2021): 132–40. http://dx.doi.org/10.37394/232017.2021.12.18.

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Анотація:

The Flyback inverter is a single-stage power inverter which represent an attractive solution for photovoltaic (PV) grid-tied inverter application. The main advantages of a current-source flyback inverter are high power density and high efficiency due to its small, as well as low total harmonic distortion (THD) operation. However, a flyback topology works with Discontinuous Conduction Mode (DCM) control strategy has lower efficiency and poor THD values. In this paper, an efficient current-source flyback inverter topology works with Boundary Conduction Mode (BCM) control strategy is presented. B

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35

Madrid, Emerson, Duberney Murillo-Yarce, Carlos Restrepo, Javier Muñoz, and Roberto Giral. "Modelling of SEPIC, Ćuk and Zeta Converters in Discontinuous Conduction Mode and Performance Evaluation." Sensors 21, no. 22 (2021): 7434. http://dx.doi.org/10.3390/s21227434.

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Анотація:

High-order switched DC-DC converters, such as SEPIC, Ćuk and Zeta, are classic energy processing elements, which can be used in a wide variety of applications due to their capacity to step-up and/or step-down voltage characteristic. In this paper, a novel methodology for analyzing the previous converters operating in discontinuous conduction mode (DCM) is applied to obtain full-order dynamic models. The analysis is based on the fact that inductor currents have three differentiated operating sub-intervals characterized by a third one in which both currents become equal, which implies that the c

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36

Suntio, Teuvo. "Modeling and Analysis of a PCM-Controlled Boost Converter Designed to Operate in DCM." Energies 12, no. 1 (2018): 4. http://dx.doi.org/10.3390/en12010004.

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Анотація:

Peak current-mode (PCM) control has been a very popular control method in power electronic converters. The small-signal modeling of the dynamics associated with PCM control has turned out to be extremely challenging. Most of the modeling attempts have been dedicated to the converters operating in continuous conduction mode (CCM) and just a few to the converters operating in discontinuous operation mode (DCM). The DCM modeling method published in 2001 was proven recently to be very accurate when applied to a buck converter. This paper provides the small-signal models for a boost converter and a

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37

Gulam, Amer, and Srinivasa Rao. "Estimation of reliability of a interleaving PFC boost converter." Serbian Journal of Electrical Engineering 7, no. 2 (2010): 205–16. http://dx.doi.org/10.2298/sjee1002205g.

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Анотація:

Reliability plays an important role in power supplies. For other electronic equipment, a certain failure mode, at least for a part of the total system, can often be employed without serious (critical) effects. However, for power supply no such condition can be accepted, since very high demands on its reliability must be achieved. At higher power levels, the continuous conduction mode (CCM) boost converter is preferred topology for implementation a front end with PFC. As a result, significant efforts have been made to improve the performance of high boost converter. This paper is one of the eff

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38

Humam, Al-Baidhani, and Sahib Abdullah. "Robust current-mode control of bridgeless single-switch SEPIC PFC converter." International Journal of Power Electronics and Drive System 14, no. 02 (2023): 960~968. https://doi.org/10.11591/ijpeds.v14.i2.pp960-968.

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Анотація:

In this paper, the nonlinear model of the bridgeless single-switch AC-DC single-ended primary-inductor converter (SEPIC) in discontinuous conduction mode is derived. In addition, a robust control method is introduced to accommodate the variations in input voltage and load current. The current-mode controlled power converter is designed to operate in buck and boost modes. The proposed closed-loop SEPIC converter is simulated in MATLAB to validate the design approach. The current-mode control scheme is also compared with the conventional voltage-mode controller. It is confirmed that the proposed

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39

Kwak, Bongwoo, and Jonghoon Kim. "Digital Implementation Method for Synchronous PWM Control of GaN Transistor at Zero-Crossing of Totem-Pole PFC in Energy Storage Applications." Electronics 10, no. 1 (2020): 30. http://dx.doi.org/10.3390/electronics10010030.

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Анотація:

A digital control scheme for GaN transistor-based totem pole power factor correction (PFC) is proposed in this paper. At the zero crossing, the totem pole PFC has a discontinuous conduction mode (DCM) current section because of its driving method and circuit structure. In the DCM current section, when a typical synchronous switching technique is applied, the inductor current is reduced to less than zero, thereby reducing efficiency. Moreover, because of the nature of the circuit, power may be transferred in reverse. To prevent this, a new synchronous switch technique using the cycle by cycle (

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40

Ferdous, Fouzia, Mahamudul Hassan, Naimur Rahman, Touhidul Hassan, and Rakibul Islam. "Design of an Energy Efficient Buck Based LED Driver in DCM and CCM." European Journal of Engineering and Technology Research 9, no. 3 (2024): 40–46. http://dx.doi.org/10.24018/ejeng.2024.9.3.3169.

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Анотація:

It is the design criteria of driving LEDs at constant current and keeping the input current’s harmonics low, attaining a high power factor, and maximizing efficiency. For low power general purpose lighting buck converter can be chosen for simplicity and reduced cost. It is a difficult to improve power quality parameter like, the THD (total harmonic distortion) and power factor of ac mains. In the proposed topology, the operation for high power factor and low THD at the AC mains’ input is accomplished through buck converter operation in both discontinuous conduction mode (DCM) and continuous co

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41

Lee, Min Chin, and Ruey Wun Jan. "Implementation and Design of Voltage-Mode PFM Control Buck Power Converter." Advanced Materials Research 860-863 (December 2013): 2390–94. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.2390.

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Анотація:

A lower power consumption, smaller output ripple and better regulation buck dcdc converter controlled by voltage feedback and pulse-frequency modulation (PFM) mode is implemented in this paper. The converter operating in discontinuous conduction mode (DCM) is designed and simulated using the TSMC 0.18μm 1P6M CMOS Process. Hspice simulation results show that, the buck converter having chip size with power dissipation about 0.68mW. This chip can operate with input supply voltage from 1.2V to 1.8V, and switching frequency from 249KHz () to 50KHz (), and its output voltage can stable at 1.0V and l

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42

Kim, Chan-Hyeok, and Dae-Su Park. "A Study on LED Driver Using Duty Cycle Split Method." Korea Industrial Technology Convergence Society 28, no. 4 (2023): 125–33. http://dx.doi.org/10.29279/jitr.2023.28.4.125.

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Анотація:

This study proposes a power factor correction (PFC) flyback converter, which uses film capacitors with longer lifespans instead of the existing electrolytic capacitor. Additionally, it adopts a coupled inductor and an LC resonance filter to mitigate the output ripple, which is inevitably generated by a film capacitor, and applies discontinuous conduction mode (DCM) for power factor correction. In contrast, this study measures the input and output voltages of the PFC flyback converter and the switching current for the DCM control and proposes a duty split method by adding a comparator and trian

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43

Kim, Minseung, Donghee Choi, and Soo Hyoung Lee. "A DCM-Based Non-Isolated Step-Down DC Transformer." Energies 17, no. 4 (2024): 940. http://dx.doi.org/10.3390/en17040940.

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Анотація:

DC transformers have emerged as essential devices for medium voltage DC (MVDC)-low voltage DC (LVDC) distribution systems. However, conventional step-down single-level converters have limits on the voltage level of the MVDC-LVDC distribution system. This paper proposes a non-isolated step-down (NISD) DC transformer based on discontinuous conduction mode (DCM). The proposed structure can withstand high voltage levels by sharing voltages between energy storage modules dividing voltage levels. The proposed NISD DC transformer determines operational modes based on energy storage modules and perfor

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44

ZHOU, GUOHUA, BOCHENG BAO, and JIANPING XU. "COMPLEX DYNAMICS AND FAST-SLOW SCALE INSTABILITY IN CURRENT-MODE CONTROLLED BUCK CONVERTER WITH CONSTANT CURRENT LOAD." International Journal of Bifurcation and Chaos 23, no. 04 (2013): 1350062. http://dx.doi.org/10.1142/s0218127413500624.

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Анотація:

The complex dynamics and coexisting fast-slow scale instability in current-mode controlled buck converter with constant current load (CCL), operating in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), are investigated in this paper. Via cycle-by-cycle computer simulation and experimental measurement of current-mode controlled buck converter with CCL, it is found that a unique fast-slow scale instability exists in the second-order switching converter. It is also found that a unique period-doubling accompanied by Neimark–Sacker bifurcation exists in this simple sec

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45

Fan, Xue Xin, Zhen Xie, Fei Xiao, and Rui Tian Wang. "Study of PI Adaptive Non-Linear Control Strategy Based on CCM/DCM Fast Identification for DC/DC Converter." Applied Mechanics and Materials 380-384 (August 2013): 302–8. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.302.

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Анотація:

An isolated three-level H-bridge high-capacity DC/DC converter is a good solution for transferring energy from middle-voltage network to low-voltage network. The transformer can be smaller and lighter with high working frequency, so phase shift Pulse-Width Modulation (PWM) is used by converter. The small signal model has been built by theoretical derivation and verified by simulation when the converter working on Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). The analyze results indicated that the mathematic models and dynamic properties were different when converter

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46

Rajesh, Ramachandran, and Natarajan Prabaharan. "Design of New Nonisolated High Gain Converter for Higher Power Density." International Transactions on Electrical Energy Systems 2023 (February 9, 2023): 1–10. http://dx.doi.org/10.1155/2023/2011926.

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Анотація:

A high gain nonisolated DC-DC converter using a single power semiconductor switch is proposed in this article. The operation of the proposed converter is explained under continuous conduction mode (CCM), discontinuous conduction mode (DCM), and boundary conduction mode (BCM). The mathematical expressions for steady-state voltage gain, voltage stress, and current stress of diodes and switch are provided. Also, the design of inductors and capacitors in the CCM mode is explained with appropriate mathematical equations. The proposed topology is tested with a 200 W prototype at 50 kHz and a 60% dut

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47

Kasikowski, Rafał. "Power Loss and Temperature Distribution in Coil of PFC Inductor with Air Gap for Multimode Operation." Pomiary Automatyka Robotyka 28, no. 1 (2024): 89–95. http://dx.doi.org/10.14313/par_251/89.

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Анотація:

Power converters inherently display non-linear load characteristics, resulting in a high level of mains harmonics, and hence the necessity of implementing Power Factor Correction (PFC). Active PFC circuitry typically comprises an inductor and a power switch to control and alter the input current so that it matches, in shape and phase, the input voltage. This modelling of the waveforms can be performed by means of distinct conduction modes of the PFC inductor. The digital controller implemented in the constructed and investigated boost-type PFC converter can be programmed to operate in disconti

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48

Giraldo-Hernández, David E. "Development of a Discrete-Time Map for Nonlinear Analysis of Flyback Converter." International Journal of Electrical and Electronic Engineering & Telecommunications 14, no. 2 (2025): 94–100. https://doi.org/10.18178/ijeetc.14.2.94-100.

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Анотація:

This paper presents a discrete-time map calculated from the nonlinear averaged model for a flyback DC-DC converter with peak current control. Traditional switched models, although accurate, are computationally expensive, limiting their practicality for rapid analysis. To address this limitation, we propose a novel discrete-time map of the flyback converter. The model achieves a simulation time reduction of over 97% compared to event-driven models while preserving high accuracy in both transient and steady-state conditions, with errors of less than 1%. Numerical simulations validate the model's

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49

Parada-Salado, Juan-Gerardo, Martín-Antonio Rodríguez-Licea, Allan-Giovanni Soriano-Sanchez, Omar-Fernando Ruíz-Martínez, Alejandro Espinosa-Calderon, and Francisco-Javier Pérez-Pinal. "Study on Multiple Input Asymmetric Boost Converters with Simultaneous and Sequential Triggering." Electronics 10, no. 12 (2021): 1421. http://dx.doi.org/10.3390/electronics10121421.

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Анотація:

Paralleled boost asymmetric configurations operating in discontinuous conduction mode (DCM) are suitable for integrating dissimilar green energy generating sources and control algorithms in versatile scenarios where voltage step-up, low cost, stable operation, low output ripple, uncomplicated design, and acceptable efficiency are needed. Unfortunately, research has mainly been conducted on the buck, sepic, switched-capacitor, among other asymmetric configurations operating in continuous conduction mode (CCM), to the authors’ knowledge. For asymmetric boost type topologies, achieving simultaneo

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50

Mao, Wenlong, and Xiaosan Ma. "LLC resonant converter analysis in PO mode." Journal of Physics: Conference Series 2758, no. 1 (2024): 012009. http://dx.doi.org/10.1088/1742-6596/2758/1/012009.

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Анотація:

Abstract The PO mode under time-domain analysis is a kind of discontinuous conduction mode (DCM) which is beneficial to reduce the switching loss of the converter, but the calculation of the gain and frequency characteristics of the converter in this mode is cumbersome and difficult to be solved. Based on the analysis method of time domain approximation, the PO operating mode characteristics of the LLC resonant converter are analyzed, and a simple and accurate voltage gain calculation formula is theoretically deduced. Simple analytical expressions for the PO mode power boundary conditions are

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