Proceedings ArticleDOI
A novel ZCS-ZVS-PWM DC-DC buck converter for high power and high switching frequency: analysis, simulation and experimental results
L.C. de Freitas,D.F. da Cruz,Valdeir J. Farias +2 more
- pp 693-699
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TLDR
In this article, a buck power converter using a zero current switching zero voltage switching PWM (ZCS-ZVS-PWM) cell for high switching frequency and high power operation is presented.Abstract:
A DC-to-DC power converter using a zero current switching zero voltage switching PWM (ZCS-ZVS-PWM) cell for high switching frequency and high power operation is presented. The proposed cell consists of only one main switch, plus an auxilliary switch, with ZVS and ZCS switching characteristics, respectively. These switches, associated with a resonant inductor and capacitor, yield zero voltage and zero current switching, providing highly efficient operating conditions for a wide range of power at high switching frequency. Converter control is accomplished by using the PWM technique, with constant frequency operation. A complete analysis of the operating principles, including output characteristics, relevant equations, state space phase, simulation, and experimental results for the buck power converter, is presented. >read more
Citations
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Journal ArticleDOI
A new ZVS bidirectional DC-DC converter for fuel cell and battery application
TL;DR: In this paper, a new zero-voltage-switching (ZVS) bidirectional dc-dc converter is proposed for medium and high power applications especially for auxiliary power supply in fuel cell vehicles and power generation where the high power density, low cost, lightweight and high reliability power converters are required.
Journal ArticleDOI
A new family of zero-voltage-transition PWM converters with dual active auxiliary circuits
Wannian Huang,Gerry Moschopoulos +1 more
TL;DR: In this article, a new family of active auxiliary circuits that allow the power switch in single switch, pulsewidth modulated converters to operate with zero-voltage switching is proposed, which is an improvement over previous proposed auxiliary circuits where either the auxiliary switch operates with a hard turnoff or the circuit itself increases the peak current stresses of the main switch.
Proceedings ArticleDOI
A novel family of DC-DC PWM converters using the self-resonance principle
TL;DR: A new class of commutation self-resonant PWM power convertor that overcomes this great disadvantage as well as being able to operate without switching losses in high switching frequencies for a wide line and load range is presented.
Journal ArticleDOI
A high-power high-frequency ZCS-ZVS-PWM buck converter using a feedback resonant circuit
TL;DR: In this paper, a buck DC-DC power converter using a novel lossless commutation cell for high switching frequency and high power operation is presented, which consists of a main switch and an auxiliary switch, with ZVS (zero voltage switched) and ZCS (zero current switched) switching characteristics, respectively.
Journal ArticleDOI
A quadratic buck converter with lossless commutation
TL;DR: A buck pulsewidth modulation converter, where the DC voltage conversion ratio has a quadratic dependence on duty cycle, providing a large step-down, and soft switching is attained by introducing two resonant networks, providing highly efficient operating conditions for a wide load range at high switching frequency.
References
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Journal ArticleDOI
High-frequency quasi-resonant converter technologies
TL;DR: In this article, a host of new quasi-resonant converters (QRCs) are derived from conventional PWM converters, with a significant improvement in performance and power density.
Journal ArticleDOI
Buck quasi-resonant converter operating at constant frequency: analysis, design and experimentation
TL;DR: In this article, a buck frequency-modulated zero-current switching quasi-resonant converter (buck PWM ZCS QRC) operating at constant frequency is discussed.
Proceedings ArticleDOI
An optimum ZVS-PWM DC-to-DC converter family: analysis, simulation and experimental results
TL;DR: In this paper, the authors considered a family of DC-to-DC power converters using the lossless commutation pulsewidth-modulation (PWM) source feeding resonant disconnecting circuit cell with resonant cycle interruption (LC-PWM-SF-RDC) to overcome the problems present in quasi-resonant converters.
Proceedings ArticleDOI
Two new lossless commutation pulse-width modulated cells using resonant disconnecting circuit and the corresponding families of DC-to-DC converters
TL;DR: In this paper, lossless commutation pulsewidth modulated DC-to-DC converters using resonant disconnecting circuit (LC-PWM-RDC) cells are discussed.
Proceedings ArticleDOI
The family of DC-to-DC converters using the LC-PWM-RDC cell without resonant cycle interruption: analysis simulation and experimental results
TL;DR: In this paper, a family of lossless commutation pulsewidth-modulated DC-to-DC converters using a resonant disconnecting circuit (LC-PWM-RDC) cell without resonant cycle interruption is presented.