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Proceedings ArticleDOI

Zero voltage switching approach for flyback converter

K. Yoshida, +2 more
- pp 324-329
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TLDR
In this paper, a zero voltage switched flyback power converter which realizes soft switching for every semiconductor is proposed, where the sinusoidal resonant current flows through the secondary side rectifier diode and zero current switching of the diode is realized.
Abstract: 
A zero voltage switched flyback power converter which realizes soft switching for every semiconductor is proposed. The sinusoidal resonant current flows through the secondary side rectifier diode and zero current switching of the diode is realized. Diode recovery is not generated. The proposed converter can operate with constant frequency pulse width modulation. High frequency switching and low noise are achieved. >

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Citations
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Journal ArticleDOI

Utilization of an active-clamp circuit to achieve soft switching in flyback converters

R. Watson, +2 more
TL;DR: In this paper, the behavior of the ZVS active-clamp flyback operating with unidirectional magnetizing current is analyzed and design equations based on this analysis are presented.
Patent

High efficiency power converter

Martin F. Schlecht
TL;DR: In this article, a power converter nearly losslessly delivers energy and recovers energy from capacitors associated with controlled rectifiers in a secondary winding circuit, each controlled rectifier having a parallel uncontrolled rectifier.
Patent

Controller for high efficiency resonant switching converters

Mark Telefus, +2 more
TL;DR: In this paper, a DC to DC flyback converter topology with one or more transformers and a primary side resonant subcircuit is optimally controlled by providing independently derived duty cycles for driving the main transformer and resonant semiconductor switches to prevent cross-conduction thereof and minimize reverse recovery losses.
Proceedings ArticleDOI

The forward converter: from the classic to the contemporary

F.D. Tan
TL;DR: The evolution of the forward power converter from the classic to the contemporary is discussed in this article, where the authors present a tutorial for the design guidelines for forward power converters, including operating principle, voltage conversion ratio, efficiency, device stresses, small-signal dynamics, noise and EMI and parts count.
Patent

Interleaved continuous flyback power converter system

David A. Cross
TL;DR: In this article, an interleaved flyback electrical power converter system with a plurality of flyback power converters operated in continuous mode, each converter utilizing a power switch operated under zero voltage switching conditions is presented.
References
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Journal ArticleDOI

Zero-voltage-switching multi-resonant technique-a novel approach to improve performance of high frequency quasi-resonant converters

W.A. Tabisz, +1 more
TL;DR: In this paper, a novel multiresonant switch concept is proposed to overcome the parasitic oscillations caused by the junction capacitance of the rectifying diode, which results in favorable switching conditions for all devices.
Proceedings ArticleDOI

Zero-voltage-switching multi-resonant technique-a novel approach to improve performance of high frequency quasi-resonant converters

Tabisz, +1 more
Proceedings ArticleDOI

DC analysis and design of zero-voltage-switched multi-resonant converters

W.A. Tabisz, +1 more
TL;DR: In this paper, a simple, generalized analysis of ZVS MRCs is presented using the resonant switch concept, and a design procedure that optimizes the selection of resonant elements for maximum conversion efficiency is proposed.
Proceedings ArticleDOI

Zero-voltage-switching realized by magnetizing current of transformer in push-pull current-fed DC-DC converter

Masahito Shoyama, +1 more
TL;DR: In this paper, a push-pull current-fed DC-DC converter with two synchronous rectifiers in the secondary circuit is presented, where the output voltage is controlled by PWM (pulsewidth modulation) with a constant switching frequency.
Proceedings ArticleDOI

Zero-voltage-switching realized by magnetizing current of transformer in push-pull DC-DC converter

Masahito Shoyama, +1 more
TL;DR: In this article, a zero-voltage-switched (ZVS) push-pull DC-DC power converter with two synchronous rectifiers in the secondary circuit is presented.