Results 261 to 270 of about 117,733 (307)

A new zero voltage and zero current power switching technique

20th Annual IEEE Power Electronics Specialists Conference, 1992
An outline is presented of work done by the authors on a novel converter topology where the power switching occurs at both zero current and zero voltage, giving it some major advantage over the present state of the art. A description is given of the application of this topology to both high and low-output-voltage converters.
A.H. Weinberg, L. Ghislanzoni
openaire   +1 more source

Analysis and implementation of a new zero current switching flyback inverter

International Journal of Circuit Theory and Applications, 2018
Summary In this paper, a novel zero current switching (ZCS) flyback inverter in discontinuous conduction mode (DCM) is proposed. In the proposed flyback inverter, the ZCS for the primary switch is achieved by adding a simple auxiliary circuit to the conventional flyback inverter.
Sajad Arab Ansari, Javad Shokrollahi Moghani, Mohammad Mohammadi 0003   +2 more
openaire   +1 more source

Switching losses of IGBTs under zero-voltage and zero-current switching

PESC Record. 27th Annual IEEE Power Electronics Specialists Conference, 2002
Turn-off switching losses of punch-through (PT) and nonpunch-through (NPT) IGBTs under hard switching (HS) and zero-voltage switching (ZVS) are presented and evaluated at 25/spl deg/C, 75/spl deg/C and 125/spl deg/C. A comparison between PT and NPT devices based on their internal device characteristics is given for HS and ZVS.
A. Elasser, M.J. Schutten, V. Vlatkovic, D.A. Torrey, M.H. Kheraluwala   +4 more
openaire   +1 more source

Zero-current-switching switched-capacitor bidirectional DC–DC converter

IEE Proceedings - Electric Power Applications, 2005
The proposed zero-current-switching switched-capacitor quasi-resonant DC-DC converter is a new type of bidirectional power flow control conversion scheme. It possesses the conventional features of resonant switched-capacitor converters: low weight, small volume, high efficiency, low EMI emission and current stress.
Y.-S. Lee, Y.-Y. Chiu
openaire   +1 more source

A family of zero current switching switched-capacitor dc-dc converters

2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2010
This paper presents a new zero current switching (ZCS) technique for a family of switched-capacitor dc-dc converters. Compared to the traditional ZCS switched-capacitor dc-dc converters by inserting a magnetic core in the circuit, these new ZCS switched-capacitor dc-dc converters employ the stray inductance present in the circuit as the resonant ...
Dong Cao, Fang Zheng Peng
openaire   +1 more source

Class-E zero-voltage-switching and zero-current-switching rectifiers

IEEE Transactions on Circuits and Systems, 1990
A number of class-E, half-wave and full-wave, zero-voltage-switching (low dv/dt), zero-current-switching (low di/dt), and mixed-mode rectifiers are introduced and verified experimentally. The rectifiers are derived from conventional rectifiers by adding reactive components.
M.K. Kazimierczuk, J. Jozwik
openaire   +1 more source

Zero-current switching switched-capacitor quasiresonant step-down converter

IEE Proceedings - Electric Power Applications, 2002
Current stress is usually high for conventional switched-capacitor converter circuits, because of short-circuiting when charging up the capacitors. In this paper, two zero-current switching switched-capacitor resonant step-down converter families are presented which can improve the current stress problem. They are able to provide 1/2 to 1/n, and -1 to -
Y.P.B. Yeung, K.W.E. Cheng, D. Sutanto, S.L. Ho   +3 more
openaire   +1 more source

A zero-current-switching multilevel switched capacitor DC-DC converter

2011 IEEE Energy Conversion Congress and Exposition, 2011
This paper introduces a zero-current-switching multilevel switched capacitor dc-dc converter for use in high voltage gain and high temperature applications. This circuit has a reduced charge path, low switch count and low device ratings compared to many similar topologies. Furthermore, switching losses and component size are greatly reduced.
Matthew L. Gebben, Jorge G. Cintron-Rivera, Wei Qian, Dong Cao, Xuejun Pei, Fang Zheng Peng   +5 more
openaire   +1 more source

A zero-current-switching PWM flyback converter with a simple auxiliary switch

IEEE Transactions on Power Electronics, 1999
A simple and effective approach of turning an isolated hard-switched converter design into a soft-switched one is presented. By adding an auxiliary winding, switch and small capacitor to the conventional pulsewidth modulation (PWM) isolated flyback converter, all switches and diodes are softly turned on and off. No extra active or passive voltage clamp
Wang, WH, Hui, SY, Chung, HSH
openaire   +3 more sources

Zero-voltage-switching/zero-current-switching soft-switching dual-resonant converter

International Journal of Electronics, 2010
A soft-switching converter with dual resonant structures is presented in this article. The dual resonant tanks are composed of the leakage inductors and resonant capacitors to achieve a zero-current-switching (ZCS) turn-off mechanism for diodes on the secondary side of the transformer. Moreover, the voltage stresses of power switches are clamped by the
Bor-Ren Lin, Jyun-Ji Chen
openaire   +1 more source