Results 261 to 270 of about 66,884 (302)

Zero current switching Type Class DE rectifier

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
This paper introduces a zero current switching (ZCS) type Class DE rectifier, along with design procedure, simulation and experimental results. The feature of ZCS type Class DE rectifier is that the diodes maintain ZCS and zero current derivative switching (ZCDS), therefore, switching losses and switching noise are reduced.
Tsukasa Misawa, Kazuaki Fukui, Hirotaka Koizumi   +2 more
openaire   +1 more source

A family of zero-current-switching (ZCS) PWM converters using a new zero-current switching auxiliary circuit

The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003., 2004
A new family of zero-current-switching (ZCS) pulsewidth-modulated (PWM) converters which uses a new ZCS PWM switch cell is presented in this paper. The main switch and auxiliary switch operate at zero-current-switching turn on and turn off, and the all passive semiconductor devices in the ZCS-PWM converter operate at zero-voltage-switching (ZVS) turn ...
null Chien-Ming Wang, null Huang-Jen Chiu   +1 more
openaire   +1 more source

Zero-current zero-voltage switching for on-load tap changers

5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010), 2010
We present a new on-load tap changer (OLTC) design that provides the traditional advantages of the semiconductor-assisted OLTC over the classic, mechanical OLTC. The design provides zero-current, zero-voltage operation of both diverter switches at all times, eliminating contact wear due to arcing.
D.J. Rogers, T.C. Green
openaire   +1 more source

Zero-voltage and zero-current soft-switching PWM inverter

2005 European Conference on Power Electronics and Applications, 2005
This paper presents a zero-voltage and zero-current soft-switching (ZVZCS) PWM three phase inverter with a single auxiliary resonant commutation cell. All of the main switches in the three-phase inverter side can be turned on and turned off under zero-voltage and zero-current condition. The operating principle of proposed commutation cell is described,
E. Hiraki, T. Tanaka, M. Nakaoka
openaire   +1 more source

A ZERO-CURRENT SWITCHING PWM FLYBACK CONVERTER WITH LOW CURRENT STRESS

Journal of Circuits, Systems and Computers, 2008
An actively current clamped zero-current switching (ZCS) flyback converter is proposed in this paper. ZCS condition is obtained for all transistors for reducing switching loss and electromagnetic interference. With the current clamping technique, current stress of the converter is low.
Y. P. Benny Yeung, Herbert H. C. Iu
openaire   +1 more source

A Novel Zero-Voltage and Zero-Current-Switching Full-Bridge PWM Converter

IEEE Transactions on Power Electronics, 2004
A novel zero-voltage and zero-current-switching (ZVZCS) full-bridge pulse-width modulation converter is proposed. The ZCS condition of the lagging-leg is obtained by a simple secondary auxiliary circuit resetting the primary current during the freewheeling stage. The auxiliary circuit's capacitor is charged by the center tape of the secondary through a
null SongTingTing, null HuangNianci
openaire   +1 more source

New family of zero-current-switching PWM converters using a new zero-current-switching PWM auxiliary circuit

IEEE Transactions on Industrial Electronics, 2004
A new family of zero-current-switching (ZCS) pulsewidth-modulated (PWM) converters using a new ZCS-PWM auxiliary circuit is presented in this paper. The main switch and auxiliary switch operate at zero-current-switching turn on and turn off, and the all passive semiconductor devices in the ZCS-PWM converters operate at zero-voltage-switching (ZVS) turn
openaire   +1 more source

Zero-current-transition PWM DC–DC converters using new zero-current-switching PWM switch cell

IEE Proceedings - Electric Power Applications, 2006
A new family of zero-current-switching (ZCS) pulsewidth-modulated (PWM) converters, which uses a new ZCS PWM switch cell, is presented. The main switch and auxiliary switch operate at zero-current-switching turn-on and turn-off, and the all passive semiconductor devices in the ZCS-PWM converter operate at zero-voltage-switching turn-on and turn-off ...
C.-M. Wang, C.-H. Su, C.-W. Tao
openaire   +1 more source

A new zero-current-switching bridgeless PFC

2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC), 2010
This paper presents a new ZCS single phase bridgeless PFC which uses an auxiliary circuit for achieving zero current switching conditions for all switches of conventional bridgeless PFC. The input current is controlled by a peak current controller and output voltage is controlled with a limited band pi controller.
M. Ramezani, S. M. Madani
openaire   +1 more source

An improved HERIC inverter with zero-current-switching

2017 IEEE Electrical Power and Energy Conference (EPEC), 2017
In this paper, an improved HERIC inverter is proposed. It makes most switching devices operate at zero-current-switching state, by only adding auxiliary inductors on the freewheeling branch. Meanwhile, the dead-time is not required and the modulation of the system is simplified.
Jian Yang, Jingtao Xu, Peng Yang, Hui Wang, Mei Su, Mengtian Shen   +5 more
openaire   +1 more source