Results 251 to 260 of about 530,026 (287)

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

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

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

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-switching switched-capacitorconverters

IEE Proceedings - Electric Power Applications, 2001
The paper presents a family of zero-current-switching switched-capacitor circuits based on the classical multiswitch switched-capacitor converters. The family of circuits consists of three topologies and provides different voltage conversion ratios. All the power devices including switches and diodes in the circuit are zero-current switching.
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

Novel zero-current-switching (ZCS) PWM converters

IEE Proceedings - Electric Power Applications, 2005
A new family of zero-current-switching (ZCS) pulse-width-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 ...
C.-M. Wang, H.-J. Chiu, D.-R. Chen
openaire   +1 more source

Zero-current-switching PWM dc/dc converters

38th Midwest Symposium on Circuits and Systems. Proceedings, 2002
An existing idea for a ZCS quasi-resonant converter was extended to generate families of zero-current-switching PWM dc/dc converters. The converter output voltage is regulated by controlling turn on of the auxiliary switch while both main and auxiliary switches maintain the ZCS and/or ZVS condition during the constant frequency operation.
E.R.C. da Silva, U. de Valois, T.O. Meneses   +2 more
openaire   +1 more source

Zero Current Synchronization of Opening Switch Contacts

IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1986
Thermostatic controls switching ac loads at 220 V, 50 Hz consist of a slowly moving thermally activated prime mover operating randomly on a small snap-action switch. An experimental study on the opening characteristic of the snap-action switch has shown that the point on the current wave at which contact separation occurs becomes nonrandom on its ...
P. White, D. Mapps, G. Rossi
openaire   +1 more source

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