Results 311 to 320 of about 194,297 (358)

Zero-voltage switching in switched current circuits

Proceedings of IEEE International Symposium on Circuits and Systems - ISCAS '94, 2002
Traditionally the accuracy of switched-current circuits has been much lower than that of switched-capacitor circuits. To address this problem, an accurate high-speed switched-current sample-and-hold technique based on zero-voltage switching is presented.
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Zero-voltage-switched interleaved flyback converter

INTELEC 2009 - 31st International Telecommunications Energy Conference, 2009
This paper proposes an interleaved flyback converter which is remarked with zero-voltage-switched active switches and reduced reverse recovery loss on the rectifying diodes. The configuration is composed of two identical flyback converters and an auxiliary inductor shunted between the diodes.
Yao-Ching Hsieh, Ming-Ren Chen, Hung-Liang Cheng   +2 more
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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
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Charge control for zero-voltage-switching multiresonant converter

IEEE Transactions on Power Electronics, 1996
The operation of zero-voltage-switching multi-resonant power converters (ZVSMRCs) limits the use of peak current-mode control. The charge control technique is found applicable to ZVSMRCs for improving dynamic performance. Charge control compares the total charge of the switch current to the control voltage to modulate the switching frequency. Since the
W. Tang, C.S. Leu, F.C. Lee
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Single-switch DC-DC converter with zero-voltage-switching and clamped voltage

Proceedings of IEEE Power Electronics Specialist Conference - PESC '93, 2002
Single-switch DC-DC power converters with zero-voltage-switching and clamped voltage (ZVS-CV) are presented. To construct such converters, a switch cell, which consists of the basic PWM (pulse-width modulation) switch cell and an additional commutation inductor circuit, is proposed.
T. Mizoguchi, T. Ninomiya, T. Ohgai, K. Harada   +3 more
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A new zero-voltage switching DC/DC boost converter

IEEE Transactions on Aerospace and Electronic Systems, 1993
A pulsewidth-modulated (PWM) zero-voltage-switching quasi-resonant boost converter operating at constant switching frequency is presented. In contrast to the frequency-modulated (FM) zero-voltage-switching quasi-resonant boost converter, this converter possesses better controllability and higher operating performance, and overcomes the instability ...
Chan, CC, Chau, KT
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Zero voltage soft switching converter with high input voltage

[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91, 2002
High input voltage to a converter decreases its efficiency because turn-on loss of a main switch increases in proportion to the square of the input voltage. To decrease turn-on loss, the authors examined a zero-voltage-switched quasiresonant power converter. It causes severe voltage stress, which is about four or five times the input voltage, on a main
H. Haga, K. Ozu, Y. Kikuchi
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A zero-voltage transition boost converter using a zero-voltage switching auxiliary circuit

IEEE Transactions on Power Electronics, 2002
A soft switching boost converter with zero-voltage transition (ZVT) main switch using zero-voltage switching (ZVS) auxiliary switches is proposed. Various operating intervals of the converter are presented and analyzed. Design considerations are discussed.
R. Gurunathan, A.K.S. Bhat
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A simple zero-voltage-switching boost converter

Proceedings IEEE Southeastcon '98 'Engineering for a New Era', 2002
In this paper, a new type of PWM boost zero-voltage-switching converter is presented. The new soft-switching converter is formed by adding only two auxiliary components to a conventional boost converter, namely: an active switch and a resonant inductor. The voltage stresses on both the main and auxiliary switches are fixed at V/sub g/+V/sub o/ and they
Wei, Huai, Ioinovici, Adrian, Sutanto, Danny   +2 more
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Zero-voltage-switching converters with multi-resonant bipolar switch

Proceedings of IEEE Power Electronics Specialist Conference - PESC '93, 2002
Full-wave mode operation of zero-voltage-switched (ZVS) power converters may be losslessly implemented by splitting the resonant capacitor across both the active switch (MOSFET) and the series diode. By appropriately choosing the relative size of each capacitor, charge otherwise trapped inside the MOSFET output capacitance at turn-on may be ...
J.P. Gegner, C.Q. Lee
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