Results 141 to 150 of about 2,014,290 (201)

KY converter with zero voltage switching

2010 5th IEEE Conference on Industrial Electronics and Applications, 2010
In this paper, the soft switching technique is applied to the KY converter to upgrade the efficiency in the neighborhood of the rated load and hence enhance its capability in industrial applications. The details of soft switching of the KY converter are illustrated along with some simulated and experimental results to verify the effectiveness of the ...
K. I. Hwu, Y. T. Yau
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Zero-voltage-switching multi-resonant three-level converters

2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), 2004
This paper proposes a family of zero-voltage-switching multiresonant three-level converters (ZVS-MR-TLCs), which are derived by adding a ZVS-MR multiresonant network to the TLCs. The arrangement of a multiresonant network results in the absorption of all the major parasitic components in the resonant circuit, including the switch output capacitor ...
Ke Jin, Xinbo Ruan
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Analysis of a Zero-Voltage Switching Converter With Two Transformers

IEEE Transactions on Circuits and Systems II: Express Briefs, 2006
This brief presents an active-clamp zero-voltage switching converter. Two transformers connected in series are used, and each transformer can be operated as an inductor or a transformer. No output inductor is needed. An active-clamp circuit is used to recycle the energy stored in the transformer leakage.
Bor-Ren Lin, Huann-Keng Chiang, Chien-Chih Chen   +2 more
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A novel QRDCL circuit for zero voltage switched inverter

ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349), 2003
This paper presents an alternate quasi-resonant dc link (QRDCL) circuit for soft switched inverters which does not require paralleling of a charged capacitor with another charged capacitor or a voltage source. The circuit momentarily pulls down the DC link voltage to zero as commanded by the control circuit to facilitate zero voltage switching (ZVS) of
BAGEWADI, MD, FERNANDES, BG, SUBRAHMANYAM, RVS   +2 more
openaire   +3 more sources

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
openaire   +1 more source

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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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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GTO characterization for zero voltage switching applications

PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference, 2002
GTO applications limitations are investigated under hard and soft switching topologies as device output power and device switching frequency are simultaneously increased. Characterization test results and a P-Spice GTO model simulating device turn-off are used in the investigation.
G.L. Skibinski, D.M. Divan
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On the saturable inductor commutation for zero-voltage switching

21st Annual IEEE Conference on Power Electronics Specialists, 2002
A novel method of high frequency switching is presented, where a small saturable inductor is used for the zero-voltage switching. The saturated conditions of the inductor is satisfied by the use of a PWM (pulse width modulation) controller with a saturable core or by the use of a saturable transformer with current feedback. The switching losses and the
K. Harada, H. Sakamoto
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A zero voltage switching forward converter topology

Proceedings of Power and Energy Systems in Converging Markets, 2002
A zero voltage switching forward converter topology is presented in this paper. The topology employs an auxiliary circuit. Only a few small rating components and devices are added. The merits of the proposed topology include: lossless switching independent of the input and load conditions, simple control and power circuitry, and ability to operate in ...
Y. Xi, P.K. Jain, G. Joos, H. Jin
openaire   +1 more source