Results 241 to 250 of about 8,288,511 (300)

Zero-Current-Switching Buck Converter

2019 International Conference on Electrical Drives & Power Electronics (EDPE), 2019
A zero current switching (ZCS) buck converter is presented. Due to ZCS, the switching losses of the converter are minimized. The converter passes through four modes. The modes of operation are explained by mathematical description and with the help of the phasor u-Zi diagram. The dimensioning of the devices is explained. The control of the converter is
Felix A. Himmelstoss, Michael Jungmayer
openaire   +1 more source

A new zero-current-switching constant switching frequency boost converter

1993 IEEE International Symposium on Circuits and Systems, 2002
The authors present a new boost topology which can be operated in constant switching frequency and zero-current-switching. In addition, the voltage stresses on the active switches are as low as the traditional boost pulse width modulated (PWM) converter. The control curves are derived through the normalized state-plane trajectory.
L. Yang, D. Long, Y. Zhang, C. Q. Lee
openaire   +2 more sources

Zero-voltage transition–zero-current transition pulsewidth modulation DC–DC buck converter with zero-voltage switching–zero-current switching auxiliary circuit

IET Power Electronics, 2012
In this study, a new zero-voltage transition (ZVT)-zero-current transition (ZCT) quasi-resonant buck converter, which ensures zero crossings at any time required for soft switching (SS) and provides ZVT turn-on and ZCT turn-off together for the main ...
Satilmiş Ürgün
exaly   +2 more sources

A new zero current switching resonant Buck converter

2011 24th Canadian Conference on Electrical and Computer Engineering(CCECE), 2011
In this paper a zero current switching resonant Buck converter as a soft-switching DC-DC converter is presented In this buck type converter, all semiconductor elements are soft switched. Also, the converter benefits from a very simple control method. Theoretical equations are derived and confirmed through simulation results.
A. Emrani, Hosein Farzanehfard
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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 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

Novel zero-current-switching-zero-voltage-switching converters

PESC Record. 27th Annual IEEE Power Electronics Specialists Conference, 2002
A new family of zero-current-switching-zero-voltage-switching (ZCSZVS) pulse-width-modulation (PWM) converters are proposed. With the proposed ZCSZVS concept, the PSPICE simulation results of the application to a single-switch three-phase PFC rectifier have been obtained and compared with those of hard-switching and ZCT applications in order to show ...
R.L. Lin, F.C. Lee
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

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 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