Results 101 to 110 of about 266 (133)

Improvements to the passive lossless snubbers for power bridge legs

Journal of Electronics (China), 2001
The paper considers three common snubber circuits used on gate turn-off thyristor and/or insulated gate bipolar transistor inverters. The three snubbers are passive lossless circuits for power bridge legs, and the improvements and modifications to these snubber circuits are presented.
Xiangning He, Yuwen Yang, Zhaoming Qian, Barry W. Williams, Stephen J. Finney   +4 more
openaire   +1 more source

Multi-output auxiliary power supply with lossless snubber

2011 6th IEEE Conference on Industrial Electronics and Applications, 2011
A multi-output auxiliary power supply realized by a flyback converter is presented for providing the needed low power supplied for the control circuits and driving circuits in power processing systems. In the proposed circuit topology, lossless snubbers are introduced into the flyback converter to recover energy trapped in leakage inductor of ...
G.-K. Chang, S.-Y. Fan, S.-Y. Tseng
openaire   +1 more source

Soft‐Switching Interleaved PFC Converter with Lossless Snubber

Electrical Engineering in Japan, 2016
SUMMARYThis paper describes a soft‐switching interleaved power factor correction (PFC) converter with a lossless snubber. AC–DC converters require a unity input power factor characteristic with highly efficient operation to prevent the inflow of harmonic current to the power source.
ITARU ANDO, KODAI ABE, TOMOAKI NAKAMURA, YUSHI ARAKI, KIYOSHI OHNISHI   +4 more
openaire   +1 more source

Soft-Switching Bidirectional Buck/Boost Converter With a Lossless Passive Snubber

IEEE Transactions on Industrial Electronics, 2020
This article introduces a new lossless passive snubber for the bidirectional buck/boost converter. The proposed snubber comprises a low number of passive components which jointly contribute to achieve soft switching condition at both the buck and boost operations of the converter.
Mohammad Reza Mohammadi, Hosein Farzanehfard, Ehsan Adib   +2 more
openaire   +1 more source

An improved passive lossless turn-on and turn-off snubber

Proceedings Eighth Annual Applied Power Electronics Conference and Exposition,, 2002
An improved passive lossless turn on/off snubber is proposed, where energy trapped in the snubber is transferred to both the DC rail and the load. A wider operational range of load current, a higher switching frequency and lower peak switch current make this circuit more practical than conventional lossless snubbers. Design equations, simulations based
X. He, S.J. Finney, B.W. Williams, T.C. Green   +3 more
openaire   +1 more source

Soft-switching-interleaved power factor correction converter with lossless snubber

IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
This paper describes a soft-switching-interleaved power factor correction (PFC) converter. The proposed PFC converter reduces the input-current ripple by using an interleave-control method and realizes high efficiency through the soft-switching operation of all switching devices, without requiring a large auxiliary resonant circuit. In order to confirm
Itaru Ando, Kodai Abe, Masashi Ochiai, Kiyoshi Ohishi   +3 more
openaire   +1 more source

A passive lossless snubber cell for nonisolated PWM DC/DC converters

IEEE Transactions on Industrial Electronics, 1998
A passive lossless snubber cell is proposed to improve the turn-on and turnoff transients of the MOSFETs in nonisolated pulsewidth modulated (PWM) DC/DC converters. Switching losses and EMI noise are reduced by restricting di/dt of the reverse-recovery current and dv/dt of the drain-source voltage.
Tseng, Ching-Jung, Chen, Chern-Lin
openaire   +1 more source

A boost converter with lossless snubber under minimum voltage stress

APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), 2003
A passive lossless turn-on/turn-off snubber network is proposed for the boost PWM converter. Besides the benefit of small number of added components, all the devices block the voltage no more than the output DC voltage. The operation principle and design guideline is presented.
null Wei Dong, null Qun Zhao, null Jinjun Liu, F.C. Lee   +3 more
openaire   +1 more source

A novel passive lossless snubber for high power multilevel inverters

APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), 2003
A novel passive lossless snubber circuit for multilevel inverters is proposed in the paper. The topology of it is simple and requires no extra control. In order to reduce the high voltage stress on power switches of multilevel inverters with the proposed snubber circuit, an improved snubber circuit is presented by adding separate low-power DC sources ...
null Hongyang Wu, null Yan Deng, null Rongxiang Zhao, null Xiangning He   +3 more
openaire   +1 more source

Active-Clamp Forward Converter With Lossless-Snubber on Secondary-Side

IEEE Transactions on Power Electronics, 2019
This paper proposes a novel active-clamp forward converter (ACFC) with a lossless-snubber on the secondary-side, which combines a resonant capacitor and a clamping diode with an output inductor in parallel. The conventional ACFC achieves zero-voltage-switching on switches of the primary-side during dead time for reducing the switching loss and voltage ...
Jing-Yuan Lin, Sih-Yi Lee, Chung-Yi Ting, Fu-Ciao Syu   +3 more
openaire   +2 more sources