[1] Zhang Fanghua, Wang Huizhen, Yan Yangguang,. ZCT Scheme of Push-Pull Forward Converter [J]. Journal of Southeast University (English Edition), 2002, 18 (4): 331-335. [doi:10.3969/j.issn.1003-7985.2002.04.009]

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

18

Issue:

2002 4

Page:

331-335

Research Field:

Electrical Engineering

Publishing date:

2002-12-30

Info

Title:

ZCT Scheme of Push-Pull Forward Converter

Author(s):

Zhang Fanghua;  Wang Huizhen;  Yan Yangguang

College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Keywords:

converter/ZCT converter;  ZCS/ZCT;  push-pull/push-pull forward

PACS:

TM46

DOI:

10.3969/j.issn.1003-7985.2002.04.009

Abstract:

The paper proposes a novel zero-current-transition(ZCT)push-pull forward converter. The auxiliary resonant cell is in parallel with the main circuit and the zero-current-switching(ZCS)range of the main and the auxiliary switches of the proposed converter are entirely achieved. The resonant capacitor achieves high voltage by operating the auxiliary cell. The auxiliary switch turns on before the main switches turn off, the high voltage of resonant capacitor blanks off the rectifier, and then the current of the secondary windings and the primary windings reaches zero. The operation principle of the new ZCT technique is detailed. And the key parameters to realize ZCS are calculated. The simulation and experiment reveal that the above scheme is feasible. A family of ZCT circuit in isolated converters can be developed by the same principle.

References:

[1] Zhou Xingsheng, Chen Dan, Jamerson C. Leading-edge modulation voltage-mode control with flux unbalance correction for push-pull converter[A]. In: Proc of IEEE APEC 2000[C]. NJ, USA, 2000. 327-333.
[2] Zhang Fanghua, Wang Huizhen, Yan Yangguang. Study and verification of a novel push-pull forward converter[J]. Journal of Nanjing University of Aeronautics and Astronautics, 2002, 34(5):451-455.(in Chinese)
[3] Zhou Xunwei, Yang Bo, Luca Amoroso, et al. A novel high-input-voltage, high efficiency and fast transient voltage regulator module-the push-pull forward converter[A]. In: Proc of IEEE APEC’99[C]. NJ, USA, 1999.279-283.
[4] Barbi I, Bolacell J C, Martins D C, et al. Buck quasi-resonant converter operating at constant frequency: analysis, design and experimentation [A]. In: IEEE PESC Rec[C]. New York, USA, 1989. 873-880.
[5] Ivensky G, Sidi D, Ben-Yaakov S. A soft switcher optimized for IGBTs in PWM topologies [A].In: IEEE APEC’95 Rec[C]. New York, USA, 1995. 900-906.
[6] Hua G, Leu C S, Jiang Y M, et al. Novel zero-voltage-transition PWM converters[J]. In: Proc of IEEE PESC’92[C]. New York, USA, 1992.55-61.
[7] Canesin C A, Barbi I. Novel zero-current-switching PWM converters [J]. IEEE Trans on Industrial Electronics, 1997, 44(3): 372-381.
[8] Wakabayashi F T, Bonato M J, Canesin C A. A new family of zero-current-switching PWM converter[A]. In: IEEE PESC’99 Rec[C]. NJ, USA, 1999.451-456.
[9] Lee Min-Kwang, Lee Dong-Yun, Hyun Dong-Seok. New zero-current-transition PWM DC/DC converters without current stress [A]. In: Proc of IEEE PESC’2001[C]. NJ, USA, 2001.1069-1074.
[10] Ruan Xinbo, Yan Yangguang. Soft-switching technique of DC-DC converter[M].Beijing:Science Press, 2000. 118-135.(in Chinese)

Memo

Memo:

* Born in 1976, male, graduate.

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