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Journal of Zhejiang University SCIENCE A 2002 Vol.3 No.1 P.77~81


Average modeling of Single Stage Flyback PFC+Flyback DC/DC converter

Author(s):  SHEN Miao-sen, KANG Wan-ying, QIAN Zhao-ming

Affiliation(s):  Power Electronics Research Institute, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   qian@cee.zju.edu.cn

Key Words:  average model, power factor correction, single stage

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SHEN Miao-sen, KANG Wan-ying, QIAN Zhao-ming. Average modeling of Single Stage Flyback PFC+Flyback DC/DC converter[J]. Journal of Zhejiang University Science A, 2002, 3(1): 77~81.

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T1 - Average modeling of Single Stage Flyback PFC+Flyback DC/DC converter
A1 - SHEN Miao-sen
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A1 - QIAN Zhao-ming
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With the use of this novel average model for single stage Flyback PFC+Flyback DC/DC converter, voltage control mode, peak current control mode and average current control mode can be simulated easily by changing the model's parameters. It can be used to do various analysis not only for small signal and static behavior but also for large signal and dynamic behavior of the converter. By using this average model the simulation speed can be improved by 2 orders of magnitude above that obtained by using the conventional switched model. It can be applied to optimize the trade-off between high power factor, voltage stress, current stress and good output performance while designing this kind of single stage PFC converter. A 60W single stage power factor corrector was built to verify the proposed model. The modeling principle can be applied to other single stage PFC topologies.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


[1] Qian,J., 1997. Advanced single-stage power factor correction techniques. Ph. D. Dissertation, Virginia Polytechnic Institute and State University.

[2] Qian,J., Lee,F.C., 1997. A high efficient single-stage single-switch high power factor AC/DC converter with universal line input. IEEE APEC Conf. Record. p.281-287.

[3] Redl,R., Balogh,L., 1995. Design consideration for single stage isolated power factor corrected power supplies with fast regulation of output voltage. IEEE PESC Conf. Record. p. 454-458.

[4] Ren, Y.C., Qian, Z.M., Ruan,K., 2000. A novel unified average model for single switch DC/DC converter. IEEE APEC Conf. Record. p.263-268.

[5] Schenk,K, Cuk,S., 1997. A single-switch single-stage active power factor corrector with high quality input and output. IEEE PESC Conf. Record. p.385-391.

[6] Sun,J., Wu, W.C., Richard M.Bass, 1999. Large-signal characterization of single phase PFC circuits with different types of current control. IEEE APEC Conf. Record. p.655-661.

[7] Zhu,G., Wei,H., 1998. Small signal modeling of a single-switch AC/DC power factor correction circuit. IEEE PESC Conf. Record. p.601-607.

Open peer comments: Debate/Discuss/Question/Opinion



2010-12-03 15:43:41

Thanks. I have got my idea from this paper.

theo zijlman<tgzijlman@zonnet.nl>

2010-11-22 18:51:57

Using for priate purposes


2010-07-14 01:01:47

The paper is very practical for me. Thank you.

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