Average modeling of Single Stage Flyback PFC+Flyback DC/DC converter |
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| Authors: | Shen Miao-sen Kang Wan-ying Qian Zhao-ming |
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| Institution: | (1) Power Electronics Research Institute, Zhejiang University, 310027 Hangzhou, China |
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| Abstract: | With the use of this novel everage 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.
Project (No. 50077020) supponted by the National Natural Science Foundation of China. |
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| Keywords: | average model power factor correction single stage |
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