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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2001, Vol. 2 Issue (2): 170-173    DOI: 10.1631/jzus.2001.0170
Science & Engineering     
A NOVEL TOPOLOGY FOR RIPPLE-FREE INPUTTING CURRENT TECHNIQUES
LU Zheng-yu, CHEN Guo-zhu, QIAN Zhao-ming, QIAN Ting
Electrical Institute of Zhejiang University, Hangzhou 310027, China
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Abstract  A novel topology for ripple-free input current circuit is put forward in the paper. Compared to traditional EMI(electromagnetic interference) filter consisting of choke and capacitor, the ripple-free topology can reduce the converter\'s ripple current with the use of smaller component. The new ripple-free topology proposed in this paper does not need elaborate adjustment of the coupling coefficient as required by conventional ripple-free techniques, and is ripple voltage cancellation or isolation mode, which can attenuate the ripple further if the line impedance is considered. The theoretical prediction is confirmed by experimental results.

Key words： EMI      input current      ripple free converter(TN86)     
Received: 06 July 2000     
CLC:  TM714  
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CHEN Guo-zhu
LU Zheng-yu
QIAN Zhao-ming
QIAN Ting
Cite this article:

LU Zheng-yu, CHEN Guo-zhu, QIAN Zhao-ming, QIAN Ting. A NOVEL TOPOLOGY FOR RIPPLE-FREE INPUTTING CURRENT TECHNIQUES. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2001, 2(2): 170-173.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2001.0170     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2001/V2/I2/170

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