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Advanced full bridge type delta-sigma modulated pulse space modulation PFC converter introducing current limiting scheme

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3 Author(s)
Nagai, S. ; Electr. Eng., Tsuyama Nat. College of Technol., Japan ; Hirota, A. ; Nakaoka, M.

This paper proposes an advanced delta-sigma modulated power factor correction (PFC) converter. The proposed circuit introduces pulse space modulation technique for a full bridge converter and can regulate input current as a sinusoidal wave together with high power factor operation. Also, because the proposed circuit has the feature of noise shaping characteristics, the circuit can reduce low frequency harmonics that are difficult to reduce by using conventional PWM modulation. Furthermore, introducing current limiting scheme, the proposed circuit can reduce switching device rating.

Published in:

Power Electronics and Drive Systems, 2003. PEDS 2003. The Fifth International Conference on  (Volume:2 )

Date of Conference:

17-20 Nov. 2003