1-kW PFC converter with compound active-clamping

Author

Feng, Bo ; Xu, Dehong

Author_Institution

Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China

Volume

20

Issue

2

fYear

2005

fDate

3/1/2005 12:00:00 AM

Firstpage

324

Lastpage

331

Abstract

A PFC converter employing compound active clamping technique is proposed. It can effectively reduce the loss caused by diode reverse recovery. Both the main switch and the auxiliary switch can achieve soft-switching (ZVS) under certain conditions. The parasitic oscillation caused by the parasitic capacitance of the boost diode is eliminated. The voltage on the main switch, the auxiliary switch and the boost diode are clamped. The principle of operation and theoretical analysis are presented. The maximum voltage stress of switches and the soft-switching region with relation to the resonant inductor and resonant capacitance are investigated. A prototype of 1kW is built to test the proposed topology. The input voltage is from 90V_rms to 265V_rms. The output voltage is 380V. The operation frequency is 100 kHz. The measured efficiency at full load with different input voltage is from 93.5% to 97.8%.

Keywords

capacitance; diodes; inductors; power factor correction; resonant power convertors; switching convertors; zero voltage switching; 1 kW; 100 kHz; 380 V; 90 to 265 V; 93.5 to 97.8 percent; PFC converter; ZVS; auxiliary switch; boost diode; compound active-clamping; diode reverse recovery; efficiency measurement; parasitic capacitance; resonant capacitance; resonant inductor; Clamps; Diodes; Inductors; Parasitic capacitance; Prototypes; Resonance; Stress; Switches; Testing; Zero voltage switching; Continuous-conduction-mode (CCM); PFC converter; distributed power systems (DPS);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2004.843005

Filename

1407997