A Novel High Efficiency Power Factor Correction Converter with Soft Switching

Conference: Intelec '05 - Telecommunications Conference - 27th International Telecommunication Energy Conference
09/18/2005 - 09/22/2005 at Berlin, Germany

Proceedings: Intelec '05 - Telecommunications Conference

Pages: 6Language: englishTyp: PDF

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Ye, Xin; Wu, Xinke; Qian, Zhaoming (College of electrical engineering, Zhejiang University, Hangzhou, PR China 310027)

A novel single-phase rectifier is introduced in this paper, which consists of a front-end full-bridge diode rectifier followed by a ZVS Boost Active Clamping converter. By using an auxiliary switch and a capacitor, ZVS for all switches is achieved without any additional magnetic component. To eliminate the voltage ringing across the main rectifier diode, a small diode is added. Applying the proposed concept to a 500W/108kHz PFC prototype for universal line application, the efficiency can reach 92.7% at 90V input with full load.