Title :
A new soft recovery pulse width modulation quasi-resonant converter with multiple order valley-fill network
Author :
Chung, Jin-Kuk ; Chae, Gyun ; Hyeong, Gyu
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
A new soft recovery (SR) quasi-resonant converter (QRC) having a multiple order valley fill network is introduced. It is combined with a normal quasi-resonant converter with a valley fill network of which the surrounding components are composed of diodes and capacitors. The reverse recovery loss of the main rectifier diode is eliminated by this method utilizing multiple resonance. The proposed converter has PWM capability with high efficiency and is suitable for high voltage and high power applications. By extension of this concept to other switching converters, a new family of SR PWM QRC can be shown
Keywords :
PWM power convertors; resonant power convertors; switching circuits; PWM converter; capacitors; diodes; main rectifier diode; multiple order valley-fill network; multiple resonance; quasi resonant converter; reverse recovery loss; soft recovery pulse width modulation quasi-resonant converter; valley fill network; Diodes; Power generation; Pulse width modulation; Pulse width modulation converters; Rectifiers; Resonance; Strontium; Switches; Switching converters; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.785581
