Title :
A novel high-efficiency flyback power-factor-correction circuit with regenerative clamping and soft switching
Author :
Siu, Kam-Wah ; Lee, Yim-Shu
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytecg. Univ., Kowloon, Hong Kong
fDate :
3/1/2000 12:00:00 AM
Abstract :
Although most power factor correction (PFC) circuits use the boost topology, the flyback topology does have the advantages of input-output isolation, inrush current limiting and voltage step-down capability. In this paper, the problems associated with flyback PFC circuits are identified. These problems are solved by using a novel regenerative clamping circuit. The circuit topology, analysis, design considerations and experimental results of the new flyback PFC circuit are presented
Keywords :
DC-DC power convertors; power factor correction; switching circuits; design considerations; flyback PFC circuits; flyback topology; input-output isolation; inrush current limiting; power-factor-correction circuit; regenerative clamping; soft switching; voltage step-down capability; Circuit topology; Clamps; Inductance; Magnetic circuits; Power factor correction; Power transformers; Semiconductor diodes; Switches; Switching circuits; Switching converters;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
