Title :
Design and analysis of a hysteretic boost power factor correction circuit
Author :
Zhou, Chen ; Ridley, Raymond B. ; Lee, Fred C.
Author_Institution :
Dept. of Electr. Eng., Virginia Polytech, Inst. & State Univ., Blacksburg, VA, USA
Abstract :
The design of an active unity power factor correction circuit with variable-hysteresis control for off-line switching power supplies is described. Design equations relating the boost indicator current ripple to the boost inductor selection and circuit performances are developed and verified with measurements. A computer-aided design program to select the optimal circuit components is developed. Design guidelines for the low-frequency feedback network are presented using the switch model for the power factor correction circuit. Small-signal transfer functions for open and closed-loop responses are derived.<>
Keywords :
CAD; power engineering computing; power factor correction; switched mode power supplies; LF feedback network; active unity power factor; boost indicator current ripple; boost inductor selection; closed-loop responses; computer-aided design; hysteretic boost power factor correction circuit; off-line switching power supplies; open-loop responses; variable-hysteresis control; Current measurement; Design automation; Equations; Hysteresis; Inductors; Performance evaluation; Power factor correction; Power supplies; Switches; Switching circuits;
Conference_Titel :
Power Electronics Specialists Conference, 1990. PESC '90 Record., 21st Annual IEEE
Conference_Location :
San Antonio, TX, USA
DOI :
10.1109/PESC.1990.131271
