Title :
Single-switch fast-response switching regulators with unity power factor
Author :
Lee, Y.S. ; Siu, K.W.
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech. Univ., Kowloon, Hong Kong
Abstract :
Based on the example of a single-stage isolated power-factor-corrected power supply (SSIPP or S2IP2) employing a boost power factor correction (PFC) cell, the relationship between the input line voltage and line current of such switching regulators is studied. The conditions for unity power factor are identified. A control scheme to achieve a power factor up to unity is proposed. Computer simulations indicate that such a scheme is both effective and feasible
Keywords :
circuit analysis computing; harmonic distortion; power engineering computing; power factor correction; power system harmonics; switched mode power supplies; switching circuits; voltage regulators; IEC harmonics standards; SMPS; boost power factor correction cell; computer simulation; input line current; input line voltage; power convertor; switching regulators; unity power factor; Circuits; Computer simulation; Output feedback; Power engineering and energy; Power supplies; Power system harmonics; Reactive power; Regulators; Switches; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1996. APEC '96. Conference Proceedings 1996., Eleventh Annual
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-3044-7
DOI :
10.1109/APEC.1996.500530
