Title :
Voltage-follower control in zero-current-switched quasiresonant power factor preregulators
Author :
Sebastián, J. ; Martínez, J.A. ; Alonso, J. Marcos ; Cobos, Jose A.
Author_Institution :
Dept. Ing. Electrica, Oviedo Univ., Gijon, Spain
Abstract :
In this paper we propose to study the use of several zero-current-switched quasi-resonant converters (buck-boost, flyback, SEPIC, Cuk, boost and buck) with half-wave switch, working as power factor preregulators with voltage-follower control. The analysis carried out demonstrates that these converters show excellent characteristics to obtain a high power factor without using any input current feedback loop and also that they allow high switching frequency to operate because they integrate transformer and rectifier diode parasitics into the power topology
Keywords :
DC-DC power convertors; electric current control; feedback; power factor correction; resonant power convertors; switching circuits; voltage control; SEPIC converters; ZCS; boost converters; buck converters; buck-boost converters; flyback converters; half-wave switch; input current feedback loop; power factor preregulators; rectifier diode parasitics; transformer parasitics; voltage-follower control; zero-current-switched quasiresonant power factor preregulators; Diodes; Feedback loop; Reactive power; Rectifiers; Switches; Switching converters; Switching frequency; Topology; Voltage control; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2730-6
DOI :
10.1109/PESC.1995.474923
