Title :
Analysis and design of a flyback zero-current switched (ZCS) quasi-resonant (QR) AC/DC converter
Author :
Karveis, G.A. ; Manias, Stefanos N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
The flyback zero-current switched quasi-resonant AC/DC converter, functioning as a power factor correction regulator, is presented and analyzed in detail in this paper. Only one active switch with simple control logic is required to achieve both input current waveshaping and output voltage regulation. The investigation of voltages and currents in the converter is followed by simulation and leads to a design example in order to verify the theoretical results. Finally, an experimental unit of 120 W was built, which confirmed the analysis and simulated results
Keywords :
AC-DC power convertors; power factor correction; resonant power convertors; switching circuits; voltage control; 120 W; ZCS; active switch; control logic; flyback zero-current switched quasi-resonant AC/DC converter; input current waveshaping; output voltage regulation; power factor correction regulator; Analog-digital conversion; DC-DC power converters; Inductors; Magnetic resonance; Magnetic switching; Semiconductor diodes; Switches; Switching converters; Voltage; Zero current switching;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548623
