Study on a Novel Single-Stage QR PFC Converter
A novel quasi-resonant single-stage single-switch PFC flyback converter is analyzed. By the additional winding, power factor correction can be achieved, and the topology can be simplified. The circuit can work in quasi-resonant mode, so the switching loss is reduced. By means of digital frequency reduction, the efficiency of the converter is improved further.
Jianzhong Wang and Jingang Qi
X. Y. Hou "Study on a Novel Single-Stage QR PFC Converter", Advanced Materials Research, Vols. 299-300, pp. 860-865, 2011