Title :
Bi-flyback single-stage PFC converter with valley switching technique
Author :
Qiu, Weihong ; Wu, Wenkai ; Rustom, Khalid ; Mao, Hong ; Batarseh, Issa
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA
Abstract :
Valley switching technique can reduce the turn-on switching losses in flyback topology by discharging the MOSFET capacitor before the switch is turned on. In this paper, valley switching technique is applied to single-stage power factor correction (PFC) converters to achieve improved performance. Detailed operation principle, simulation results and experimental data are included.
Keywords :
DC-DC power convertors; capacitors; losses; power MOSFET; power factor correction; switching circuits; 20 V; 90 W; DC-DC converter; MOSFET capacitor discharge; bi-flyback single-stage PFC converter; flyback topology; single-stage power factor correction converters; turn-on switching losses reduction; valley switching technique; Capacitors; Circuit topology; Costs; DC-DC power converters; MOSFET circuits; Stress; Switching circuits; Switching converters; Switching loss; Voltage;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1218160
