Title :
A bi-flyback PFC converter with low intermediate bus voltage and tight output voltage regulation for universal input applications
Author :
Qiu, Weihong ; Wu, Wenkai ; Luo, Shiguo ; Gu, Wei ; Batarseh, Issa
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA
Abstract :
A single-stage bi-flyback power factor correction topology is proposed in this paper. By adding a secondary winding to BIFRED choke inductor, there are two discharging paths for the choke inductor: to load or to intermediate capacitor. In this topology, the intermediate bus voltage is limited to below 400 VDC for universal voltage applications, and DC/DC conversion cell can operate in CCM. A 150 W prototype unit based on this topology has been built and tested in the lab with experimental results that show good performance
Keywords :
DC-DC power convertors; inductors; power factor correction; voltage control; 150 W; BIFRED choke inductor; DC/DC conversion cell; bi-flyback PFC converter; discharging paths; intermediate capacitor; low intermediate bus voltage; output voltage regulation; secondary winding; single-stage bi-flyback PFC topology; universal input applications; Capacitors; Circuit topology; Flyback transformers; Inductors; Low voltage; Power factor correction; Prototypes; Reactive power; Snubbers; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989256
