Title :
A ZVS approach for AC/DC converter with PFC
Author :
Poon, N.K. ; Liu, C.P. ; Pong, M.H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., China
Abstract :
Other than integrating the PFC and the DC/DC converter, this approach resorts to the conventional two stage design with constant operating frequency and ZVS for all switches. A small switch is added between the PFC and asymmetric half bridge DC/DC converter to produce a four switch AC/DC converter with PFC. A 91% efficiency 12 V 10 A universal off line AC/DC adapter is built to demonstrate its merits.
Keywords :
AC-DC power convertors; DC-DC power convertors; bridge circuits; power factor correction; switches; switching convertors; synchronisation; 10 A; 12 V; 91 percent; AC-DC converter; PFC; ZVS; ZVT; asymmetric half bridge DC-DC converter; constant frequency operation; switches; universal off line ACDC adapter; Bridge circuits; DC-DC power converters; Diodes; Inductors; Power factor correction; Stress; Switches; Switching converters; Voltage control; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2003. APEC '03. Eighteenth Annual IEEE
Conference_Location :
Miami Beach, FL, USA
Print_ISBN :
0-7803-7768-0
DOI :
10.1109/APEC.2003.1179288
