Title :
Single-stage half-bridge converter with high power factor
Author :
Choi, W.-Y. ; Kwon, J.-M. ; Do, H.-L. ; Kwon, B.-H.
Author_Institution :
Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol., South Korea
fDate :
5/6/2005 12:00:00 AM
Abstract :
A single-stage half-bridge AC-DC converter is proposed for high power factor and high efficiency. A two-transformer half-bridge DC-DC converter is coupled to the line voltage for power factor correction (PFC) and it is operated in complementary control for zero-voltage switching. The proposed PFC can achieve almost unity power factor and ripple-free input current. Experimental results for a 300 W converter at a constant switching frequency of 100 kHz are obtained to show the performance of the proposed converter.
Keywords :
AC-DC power convertors; DC-DC power convertors; bridge circuits; power factor correction; zero voltage switching; 100 kHz; 300 W; complementary control; power factor correction; ripple-free input current; single-stage half-bridge AC-DC converter; two-transformer half-bridge DC DC converter; unity power factor; zero-voltage switching;
Journal_Title :
Electric Power Applications, IEE Proceedings -
DOI :
10.1049/ip-epa:20045138
