Isolated Current-Fed Full-Bridge Power Factor Corrector

• Main Authors: Cheng-Tai Lin, 林成泰
• Other Authors: Yu-Kang Lo
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/57172995942987853019

碩士 === 國立臺灣科技大學 === 電子工程系 === 100 === This thesis aims to study a single-stage isolated current-fed full-bridge power factor correction (PFC) converter for high power applications. A commercial PFC control IC UC3854BN is combined with an external Complex Programmable Logic Device (CPLD) circuit to realize the gating signals with overlapping-time design for the studied current-fed full-bridge converter. High efficiency, high power factor and simple circuit topology can be achieved by the proposed high-power converter. The operating principles and design criteria are analyzed and discussed in details. A 1.2kW laboratory prototype was implemented and tested. The experimental results are shown to verify the feasibility of the proposed high-performance high-power isolated PFC converter.