Analysis and Design of the Buck Zero-Current-Switched Quasi- Resonant Converter

• Main Authors: Lin, Shyh-Fa, 林士發
• Other Authors: Jung-Chien Li
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/19682422663587990130

碩士 === 國立海洋大學 === 電機工程學系 === 84 === The zero-current-switched quasi-resonant converter is derived from the com-binations of conventional PWM converters and resonant principles,by adding a L-C resonant element to the switch of a PWM converter,so that in the switch highvoltage and high current are not present at the same,since the turn-off loss iseliminated by turning off the switch at zero current.This technique is referredto as the zero-current-switching technique. In this report,We derive some transfer functions of buck zero- current-switchedquasi-resonant converter,basedonVorperian's resonant switch model,so as to realize the stability analysis of the system.Finally,some selected experimental results presented to verify theproposed theory.