作者:Ray Ridley,A. Lotfi,V. Vorperian,F.C.Y. Lee
摘要:A full-wave zero-voltage switching quasiresonant converter flyback converter with a novel multiloop control was built which operates over the range of input voltage and load of a typical distributed-system power supply. The maximum converter frequency of 880 kHz is shown to be close to the practical limit for this specific application. Reasonable full-load efficiency is achieved, and the predicted losses agree with actual circuit measurements. The multiloop control scheme provides noise-immune and stable control over the full operating range of the converter. Design guidelines for the control are given, and it is shown theoretical and measured small-signal performance are in agreement. Performance and stress predictions are also very close to measurements
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