The soft switch converter adapt to high frequency switch power supply. The soft switch converter characteristic
is that the switching components will open on zero cross point of voltage or close on zero cross point of current. By this
characteristic the switching noise and switching loss can be reduce to be least. Quasi-resonant converter is one of the soft
switch converter, and it work on an invariableness frequency. The resonance of quasi-resonant converter will only appear
at part-time in switch cycle. The rationale of quasi-resonant converter is introduced, and emphasis on the process and
methods of the design of quasi-resonant converter by the software of SMPS Design Toolkit 1.6.
中图分类号:TN86 文献标识码: A 文章编号：0219-2713（2008）02-0059-06
