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High-frequency Boost PFC converter using CoolMOS and SiC diodes

  • 2013-09-22
  • 278.38KB
  • Points it Requires : 2

  In high-frequency PFC Boost converters, a method of using CoolMOS and silicon carbide (SiC) diodes together has become a research hotspot. Here, a 400kHz 500W PFC converter is taken as an example to study the method; in view of the drop in efficiency when the converter has low voltage input, an attempt is made to improve it with a soft switching circuit, but the experimental results show that the effect is not obvious; on this basis, a 400kHz 1KW PFC converter is completed using a hard switching method with three MOS in parallel, and the experimental results are given.

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