Power Factor Improvement Technology by Resonant Type Converter Circuit

Abstract

It is desired to develop soft-switching power factor improvement technology and put it into practical use by means of a high-efficiency, low-noise, and low-cost resonant-type converter. Every technology that has been developed and reported so far has many disadvantages as well as advantages, and there are many problems to be solved before they can be put into practical use. In this paper, I am going to explain the structure of the partially capacitor input rectifier circuit that employs soft-switching operation that has been developed a new as the power-feedback-system one-converter circuit. These technologies have enabled us to put the power factor improvement for consumer-use electronic products into practical use.