The Survey And Applications Of Single Phase Active AC/DC Converter & High Performance Power Module

High power factor, high efficiency, low noise, is the character that power supply and electronic equipment pursuing. This paper is based on the research and development of single phase active power factor corrector and high quality power module. The paper has the fully research and discussion from theory and application development.The mandatory implement of electromagnetic compatibility make it necessary for application research of active power factor corrector in higher power vary speed equipment. Combing the application development of active power factor corrector and the development in home and abroad, aiming at the application of the higher power, adopting the parallel interleaving active power factor correction topological structure.(1) Make some theory analyses for the structure of traditional boost power factor corrector, set up Pspice simulation model basing on double closed loop control theory. Make some simulation analyses and get the experiment verification.(2) Traditional boost power factor correction topology controller, for example, with UC3854N and/or L4981A/B control chip compared with each other, particular expatiate parameter optimize, component choice, printed circuit board design etc essential point, make detailed analysis about how to improve the capability of Boost PFC and give the proper way arising in the producing. (3) As for the situation of high current stress under the circumstance of high power, make some improvement for the project of basic - two level parallel connection interleaving boost power factor corrector, make some analysis combing the different inductor roll mode and different driving mode, make the validation through the experiment.Recount the smart power module FSBB20CH60 bearing the function of integrated driving, protecting and system controlling, implement the isolation outside driving design, carry out a kind of high quality power module. Make the cost lower and enhance the reliability. At present it has put into batch production and gets the expectant purpose.