Design of critical mode controller for system power supplier to maintain switching stability

Yanfeng Jiang, Xiaobo Zhang, Bing Yang, Jiaxin Ju

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For the system power supplier, it should be operated under critical mode to maintain its switching stability on the condition of dynamic load. In this paper, the principle of critical mode has been analyzed based on the FLYBACK structure. After the analysis of the pole and zero point corresponding to non-continuous mode and continuous current mode, the design of a critical mode controller, which based on the adjustment of the switching frequency, has been proposed in this paper. The proposal has been simulated using SPICE software. Moreover, the power supply with the function of critical mode controller has been designed in the paper, too.

Original languageEnglish (US)
Title of host publicationProceedings of the 27th Chinese Control Conference, CCC
Pages20-24
Number of pages5
DOIs
StatePublished - Sep 30 2008
Event27th Chinese Control Conference, CCC - Kunming, Yunnan, China
Duration: Jul 16 2008Jul 18 2008

Publication series

NameProceedings of the 27th Chinese Control Conference, CCC

Other

Other27th Chinese Control Conference, CCC
CountryChina
CityKunming, Yunnan
Period7/16/087/18/08

Keywords

  • Critical mode controller
  • Switching power supply

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