A novel digital multi-mode control strategy with PSM for primary-side flyback converter. Issue 5 (4th May 2017)

• Record Type: Journal Article
• Authors: Xu, Shen; Ni, Dandan; Lu, Shengli; Sun, Weifeng
• Is Part Of: International journal of electronics. Volume 104:Issue 5(2017)
• Page Start: 840
• Page End: 854
• Publication Date: 2017-05-04
• Subjects: Primary-side flyback converter -- multi-mode -- PSM -- high efficiency -- digital control; Electronics -- Periodicals; Electronic control -- Periodicals; 621.381
• DOI: 10.1080/00207217.2016.1253783
• Languages: English
• ISSNs: 0020-7217

Abstract

ABSTRACT: This article described a novel digital multi-mode control strategy for primary-side controlled flyback converter to improve the efficiency within full-load range. The working modes of different load ranges were chosen according to the main power losses analysis and other constraint. Especially, a novel pulse skip mode control method which could reduce the number of actual switching cycles was proposed to improve the light load efficiency. A prototype with field-programmable gate array control has been made to verify the proposed digital multi-mode control strategy.