Title :
An adaptive high-precision overpower protection scheme for primary-side controlled flyback converters
Author :
Huang, Pei-Lun ; Chen, Dan ; Chen, Ching-Jan ; Chen, Yu-Ming
Author_Institution :
Electr. Eng. Dept., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A primary-side controlled universal-line flyback converter is widely used for its low-cost and low standby power advantages; however, conventional overpower protection schemes with primary-side control suffer from inaccurate protection. In this paper, a novel scheme will be reported to achieve a very significant improvement in overpower accuracy. This scheme was implemented successfully in an integrated circuit without adding any extra pin compared to conventional schemes. Experimental and simulation results verified the proposed strategy.
Keywords :
integrated circuits; overvoltage protection; power convertors; adaptive high-precision overpower protection; flyback converters; inaccurate protection; integrated circuit; overpower accuracy; primary-side control; Converters; Inductors; Integrated circuit modeling; Power generation; Sensors; Timing;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE
Conference_Location :
Fort Worth, TX
Print_ISBN :
978-1-4244-8084-5
DOI :
10.1109/APEC.2011.5744781
