The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2022
Filed:
Dec. 29, 2018
Csmc Technologies Fab2 Co., Ltd., Jiangsu, CN;
Southeast University, Jiangsu, CN;
Weifeng Sun, Wuxi New District, CN;
Rongrong Tao, Wuxi New District, CN;
Hao Wang, Wuxi New District, CN;
Jinyu Xiao, Wuxi New District, CN;
Wei Su, Wuxi New District, CN;
Shen Xu, Wuxi New District, CN;
Longxing Shi, Wuxi New District, CN;
Abstract
A method for improving the conversion efficiency of a CCM mode of a flyback resonant switch power supply, comprising: presetting a critical value Tset, calculating a time interval Ttap between adjacent zero points in the current connection time, outputting a shutdown signal at the zero points, and comparing the time interval Ttap with the preset critical value Tset; when Ttap>Tset, controlling the current shutdown time to be less than the shutdown time of the preceding cycle and outputting a start signal; when Ttap=0, controlling the current shutdown time to be greater than the shutdown time of the preceding cycle and outputting a start signal; and when 0<Ttap<=Tset, controlling the current shutdown time to be the same as the shutdown time of the preceding switch cycle and outputting a start signal.