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:
Jul. 19, 2022
Filed:
Jun. 29, 2020
Csmc Technologies Fab2 Co., Ltd., Wuxi New District, CN;
Southeast University, Nanjing, CN;
Shen Xu, Wuxi New District, CN;
Wei Wang, Wuxi New District, CN;
Feng Lin, Wuxi New District, CN;
Boyong He, Wuxi New District, CN;
Wei Su, Wuxi New District, CN;
Weifeng Sun, Wuxi New District, CN;
Longxing Shi, Wuxi New District, CN;
CSMC TECHNOLOGIES FAB2 CO., LTD., Wuxi New District, CN;
SOUTHEAST UNIVERSITY, Xuanwu District Nanjing, CN;
Abstract
Provided is a dynamic control method that turns off a primary-side switching transistor when an output voltage exceeds an upper limit, and control the switching of a secondary-side synchronous rectification transistor with a fixed cycle and a fixed duty cycle. During the time that the synchronous rectification transistor is turned on, the energy of a load capacitor at the output end is extracted to the primary side, which causes the output voltage to drop rapidly and the overshoot voltage to decrease greatly.