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. 20, 2025
Filed:
Dec. 20, 2022
Shanghai Bright Power Semiconductor Co., Ltd., Shanghai, CN;
Danzhu Lv, Shanghai, CN;
SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD., Shanghai, CN;
Abstract
A controller in a switched-mode power supply and a method for control thereof are disclosed by the present invention. The controller provided in the present invention is used to control a power switching device in the switched-mode power supply to convert an input DC voltage into an output DC voltage. The controller includes a sampling and feedback unit and a ramp compensation unit and is configured to obtain a first ramp signal reflecting energy variation of an energy storage element and to produce a second ramp signal from the first ramp signal so that the difference between the second ramp signal and the first ramp signal is lower than a predetermined value.