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:
Mar. 04, 2025
Filed:
Dec. 06, 2022
Shanghai Bright Power Semiconductor Co., Ltd., Shanghai, CN;
Danzhu Lv, Shanghai, CN;
SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD., Shanghai, CN;
Abstract
A switched-mode power supply and a control circuit for use in a switched-mode power supply are disclosed. In addition to an EA module, a PWM comparator module and a soft-start voltage generation module, the control circuit also includes an amplitude limiter module for limiting the amplitude of an EA signal based on a soft-start reference voltage and thereby enabling the amplitude of a signal input to the PWM comparator module from the EA module to follow a soft-start control signal and vary stably and smoothly. This can reduce the risk of output voltage and inductor current overshoots due to DC loop establishment during startup of the switched-mode power supply, enhance stability and safety of the power supply system during startup, and accelerate the DC loop establishment.