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. 19, 2026
Filed:
Oct. 26, 2023
Southchip Semiconductor Technology (Shanghai) Co., Ltd., Shanghai, CN;
Southchip Semiconductor Technology (Shanghai) Co., Ltd., Shanghai, CN;
Abstract
Disclosed are a switching power supply and a control method thereof. The method includes: upon startup of the switching power supply, sending a first handshake signal to a primary control module to control a primary master control power transistor to stop a switching operation; upon elapse of a first duration, in response to a voltage value at a connection point failing to satisfy a predetermined condition within a second duration, determining that the primary master control power transistor stops the switching operation, and sending a second handshake signal to control the primary master control power transistor to perform the switching operation; and in response to the voltage value at the connection point satisfying the predetermined condition within a third duration, determining that the primary master control power transistor performs the switching operation, and adjusting a switching state of the primary master control power transistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile