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:
Jun. 16, 2026
Filed:
May. 17, 2024
Huawei Technologies Co., Ltd., Shenzhen, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A switching power supply circuit includes a power transistor circuit, including a plurality of power transistors coupled in series between a power supply end and a ground, where a first electrode of a first power transistor in the plurality of power transistors is coupled to the power supply end by using a second power transistor in the plurality of power transistors, and a second electrode of the first power transistor is coupled to the ground by using a third power transistor in the plurality of power transistors; a drive circuit, configured to drive the second power transistor and the third power transistor; and a first transistor, where both a gate and a first electrode of the first transistor are coupled to a gate of the third power transistor, and a second electrode of the first transistor is coupled to the ground by using a first switch.