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:
Apr. 26, 2022
Filed:
Dec. 30, 2020
Sheng Lin, Tianjin, CN;
Sheng Lin, Tianjin, CN;
VANCHIP (TIANJIN) TECHNOLOGY CO., LTD., Tianjin, CN;
Abstract
Disclosed are a surge protection power supply clamping circuit, a chip and a communication terminal. The power supply clamping circuit comprises at least one driving unit and discharging unit; the discharging units are connected to the corresponding driving units respectively, and the driving units are connected to the same time delay unit respectively; the time delay units and the discharging units are connected to a power supply voltage and a ground line respectively. The driving units or the discharging units are sequentially controlled in the power supply voltage wiring direction, so that the sum values of an equivalent conduction resistance and an equivalent metal wiring resistance of respective discharging units are the same, and therefore, the uneven conduction of an NMOS transistor caused by different metal wiring resistances due to different metal wiring lengths of the NMOS transistor of each discharging unit can be counteracted.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile