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.

Date of Patent:
Dec. 07, 2021

Filed:

Jul. 05, 2018
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Zhao Fang, Plano, TX (US);

Emmanuel Osei Boakye, Dallas, TX (US);

Mark Benjamin Welty, McKinney, TX (US);

Eddie W. Yu, Plano, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); H01L 29/08 (2006.01); H01L 27/02 (2006.01); H01L 29/417 (2006.01); H01L 29/866 (2006.01); H01L 29/10 (2006.01); H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
H02H 9/046 (2013.01); H01L 27/0255 (2013.01); H01L 27/0266 (2013.01); H01L 27/0285 (2013.01); H01L 29/0847 (2013.01); H01L 29/1095 (2013.01); H01L 29/41758 (2013.01); H01L 29/866 (2013.01); H01L 29/7835 (2013.01);
Abstract

A surge protection device for providing bidirectional detections of one or more surge events. The device has low dynamic resistance during a surge protection mode, and it conducts ultra-low leakage current outside of the surge protection mode. In one implementation, the device includes first and second power transistors, a sensing circuit, and a driver circuit. The first power transistor includes a first source terminal that is coupled to the substrate, and the second power transistor includes a second source terminal that is coupled to the substrate. The sensing circuit is configured to detect a voltage of the first pin relative to the second pin and generate a sense signal when the voltage exceeds a threshold. The driver circuit is configured to generate a driver signal based on the sense signal and output the driver signal to at least one of the first or second gate terminal.


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Fang, Zhao. (2021). Bidirectional precision surge clamp with near-zero dynamic resistance and ultra-low leakage current (U.S. Patent No. 11196250). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11196250

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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