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:
Jun. 23, 2020

Filed:

Aug. 16, 2017
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Shenglan Tang, Shanghai, CN;

Jian Qing, Shanghai, CN;

Xindong Duan, Shanghai, CN;

Assignee:

NXP USA, Inc., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
H02H 9/041 (2013.01);
Abstract

A surge protection circuit includes a DC trigger circuit that generates a trigger signal when a surge pulse occurs, and a surge protection device, coupled to the DC trigger circuit, that generates a clamp voltage as an output voltage of the surge protection circuit and conducts surge currents to ground in response to the trigger signal. A feedback circuit is provided between the surge protection device and the DC trigger circuit. The feedback circuit lowers the clamp voltage so that it does not exceed a failure voltage of the surge protection device.


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