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:
Oct. 20, 2020

Filed:

Nov. 09, 2018
Applicant:

Shanghai Awinic Technology Co., Ltd, Shanghai, CN;

Inventors:

Jiantao Cheng, Shanghai, CN;

Xucheng Luo, Shanghai, CN;

Jianwei Hu, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 9/046 (2013.01); H02H 1/0007 (2013.01);
Abstract

A load switch integrated circuit and an electronic device are provided. In a case that a surge voltage is applied to an input of the load switch integrated circuit, a surge detection circuit controls a first discharging unit to be switched on to discharge surge energy from an input of the load switch integrated circuit to the ground, and controls a first switch transistor and a second discharging unit to be switched on through a control circuit to discharge surge energy to an output of the load switch integrated circuit to the ground. Compared with a case that surge energy is discharged only by a surge protection circuit in the conventional technology, surge energy is discharged via two paths, and a circuit area is smaller than that in the conventional technology in a case that there is large surge energy to be resisted.


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