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:
May. 04, 2021

Filed:

Oct. 25, 2018
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Xiaoqun Liu, Chandler, AZ (US);

Madan Mohan Reddy Vemula, Tempe, AZ (US);

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/082 (2006.01); H03K 17/693 (2006.01); H03K 17/687 (2006.01); H03K 17/567 (2006.01); H03K 17/081 (2006.01); H02H 9/02 (2006.01);
U.S. Cl.
CPC ...
H03K 17/0822 (2013.01); H03K 17/082 (2013.01); H02H 9/02 (2013.01); H03K 17/08104 (2013.01); H03K 17/567 (2013.01); H03K 17/687 (2013.01); H03K 17/6871 (2013.01); H03K 17/693 (2013.01);
Abstract

A power switch over current protection system including a power switch transistor configured to deliver a power current from a power source to power load, a power switch driver configured to control and on/off state of the power switch, an over current protection (OCP) circuit to detect a threshold value of the power current, a discharge transistor configured to discharge a parasitic capacitance of the power switch transistor, and a system state machine to receive a signal from the OCP circuit configured to control an action of the power switch driver and discharge transistor depending on the level of the power current.


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