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:
Nov. 30, 2021

Filed:

Dec. 02, 2020
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Jize Jiang, Singapore, SG;

Kan Li, Singapore, SG;

Assignee:

QUALCOMM INCORPORATED, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/12 (2006.01); H03K 5/04 (2006.01);
U.S. Cl.
CPC ...
H03K 5/12 (2013.01); H03K 5/04 (2013.01);
Abstract

According to certain aspects, a driver includes an output transistor coupled between a first rail and an output of the driver, a first current source coupled to a gate of the output transistor, a second current source, and a switch, wherein the switch and the second current source are coupled in series between the gate of the output transistor and a second rail. The driver also includes a current sensor configured to generate a sense current based on an output current of the driver, and a reference current source configured to generate a reference current, wherein the current sensor and the reference current source are coupled to a control input of the switch.


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