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:
Feb. 26, 2019

Filed:

Nov. 29, 2017
Applicant:

Dialog Semiconductor (Uk) Limited, London, GB;

Inventors:

Hande Kurnaz, Dettingen-Teck, DE;

Ambreesh Bhattad, Swindon, GB;

Frank Kronmueller, Neudenau, DE;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/571 (2006.01); G05F 1/56 (2006.01); G05F 1/569 (2006.01); G05F 1/575 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
G05F 1/571 (2013.01); G05F 1/562 (2013.01); G05F 1/569 (2013.01); G05F 1/575 (2013.01); H02M 1/32 (2013.01);
Abstract

A regulator for providing a load current at a regulator output voltage to a load at an output of the regulator is described. The regulator has a differential input stage to provide a differential output voltage based on a reference voltage and based on the regulator output voltage. Furthermore, the regulator has an output driver to generate a control signal based on the differential output voltage. In addition, the regulator has a pass transistor to provide the load current in dependence of the control signal. The regulator also has clamping circuitry to sense an overvoltage indication which indicates that the pass transistor is being turned off. Furthermore, the clamping circuitry clamps the differential output voltage to a clamping voltage, if the overvoltage indication indicates that the pass transistor is being turned off.


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