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. 19, 2018

Filed:

Aug. 26, 2016
Applicant:

Dialog Semiconductor (Uk) Limited, London, GB;

Inventors:

Mihail Jefremow, Augsberg, DE;

Dan Ciomaga, Ingolstadt, DE;

Qiao Yang, Munich, DE;

Stephan Drebinger, Munich, DE;

Fabio Rigoni, Karlsfeld, DE;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/155 (2006.01); G05F 1/575 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); H02M 3/155 (2013.01);
Abstract

A linear regulator is presented. It comprises a first amplifier stage, one of the inputs being coupled with the output of the linear regulator. It has an intermediate amplifier stage. The input of the intermediate amplifier stage is coupled to the output of the first amplifier stage. It has a driver stage having a pass device driven by the output of the driver stage. The output of the pass device provides the output of the linear regulator. The regulator has a voltage-to-current feedback circuit coupled with the driver stage and the output of the first amplifier stage for regulating the output resistance of the first amplifier stage depending on load conditions of the linear regulator. The voltage-to-current feedback circuit has a transistor and a current limitation circuit to limit the regulation of the output resistance of the first amplifier stage to low load conditions of the linear regulator.


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