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. 27, 2018

Filed:

Jan. 08, 2018
Applicant:

Dialog Semiconductor (Uk) Limited, London, GB;

Inventors:

Florian Regvar, Graz, AT;

Thomas Jackum, Graz-Seiersberg, AT;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/32 (2007.01); H02M 1/08 (2006.01); H03F 3/45 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02M 1/08 (2013.01); H02M 3/158 (2013.01); H03F 3/45273 (2013.01); H02M 2001/0025 (2013.01); H03F 2203/45096 (2013.01);
Abstract

A system to regulate an output voltage based on a reference voltage is described. The system has an error amplifier to determine an error voltage by cumulating a deviation of a feedback voltage from the reference voltage, wherein the feedback voltage is indicative of the output voltage. The system has a PWM unit to generate a PWM control signal based on the error voltage. In addition, the system has a voltage setting unit to set the output voltage based on the PWM control signal. The system has a saturation detection unit to detect a saturation situation of the system. In addition, the system has a clamping means to interrupt a further build-up of the error voltage in the saturated direction while allowing a modification of the error voltage in an opposite direction, opposite to the saturated direction, if a saturation situation is detected.


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