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:
Apr. 26, 2016

Filed:

Sep. 24, 2014
Applicant:

Dialog Semiconductor Gmbh, Kirchheim/Teck-Nabern, DE;

Inventors:

Kemal Ozanoglu, Istanbul, TR;

Merve Toka, Istanbul, TR;

Selcuk Talay, Istanbul, TR;

Frank Kronmueller, Neudenau, DE;

Assignee:

Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/59 (2006.01); G05F 1/575 (2006.01);
U.S. Cl.
CPC ...
G05F 1/59 (2013.01); G05F 1/575 (2013.01);
Abstract

A method and a system for increasing the open loop gain of linear regulators are presented. A linear regulator to derive an output voltage from an input voltage is described. The linear regulator contains an amplifier to derive an amplifier output signal from an amplifier input signal, and a pass device to convert the amplifier output signal into the output voltage. The linear regulator has a positive feedback loop using a positive feedback gain γ, and a negative feedback loop using a negative feedback gain β. In addition, the linear regulator has a combining unit to determine the amplifier input signal from the input voltage, from the positive feedback signal and from the negative feedback voltage. A transfer function of the linear regulator exhibits a first and a second pole at a first frequency wp1 and at a second frequency wp2, respectively.


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