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:
Jan. 18, 2011

Filed:

Jul. 31, 2008
Applicants:

Uwe Weder, Au / Hallertau, DE;

Christoph Mayerl, Munich, DE;

Julia Kresse, Munich, DE;

Christoph Saas, Munich, DE;

Dennis Tischendorf, Unterhaching, DE;

Inventors:

Uwe Weder, Au / Hallertau, DE;

Christoph Mayerl, Munich, DE;

Julia Kresse, Munich, DE;

Christoph Saas, Munich, DE;

Dennis Tischendorf, Unterhaching, DE;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05G 1/10 (2006.01); G05F 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A circuit for detecting, whether a voltage difference is below a desired voltage difference comprises a voltage shift resistor, a current provider and a detection circuit. The current provider provides a current flowing through the voltage shift resistor such that the desired voltage difference across the voltage shift resistor is determined by a reference signal. The detection circuit is configured to compare a first voltage at a first input with a voltage at a second input to obtain a signal. The voltage shift resistor is coupled between a conductor for a second voltage and the second input, such that the voltage at the second input differs from the second voltage by the desired voltage difference, and wherein the detection circuit is configured to provide the signal, such that the signal indicates, whether the voltage difference between the first and the second voltage is below the desired voltage difference.


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