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:
Jul. 22, 2014

Filed:

Apr. 28, 2009
Applicants:

Joel Turchi, Gagnac sur Garonne, FR;

Karel Ptacek, Roznov Pod Radhostem, CZ;

Radim Mlcousek, Frenstat pod Radhostem, CZ;

Inventors:

Joel Turchi, Gagnac sur Garonne, FR;

Karel Ptacek, Roznov Pod Radhostem, CZ;

Radim Mlcousek, Frenstat pod Radhostem, CZ;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 19/165 (2006.01);
U.S. Cl.
CPC ...
G01R 19/16538 (2013.01);
Abstract

A circuit and method for detecting a brown-out condition and providing a feed-forward transfer function in a power supply circuit. A comparison circuit is coupled to a delay element through a latch. A second delay element is connected between the first delay element and an input of the latch. The output of the first delay element is connected to a clamping circuit via a logic circuit. A first voltage is compared with a reference voltage to generate a comparison voltage, which is transmitted through the latch and the first delay element. The comparison voltage is monitored at an output of the first delay element. A brown-out condition occurs if the comparison voltage being monitored at the output of the first delay element results from the first voltage being less than the reference voltage.


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