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:
Sep. 22, 2015

Filed:

Nov. 10, 2011
Applicants:

Ta-yung Yang, Mulpitas, CA (US);

Chao-chih Lin, Taoyuan County, TW;

Inventors:

Ta-Yung Yang, Mulpitas, CA (US);

Chao-Chih Lin, Taoyuan County, TW;

Assignee:

SYSTEM GENERAL CORPORATION, Taipei Hsien, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); H02H 5/04 (2006.01); H02M 3/156 (2006.01); H02M 1/32 (2007.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02H 5/042 (2013.01); G05F 1/00 (2013.01); H02M 3/156 (2013.01); H02M 3/158 (2013.01); H02M 2001/327 (2013.01);
Abstract

The present invention provides a control circuit having a multi-function terminal. The control circuit comprises a switching circuit, a sample-and-hold circuit, a detection circuit, and a comparator. The sample-and-hold circuit is coupled to the multi-function terminal for generating a sample voltage by sampling the feedback signal during a first period. The detection circuit is coupled to the multi-function terminal during a second period for generating a detection voltage. The comparator compares the detection voltage and the sample voltage for generating an over-temperature signal, wherein the over-temperature signal is couple to disable the switching signal.


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