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. 04, 2011

Filed:

Jun. 11, 2008
Applicants:

Chun-ming Lin, Hsinchu, TW;

Hsin-yu Pan, Tucheng, TW;

Inventors:

Chun-Ming Lin, Hsinchu, TW;

Hsin-Yu Pan, Tucheng, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 7/217 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed are a synchronous rectifier control device and a forward synchronous rectifier circuit. The synchronous rectifier control device is coupled with the secondary side of the forward synchronous rectifier circuit, comprising a condition detecting unit, a reference time circuit and a synchronous signal generator. The condition detecting unit receives at least one reference signal and a detecting signal in response to the condition of the secondary side of the forward synchronous rectifier circuit, and accordingly generates a first synchronous control signal. The reference time circuit is coupled with the condition detecting unit, and generates a reference time signal in response to the first synchronous control signal. The synchronous signal generator generates a second synchronous control signal in response to the first synchronous control signal and the reference time signal.


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