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.

Patent No.:

US 8829864 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 09, 2014

Filed:

Mar. 13, 2013
Applicant:

Collabo Innovations, Inc., Ottawa, CA;

Inventor:

Takuya Ishii, Osaka, JP;

Assignee:

Collabo Innovations, Inc., Ottawa ON, CA;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 5/00 (2006.01); H05B 33/08 (2006.01); H02M 3/156 (2006.01); G05F 1/10 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
G05F 1/10 (2013.01); H02M 2001/0022 (2013.01); H05B 33/0848 (2013.01); H05B 33/0815 (2013.01); H02M 3/156 (2013.01);
Abstract

A current driver circuit includes a converter part having a switching element and converting an input voltage into an output voltage; a current detector which generates a detection signal indicative of the current of the switching element; an input voltage compensating circuit which generates a compensation signal corresponding to the input voltage; a comparator which compares the detection signal and the compensation signal against each other; and a switch driver circuit which generates a drive signal. The drive signal turns the switching element off in accordance with an output of the comparator, and turns the switching element on again after a lapse of a prescribed time from the switching element being turned off.


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