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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 9231474 B1

PDFFull Text
Date of Patent:
Jan. 05, 2016

Filed:

Jul. 08, 2013

Dc/dc converter and display device

Applicant:

Nlt Technologies, Ltd., Kawasaki, Kanagawa, JP;

Inventor:

Kouichi Ooga, Kanagawa, JP;

Assignee:

NLT TECHNOLOGIES, LTD., Kanagawa, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Douglas W Owens

Assistant Examiner:

Monica C King

Int. Cl.
CPC ...
H05B 37/00 (2006.01); H02M 3/158 (2006.01); H02M 3/156 (2006.01); H05B 37/02 (2006.01); H02M 1/32 (2007.01); G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 3/156 (2013.01); H05B 37/02 (2013.01); G09G 5/003 (2013.01); G09G 2330/00 (2013.01); G09G 2330/06 (2013.01); H02M 2001/327 (2013.01);
Abstract

There are provided a DC/DC converter and a display device. The DC/DC converter includes: an inductor connected to an input terminal; a switching element connected between the inductor and the earth; a diode connected between the inductor and an output terminal; a capacitor connected between the output terminal and the earth; a feedback circuit connected between the output terminal and the earth and outputting a feedback voltage; and an oscillating circuit performing an ON/OFF control of the switching element at a frequency corresponding to the received feedback voltage. The DC/DC converter further includes: a detection circuit which detects an external magnetic field and outputs a signal that is different depending on whether or not the detected magnetic field exceeds a predetermined threshold; and a control circuit performing a control of the DC/DC converter according to the signal, to suppress an overcurrent of the DC/DC converter in a strong magnetic field.

Find Patent Forward Citations

Ooga, Kouichi. (2016). Dc/dc converter and display device (U.S. Patent No. 9231474). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9231474

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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