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:
Nov. 08, 2016

Filed:

Jul. 14, 2015
Applicant:

Fdk Corporation, Tokyo, JP;

Inventors:

Eiji Nagashima, Tokyo, JP;

Toshio Shibata, Tokyo, JP;

Assignee:

FDK CORPORATION, Minato-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); G01R 19/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); G01R 19/00 (2013.01);
Abstract

A DC/DC converterof the present invention is provided with a constant-voltage power supply circuit; a SENSE+ terminal; a SENSE−/OCPSEL terminal pulled up to a predetermined voltage VL through a pull-up resistor R; and a controllerfor controlling the constant-voltage power supply circuit, wherein the controllercontrols the output voltage Vout of the constant-voltage power supply circuiton the basis of a potential difference between the SENSE+ terminal and the SENSE−/OCPSEL terminal, on the condition that the voltage of the SENSE−/OCPSEL terminal is lower than a threshold voltage, and sets predetermined control parameters on the basis of the voltage of the SENSE−/OCPSEL terminal, on the condition that the voltage of the SENSE−/OCPSEL terminal is equal to or higher than the threshold voltage.


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