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. 26, 2016

Filed:

Oct. 25, 2011
Applicants:

Yoshihide Kanakubo, Kanagawa, JP;

Noboru Nakashima, Kanagawa, JP;

Inventors:

Yoshihide Kanakubo, Kanagawa, JP;

Noboru Nakashima, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/087 (2006.01); H02H 3/00 (2006.01); H02H 5/04 (2006.01);
U.S. Cl.
CPC ...
H02H 3/087 (2013.01); H02H 3/006 (2013.01); H02H 5/042 (2013.01);
Abstract

A current controller for generating a control signal which controls supply current flowing from a power source to a load includes an interface circuit which sets a threshold based on an instruction from an outside of the current controller, a threshold setting circuit which stores and outputs the threshold, a sensing circuit which determines a current or a temperature of a sensing element, and outputs a signal indicating that the supply current should be interrupted as the control signal if a determined current or a determined temperature exceeds the threshold, and a sensing control circuit which generates a clock signal including pulses with a predetermined period. The sensing circuit determines the current or the temperature of the sensing element during an active period of the clock signal.


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