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.:
Date of Patent:
Dec. 29, 2015
Filed:
Sep. 12, 2012
Ippei Kawamoto, Kariya, JP;
Takeyoshi Hisada, Hekinan, JP;
Fukuo Ishikawa, Kariya, JP;
Akira Sugiura, Okazaki, JP;
Ippei Kawamoto, Kariya, JP;
Takeyoshi Hisada, Hekinan, JP;
Fukuo Ishikawa, Kariya, JP;
Akira Sugiura, Okazaki, JP;
DENSO CORPORATION, Kariya, JP;
ANDEN CO., LTD., Anjo, JP;
Abstract
An overcurrent protection circuit includes a load drive section driving a load, a wire coupled with the load and the load drive section, a current detection section detecting a load current value of an electric current that flows to the load, an addition and subtraction section determining an addition and subtraction value based on the load current value and transmitting an integration result of addition and subtraction, a comparison circuit comparing the integration result with a threshold value, and a control circuit controlling the load drive section based on the comparison result. The addition and subtraction section includes an addition value determination circuit that determines an addition value in the addition and subtraction value based on the load current value and a function expression or information indicating a relationship between the load current value and the addition value.