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:
Aug. 14, 2018
Filed:
Dec. 09, 2014
Yazaki Corporation, Tokyo, JP;
Katsuyuki Iwasaki, Makinohara, JP;
YAZAKI CORPORATION, Tokyo, JP;
Abstract
A semiconductor abnormality detection circuit includes a semiconductor circuit and a controller which controls supply of power to a load. The semiconductor circuit includes a switch device disposed between a power source and the load, and a sense signal generator generating a sense signal corresponding to a current flowing through the switch device. The controller judges that the semiconductor circuit is operating normally if the instruction voltage level is equal to an off-voltage corresponding to non-energization of the switch device and a voltage of the sense signal is equivalent to a prescribed off-voltage corresponding to non-energization of the switch device or the instruction voltage level is equal to an on-voltage corresponding to energization of the switch device and a voltage of the sense signal is equivalent to a prescribed on-voltage corresponding to a steady energization state of the load.