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:
Mar. 17, 2009
Filed:
Dec. 18, 2006
Shunzou Ohshima, Kosai, JP;
Shunzou Ohshima, Kosai, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
An ON failure detecting apparatus detects an ON failure of an FET Tof a power supply circuit which includes the FET Tdisposed between a battery E and a load RL, and controls driving and stopping of the load RL. The ON failure detecting apparatus includes a driver circuitthat supplies a driving voltage VD for switching ON and OFF of the FET Tto a gate of the FET T, a gate resistor Rg that is provided between the driver circuitand a gate of the FET T, and an ON failure determining circuitthat detects whether a voltage drop in the gate resistor Rg exceeds a predetermined value, and determines that an ON failure occurs in the FET T, when the voltage drop in the gate resistor Rg exceeds the predetermined value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile