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. 28, 2017
Filed:
Oct. 23, 2014
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Masaki Wasekura, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A semiconductor device includes a transistor, a diode, a sense transistor, a sense diode, a resistor, and a clamp circuit. The diode is connected in inverse parallel to the transistor. The resistor is connected at one end of the resister to an emitter of the sense transistor and an anode of the sense diode, and is connected at the other end of the resister to an emitter of the transistor and an anode of the diode. The clamp circuit is configured to clamp a voltage that is generated in the resistor when a sense diode current flows. A ratio of a sense diode current to a current flowing to the diode is larger than a ratio of a sense current to a current flowing to the transistor.