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. 10, 2015
Filed:
May. 14, 2013
Renesas Electronics Corporation, Kanagawa, JP;
Yutaka Hayashi, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
The semiconductor device includes a power transistor that is disposed between a first signal line, which is coupled to a first external terminal, and a second signal line, which is coupled to a second external terminal. A gate electrode of the power transistor is coupled to a third signal line. The semiconductor device further includes a clamp circuit that clamps a voltage between the first signal line and the third signal line, a first resistive element that is disposed between the third signal line and the second signal line, and a monitoring section that monitors a voltage between the third signal line and the second signal line. The clamp circuit is configured so that a clamp voltage can be changed. The monitoring section exercises control to decrease the clamp voltage when the voltage between the third signal line and the second signal line exceeds a predefined threshold value.