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:
Oct. 12, 2021
Filed:
Apr. 16, 2018
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
Shinichirou Wada, Tokyo, JP;
Katsumi Ikegaya, Hitachinaka, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Abstract
Restraining a reduction in an electric current detection accuracy, which is due to the temperature difference between an output MOS transistor and a sense MOS transistor, and easing a limitation on the layout of the sense MOS transistor. A semiconductor device includes: an output MOS transistor that has an output transistor portion including a source, a gate, and a drain formed on a semiconductor chip, and outputs an electric current for driving an external load; and a sense MOS transistor that has a sense transistor portion including a source, a gate, and a drain formed on the semiconductor chip, and having a width equal to a transverse width of the output transistor portion, and that detects the electric current output from the output MOS transistor.