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. 20, 2024
Filed:
Jan. 25, 2023
Fuji Electric Co., Ltd., Kawasaki, JP;
Motomitsu Iwamoto, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A semiconductor device includes: a first transistor having a first electrode, a second electrode, and a third electrode coupled to a load; a second semiconductor having a first electrode, a second electrode, and a third electrode configured to output a second current corresponding to a first current that flows through the load; and a third transistor coupled in series with the second transistor, to thereby receive the second current; an output circuit configured to output a second voltage by amplifying a difference between a first voltage at the third electrode of the first transistor and a reference voltage, and a fourth voltage by amplifying a difference between a third voltage at the third electrode of the second transistor and the reference voltage; and an operational amplifier configured to control the third transistor, based on the second and fourth voltages such that the first voltage and the third voltage match.