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.

Date of Patent:
Nov. 08, 2022

Filed:

Sep. 29, 2020
Applicant:

Renesas Electronics Corporation, Tokyo, JP;

Inventors:

Yoshihiko Yokoi, Tokyo, JP;

Yusuke Ojima, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/10 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
G01R 19/10 (2013.01); H03K 17/6871 (2013.01);
Abstract

A semiconductor device includes m power transistors (m is an integer of 2 or more) coupled in parallel each of which has a sense source terminal, a Kelvin terminal and a source terminal, a first average circuit that connects the first resistor and the second resistor in order between the sense source terminal and the Kelvin terminal and generates first to fourth average voltages and an arithmetic circuit that measures a first current value flowing through the sense source terminal from the first and second average voltages, measures a second current value flowing through the sense source terminal from the third and fourth average voltages and measures a current value flowing through the source terminal from the first to fourth average voltages and the first and second current values.


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