Title:
ELECTRIC CURRENT DETECTION DEVICE AND ELECTRIC CURRENT DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/240192
Kind Code:
A1
Abstract:
An electric current detection device (100) that comprises: a shunt resistor (1) connected in series to a path along which electric current flows; a first circuit (2) that converts the voltage at both ends of the shunt resistor (1) to a prescribed differential voltage; a second circuit (3) to which the prescribed differential voltage is input from the first circuit (2) via a wiring pair (55) and which amplifies the prescribed differential voltage; a constant current circuit (4) connected between the wiring pair (55); and a calculation circuit (5) that calculates the electric current flowing through the path, on the basis of the voltage amplified by the second circuit (3).
Inventors:
TAKIGASHIRA NAOKI (JP)
YAMASHITA MASANORI (JP)
MATSUDA KOUICHI (JP)
YAMASHITA MASANORI (JP)
MATSUDA KOUICHI (JP)
Application Number:
PCT/IB2020/000514
Publication Date:
December 02, 2021
Filing Date:
May 28, 2020
Export Citation:
Assignee:
NISSAN MOTOR (JP)
RENAULT SAS (FR)
RENAULT SAS (FR)
International Classes:
G01R19/00
Foreign References:
| CN203551651U | 2014-04-16 | |||
| JP2012117929A | 2012-06-21 | |||
| JP2010249751A | 2010-11-04 | |||
| JP2015222176A | 2015-12-10 | |||
| US20100327887A1 | 2010-12-30 | |||
| JP2010249751A | 2010-11-04 |
Other References:
See also references of EP 4160225A4
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM et al. (JP)
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