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. 22, 2016
Filed:
Jul. 20, 2012
Tadahiko Yoshioka, Ina, JP;
Koichi Hirasawa, Ina, JP;
Yoshinori Aruga, Ina, JP;
KOA CORPORATION, Ina-shi, JP;
Abstract
Provided is a voltage detection circuit, which can remove influence of error voltage caused by tiny amount of self-inductance existing in a shunt resistor, though in the resistor for large current usage, which is impossible to surface-mount on a voltage detection circuit board. The shunt resistor device comprises: a resistance body (); a pair of main electrode () for flowing current to be monitored through the resistance body; a pair of detection terminal () for detecting voltage caused in the resistance body; and a pair of wiring () each electrically connected to the detection terminal. And, a pair of voltage detection wiring consisting of the detection terminal () and the wiring () is brought closer, at prescribed location, than distance between each of connection position of the pair of the detection terminal () on the main electrode (). A low-pass filter having resistance value (r) and capacitance (C) is provided at next stage after the pair of the wiring, and said low-pass filter having a relationship Le/R=C·r, when Le (=L−M) is the effective inductance, and R is the resistance value of the resistance body.