公开(公告)号：US20210172982A1

公开(公告)日：2021-06-10

申请号：US17065853

申请日：2020-10-08

Applicant: TDK Corporation

Inventor： Adrian LO ,  Masafumi KAMI ,  Jun HIRABAYASHI

IPC: G01R19/15 ,  G01R15/20

Abstract: Disclosed herein is a current sensor that includes a bus bar and a magnetic sensor. The bus bar includes first and second cylindrical structure parts which are coaxially arranged, and a sensing part disposed in a hollow area surrounded by the first and second cylindrical structure parts. The magnetic sensor is disposed in the hollow area. The bus bar is configured to branch current to be measured into the first cylindrical structure part and sensing part and to make at least part of a current component of the current to be measured that flows in the first cylindrical structure part in one direction flow in the second cylindrical structure part in an opposite direction to the one direction.