US 11,789,095 B2
Current sensor, magnetic sensor and circuit
Yuta Saito, Tokyo (JP); Yoshihiro Kudo, Tokyo (JP); Daisuke Miyauchi, Tokyo (JP); and Satoshi Abe, Tokyo (JP)
Assigned to TDK Corporation, Tokyo (JP)
Filed by TDK Corporation, Tokyo (JP)
Filed on Jun. 23, 2022, as Appl. No. 17/847,694.
Application 17/847,694 is a continuation of application No. 17/155,307, filed on Jan. 22, 2021, granted, now 11,397,225.
Claims priority of application No. 2020-015443 (JP), filed on Jan. 31, 2020.
Prior Publication US 2022/0317210 A1, Oct. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01R 33/09 (2006.01); G01R 1/20 (2006.01); G01R 15/20 (2006.01)
CPC G01R 33/09 (2013.01) [G01R 1/203 (2013.01); G01R 15/205 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A current sensor comprising:
a magnetic detecting device that changes its electrical resistance in response to a change in a magnetic field to be measured;
a plurality of coils that are arranged in the vicinity of said magnetic detecting device and that are connected in series; and
a shunt resistor, that is connected in series between said plurality of coils, for detecting a current flowing through all of said plurality of coils.