公开(公告)号：US20180364315A1

公开(公告)日：2018-12-20

申请号：US15823447

申请日：2017-11-27

Applicant: University of Electronic Science and Technology of China

Inventor： Qi Huang ,  Arsalan Habib Khawaja ,  Yafeng Chen ,  Shi Jing ,  Jian Li ,  Zhenyuan Zhang ,  Jianbo Yi

IPC: G01R33/09 ,  G01R19/00 ,  G01R1/18

Abstract: An electronic current transformer for measuring currents includes a shielding structure, TMR sensor, conductor, amplification circuit, and circuit board. The shielding structure comprises a material that protects the sensor from external disturbance and damps the magnetic field from the internal conductor. The TMR sensor is connected to the amplification circuit for electric current measurement by means of reconstruction of magnetic field measurement. The TMR sensor is configured to receive data from the conductor and to transmit the data to the amplification circuit, which is configured to amplify the data and release the data as an output of the transformer.