Title
High Accuracy Open-Type Current Sensor with a Differential Planar Hall Resistive Sensor.
Abstract
In this paper, we propose a high accuracy open-type current sensor with a differential Planar Hall Resistive (PHR) sensor. Conventional open-type current sensors with magnetic sensors are usually vulnerable to interference from an external magnetic field. To reduce the effect of an unintended magnetic field, the proposed design uses a differential structure with PHR. The differential structure provides robust performance to unwanted magnetic flux and increased magnetic sensitivity. In addition, instead of conventional Hall sensors with a magnetic concentrator, a newly developed PHR with high sensitivity is employed to sense horizontal magnetic fields. The PHR sensor and read-out integrated circuit (IC) are integrated through a post-Complementary metal-oxide-semiconductor (CMOS) process using multichip packaging. The current sensor is designed to measure a 1 A current level. The measured performance of the designed current sensor has a 16 kHz bandwidth and a current nonlinearity of under +/- 0.5%.
Year
DOI
Venue
2018
10.3390/s18072231
SENSORS
Keywords
Field
DocType
current sensor,high accuracy,magnetic sensor,planar hall resistive (PHR),post-CMOS process,read-out IC (ROIC)
Magnetic field,Resistive touchscreen,Hall effect sensor,Electronic engineering,CMOS,Differential structure,Current sensor,Engineering,Magnetic flux,Electrical engineering,Integrated circuit
Journal
Volume
Issue
Citations 
18
7.0
0
PageRank 
References 
Authors
0.34
7
8
Name
Order
Citations
PageRank
Sungho Lee100.34
Sung-Min Hong215216.56
Wonki Park300.34
Wonhyo Kim400.34
Jaehoon Lee500.68
Kwangho Shin600.34
Cheolgi Kim77513.38
Daesung Lee810512.96