High Accuracy Open-Type Current Sensor with a Differential Planar Hall Resistive Sensor
| Autor: | Wonki Park, Sung-Ho Lee, CheolGi Kim, Kwangho Shin, Dae-Sung Lee, Sung-Min Hong, Won-Hyo Kim, Jae-Hoon Lee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Differential structure 02 engineering and technology Integrated circuit lcsh:Chemical technology magnetic sensor 01 natural sciences Biochemistry Article Analytical Chemistry law.invention law Hardware_GENERAL 0202 electrical engineering electronic engineering information engineering current sensor lcsh:TP1-1185 Current sensor Electrical and Electronic Engineering Instrumentation high accuracy Resistive touchscreen business.industry 020208 electrical & electronic engineering 010401 analytical chemistry Electrical engineering post-CMOS process Atomic and Molecular Physics and Optics Magnetic flux 0104 chemical sciences Magnetic field read-out IC (ROIC) CMOS planar hall resistive (PHR) Hall effect sensor business |
| Zdroj: | Sensors Volume 18 Issue 7 Sensors, Vol 18, Iss 7, p 2231 (2018) Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s18072231 |
| Popis: | 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 multi-chip 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%. |
| Databáze: | OpenAIRE |
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