High Accuracy Open-Type Current Sensor with a Differential Planar Hall Resistive Sensor
AbstractIn 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%. View Full-Text
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Lee, S.; Hong, S.; Park, W.; Kim, W.; Lee, J.; Shin, K.; Kim, C.-G.; Lee, D. High Accuracy Open-Type Current Sensor with a Differential Planar Hall Resistive Sensor. Sensors 2018, 18, 2231.
Lee S, Hong S, Park W, Kim W, Lee J, Shin K, Kim C-G, Lee D. High Accuracy Open-Type Current Sensor with a Differential Planar Hall Resistive Sensor. Sensors. 2018; 18(7):2231.Chicago/Turabian Style
Lee, Sungho; Hong, Sungmin; Park, Wonki; Kim, Wonhyo; Lee, Jaehoon; Shin, Kwangho; Kim, Cheol-Gi; Lee, Daesung. 2018. "High Accuracy Open-Type Current Sensor with a Differential Planar Hall Resistive Sensor." Sensors 18, no. 7: 2231.
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