CHENG Xing-guo, DAN Qiang, SUN Zhen-jun, et al. Modeling and implementation of a novel closed-loop Hall current sensor using dual iron-core[J]. 2013, 32(11): 68-70.
CHENG Xing-guo, DAN Qiang, SUN Zhen-jun, et al. Modeling and implementation of a novel closed-loop Hall current sensor using dual iron-core[J]. 2013, 32(11): 68-70. DOI: 10.13873/j.1000-97872013.11.042.
A novel closed-loop dual iron-core current sensor is presented. Two type cores structures are chosen
one is a DC current sensor core with a gap for Hall chip
and another is AC current sensor seamless core. The structure and material of the dual iron-core are determined by means of theoretical analysis and simulation calcutation. Experimental results show that the new type dual iron-core current sensor can not only eliminate the steps phenomenon in the frequency characteristic of closed-loop Hall current sensor
but also keep good precision and linearity.
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references
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