Open-Loop CMOS Current Transducer with Low Temperature Cross-Sensitivity

Banjevic, M.; Liakou, F.; Furrer, B.; Dimitrijevic, Sasa; Blagojević, Marija; Dimitropoulos, P.D.; Popović, R.S.

doi:10.1016/j.proeng.2011.12.402

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“…Therefore, a value of current intensity can be obtained by measuring the primary magnetic field around a bus bar. In this type of cur rent sensor, also known as open-loop current sensors, primary magnetic field measurement can be properly performed using Hall effect sensors [1,2].…”

Section: Introductionmentioning

confidence: 99%

Realization and optimization of bus bar current transducers based on Hall effect sensors

Blagojević¹,

Jovanović

et al. 2016

Meas. Sci. Technol.

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In this paper the realization and optimization of two coreless open-loop bus bar current transducers based on a Hall effect sensor are presented. Two types of bus bar are evaluated: flat rectangular and rectangular with a restrictive region in the middle. Both realized transducers are capable of measuring AC and DC currents up to 300 A and 10 kHz frequency with nonlinearity less than 0.3% in the entire range. Several methods for resolving issues with the skin effect and stray magnetic fields are presented along with the experimental test results. Some of the presented methods are novel and have never been evaluated.

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Section: Introductionmentioning

confidence: 99%