A new high-current large-bandwidth DC active current probe for power electronics measurements

This paper is focused on the design and the realization of two high-current probes (up to 100 A) whose bandwidths range from dc to 50 MHz. The performance has been met by the association of an active Hall sensor and a passive current transformer. This association will be named an "active curren...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2005-02, Vol.52 (1), p.243-254
Main Authors: Poulichet, P., Costa, F., Laboure, E.
Format: Article
Language:English
Subjects:
Bandwidth
Current measurement
Current probe
current transformer
Current transformers
Direct current
Electric power
Electric power generation
Electromagnetic interference
electromagnetic interference (EMI)
Electromagnetic measurements
Electronics
Engineering Sciences
Frequency
Hall sensor
Halls
Power electronics
Power measurement
Probes
Ruggedness
Sensors
Transducers
Transformers
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Summary:This paper is focused on the design and the realization of two high-current probes (up to 100 A) whose bandwidths range from dc to 50 MHz. The performance has been met by the association of an active Hall sensor and a passive current transformer. This association will be named an "active current transformer". It will be shown that it has better frequency performance than the classical closed-loop current transducer, usually used for high-current measurements but frequency limited. The electromagnetic interference (EMI) issues, due to the sensor electrical environment are respected thanks to the shielded structure and special inner arrangements of the Hall sensors. Because of its large bandwidth, its large current range, and its EMI ruggedness, this current probe is well matched to power electronics measurements.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2004.841066