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Wide Bandwidth Current Sensor for Commutation Current Measurement in Fast Switching Power Electronics
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| Author(s) |
Philipp ZIEGLER |
| Abstract |
This paper presents a current sensor for commutation current measurement with a bandwidth from DCup to 315 MHz. The sensor is inserted in the commutation loop by a coaxial housing with a low insertioninductance of about 1.2 nH. The sensor is based on the HOKA principle using tunnel magnetoresistancesensors and a Rogowski-coil for low and high frequency current measurement respectively. The currentsensor is tested in a half-bridge configuration equipped with gallium nitride transistors and compared totwo state-of-the-art current sensors. |
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| Filename: | 0221-epe2020-full-15173872.pdf |
| Filesize: | 3.487 MB |
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| Type |
Members Only |
| Date |
Last modified 2021-01-18 by System |
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