A Hall Sensor-Based Current Measurement Microsystem with Continuous Gain Calibration

A novel technique for the continuous calibration of the sensitivity of Hall sensors is presented. Using an integrated coil and a new modulation/demodulation scheme, the sensitivity is measured and its drift eliminated. The obtained thermal drift is 50 ppm/degrees C, which corresponds to a reduction by a factor of 6-10 compared to the previous state of the art. The sensitivity drift due to purely mechanical stresses and ageing is also cancelled.


Published in:
Proceedings of the International Conference on PhD Research in Microelectronics and Electronics (PRIME 2005), 1 & 2, 295-298
Presented at:
International Conference on PhD Research in Microelectronics and Electronics (PRIME 2005), Lausanne, Switzerland, July 25-28, 2005
Year:
2005
ISBN:
0-7803-9345-7
Laboratories:




 Record created 2007-05-16, last modified 2018-03-17


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