Magnetic field sensor

Details Magnetic field sensor Magnetic field sensor

1983-11-14

1986-08-19

James, Andrew J.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

357 34, 357 43, 357 61, 307309, 324252, H01L 2722

Patent

active

046072713

ABSTRACT:
The magnetic field sensor is composed of a semiconductor magnetic field sensor, for example a magnetotransistor, and at least one NiFe or NiCo film disposed upon its surface. This film functions as a zero-crossing switch utilizing its magnetic induction/magnetic field-reversal hysteresis properties. The film is deposited immediately above the field sensitive zone of the magnetic field sensor with its easy axis oriented perpendicularly to the direction of current flow of the sensor. The semiconductor magnetic field sensor detects the magnetic induction generated by the film.

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Baltes et al, "Magnetic Field Micro-Sensor Based on Magneto-Resistive Comparators", Proc. Sensor '82, ed. Durst et al, Jan. 82, pp. 176-186.

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