Two terminal Hall-sensor

Details Two terminal Hall-sensor Two terminal Hall-sensor

1980-05-27

1983-02-15

Miller, Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307297, 323294, 323368, H03K 301, H03K 1918

Patent

active

043743331

ABSTRACT:
An integrated circuit includes a Hall-element, a voltage regulator, and a threshold detector. DC power is supplied through a pair of terminals that may be connected to a remote DC voltage source. A switchable constant current sink circuit connected across these terminals is turned on and off in response to the two output states of the threshold detector that in turn is responsive to the Hall-element output voltage. Thus the DC current flowing in the two DC supply lines is a predictable large value or small value corresponding to a low and a high magnitude magnetic field at the sensor, even when the supply DC voltage changes over a wide range.

REFERENCES:
patent: 3388318 (1968-06-01), O'Brien
patent: 3660696 (1972-05-01), Rittmann
patent: 3816766 (1974-06-01), Anselmo et al.
patent: 3935481 (1976-01-01), Uchikawa
New Electron, vol. 12, No. 18, 9/79, Hall Switch Operation Over Two Wires.

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