Comparator circuit having hysteresis voltage substantially indep

Details Comparator circuit having hysteresis voltage substantially indep Comparator circuit having hysteresis voltage substantially indep

1983-09-06

1985-12-03

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307362, 307567, H03K 5153

Patent

active

045568057

ABSTRACT:
A comparator circuit provided with a hysteresis characteristic comprises an amplifier comparing an input voltage with a reference voltage, a voltage-clamping circuit clamping the output voltage of the amplifier at a first stabilized voltage or at a second stabilized voltage in response to the comparison output of the amplifier, and a feedback circuit generating a first feedback voltage or a second feedback voltage as the reference voltage in response to the output voltage level of the amplifier, whereby the hysteresis voltage of the comparator circuit is substantially independent of the variation in a power supply voltage for actuating the comparator circuit.

REFERENCES:
patent: 3309618 (1967-03-01), Harris et al.
patent: 3916328 (1975-10-01), Wilson

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