Input signal processing circuit formed as an integrated circuit

Details Input signal processing circuit formed as an integrated circuit Input signal processing circuit formed as an integrated circuit

1979-06-12

1982-03-02

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307271, 328 48, 328 71, 328147, H03K 524

Patent

active

043180124

ABSTRACT:
An input signal processing circuit formed as an integrated circuit is provided with power supply terminals of plus and minus potentials, a voltage dividing terminal connected to a voltage dividing point between the power supply terminals, and an input terminal applied thereto with an external operation signal. A discriminator circuit is included in the input signal processing circuit to determine whether a signal potential applied to the input terminal is above or below the divided voltage potential and to switch over an operating state of a circuit block contained within the input signal processing circuit to another operating state depending on the results of the determination.

REFERENCES:
patent: 3675045 (1972-07-01), Mullaly
patent: 4121122 (1978-10-01), Pokrandt

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