Absolute value circuit

Details Absolute value circuit Absolute value circuit

1980-11-04

1982-12-07

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307261, 328 26, 328158, H03K 524

Patent

active

043629563

ABSTRACT:
An absolute value circuit capable of providing, through an output terminal, a signal corresponding to the absolute value of the difference between a first input signal and a second input signal, comprises a first circuit, a second circuit and a uni-directional circuit.
The first circuit is adapted for subtracting a current corresponding to said second input signal from a current corresponding to said first input signal and for supplying to said output terminal a current of one direction corresponding to the result of said subtraction in case said result is positive, or a current of the other direction corresponding to the result of said subtraction in case said result is negative.
The second circuit is adapted for subtracting a current corresponding to said first input signal from a current corresponding to said second input signal and for supplying to said output terminal a current of one direction corresponding to the result of said subtraction in case said result is positive, or a current of the other direction corresponding to the result of said subtraction in case said result is negative.
The uni-directional circuit is adapted for transmitting either one of said current of said one direction and said current of said the other direction supplied from said first and second circuit.

REFERENCES:
patent: 4069460 (1978-01-01), Sauer
patent: 4158882 (1979-06-01), Citta

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