Comparator

Details Comparator Comparator

1979-03-19

1982-02-16

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307355, 328147, H03K 524

Patent

active

043161057

ABSTRACT:
A comparator for comparing the relative magnitudes of first and second voltages and for providing a binary output indicative of which of the voltages is the greater. The voltages are applied sequentially to a capacitor during first and second periods respectively. An inverter has its input connected to the capacitor, and a voltage bias source applies a bias voltage to the input of the inverter in such a manner as to cause the output of the inverter to assume a predetermined voltage during the first period and a voltage either greater or less than the predetermined voltage during the second period, depending upon whether the first voltage is greater or less than the second voltage. A flip-flop is connected to the output of the inverter such as to be either set or reset in response to the output of the inverter being greater or less than the predetermined voltage during the second period.

REFERENCES:
patent: 3676702 (1972-07-01), McGrogan, Jr.

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