Digital voltage comparator

Details Digital voltage comparator Digital voltage comparator

1980-07-18

1982-11-09

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307279, 307362, 307530, H03K 5153, H03K 524

Patent

active

043586902

ABSTRACT:
A digital voltage comparator is illustrated including a cross-coupled latch 10 having input nodes 12 and 14. After the input nodes 12 and 14 of the latch 10 have been respectively preloaded to the input A and reference E voltage levels during the active state of clock phase .phi..sub.1, the latch is allowed to arrive at a stable state during the active state of clock phase .phi..sub.2. Thereafter, when clock phase .phi..sub.3 is active, the output of the latch 10 is coupled to the input of a single stage shift register 20. The output of the shift register 20 is fed to inverters 22 and 26 and through a voltage divider for preloading the node 14 of the latch 10 during the next active state of clock phase .phi..sub.1.

REFERENCES:
patent: 3955101 (1976-05-01), Amelio et al.
patent: 4070590 (1978-01-01), Ieda et al.
patent: 4097753 (1978-06-01), Cook et al.

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