Integrable frequency divider circuit having a feedback controlle

Details Integrable frequency divider circuit having a feedback controlle Integrable frequency divider circuit having a feedback controlle

1985-05-20

1986-03-18

Anagnos, Larry N.

Electrical pulse counters, pulse dividers, or shift registers: c

Particular input circuits for counter

377120, 307543, 307556, 330 85, 330259, 330260, H03K 2102, H03K 2140, H03K 2358, H03F 134

Patent

active

045773360

ABSTRACT:
Integrable frequency divider circuit, including a preamplifier in the form of a differential amplifier having a signal input for receiving signals to be processed, a reference input and two outputs, a frequency divider having divider stages including a first divider stage, each being in the form of identical series-connected flip-flop cells, the first divider stage having two inputs each being connected to a respective one of the two outputs of the differential amplifier for receiving the signals to be processed, an operational amplifier having an output directly connected to the reference input of the differential amplifier and having two inputs, two resistors each being connected between a respective one of the inputs of the operational amplifier and a respective one of the outputs of the differential amplifier, a capacitor connected between the inputs of the operational amplifier, and another capacitor connected between the output of the operational amplifier and reference potential.

REFERENCES:
patent: 3432763 (1969-03-01), Ingman
patent: 3988689 (1976-10-01), Ochi et al.
patent: 4309625 (1982-01-01), Takahashi
patent: 4315165 (1982-02-01), Shimizu et al.

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