Differential sample and hold circuit

Details Differential sample and hold circuit Differential sample and hold circuit

1979-06-08

1981-04-21

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

328151, G11C 2702

Patent

active

042635217

ABSTRACT:
An angle servo preamplifier for use in the tracking antenna servo drive sem of a precision tracking radar system. The angle servo preamplifier processes tracking error signals indicative of tracking antenna pointing errors with respect to a target. The preamplifier is comprised of an input differential amplifier stage, a phase control stage, a sample and hold stage and a power amplifier stage. In addition, interfacing circuitry is included for coupling the preamplifier to the azimuth/secant correction system of the tracking radar system. The sample and hold stage includes "deglitching" circuitry for suppressing sampling/switching transients. And, to accommodate a bipolar tracking error signal while utilizing a single voltage supply, the power amplifier stage performs d.c. level translation.

REFERENCES:
patent: 3586880 (1971-06-01), Fitzwater, Jr.
patent: 3696305 (1972-10-01), Mitchell et al.
patent: 3750036 (1973-07-01), Burrows et al.
patent: 3820033 (1974-06-01), Iwata

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