Analog multiplier based sample and hold network

Details Analog multiplier based sample and hold network Analog multiplier based sample and hold network

1989-07-28

1990-08-21

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307358, 307494, 328151, G11C 2702

Patent

active

049509233

ABSTRACT:
A sample and hold network is provided having an analog multiplier that multiplies the analog input signal by a sinusoidal strobe signal to produce a multiplied signal. The multiplied signal is filtered by a bandpass differentiating filter and is combined in a differential amplifier with the analog input signal to yield a periodically sampled and held version of the analog input signal. The bandpass differentiating filter attenuates or eliminates undesirable DC and frequency components.

REFERENCES:
patent: 3550021 (1970-12-01), Freeny
patent: 3743947 (1973-07-01), Fixler et al.
patent: 3781694 (1973-12-01), Lefevre et al.
patent: 4717837 (1988-01-01), Garuts

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