Switched capacitor mixer/multiplier

Details Switched capacitor mixer/multiplier Switched capacitor mixer/multiplier

1987-04-22

1988-12-06

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307261, 307490, 307493, 328160, H03K 302, H03C 100, G06G 716

Patent

active

047898372

ABSTRACT:
A sequence of samples of a time varying signal is multiplied by respective, corresponding, multiplicands corresponding to values of a separate signal. The multiplicands are provided as ratios of capacitances switched into and out of a circuit between the input time varying voltage and an accumulating integrator. The arrangement is used to provide multiplication of a time varying signal by corresponding amplitudes of a sinusoid without requiring generation of a sinusoid. The arrangement is used for sampling, detecting signals utilizing a simulated local oscillator signal, and for generation of an arbitrary time varying function.

REFERENCES:
patent: 4616185 (1986-10-01), van Roermund

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