Switched capacitor function generator

Details Switched capacitor function generator Switched capacitor function generator

1986-06-16

1988-06-28

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328167, 328160, 328127, 307529, 307520, G06G 700, H03B 100, A03K 500

Patent

active

047542268

ABSTRACT:
An analog function generator useful in providing a variety of functions for analog signal processing applications includes a pulse width modulator and a switched capacitor operational amplifier. Capacitors in the input of the operational amplifier and in the feedback loop of the operational amplifier are selectively switched by the output of the modulator to create output voltages of the amplifier that are polynomial, logarithmic or exponential functions of the input voltages to the amplifier and pulse width modulator.

REFERENCES:
patent: 4315227 (1982-02-01), Fleischer et al.
patent: 4331894 (1982-05-01), Gregorian et al.
patent: 4354169 (1982-10-01), Nossek
patent: 4404525 (1983-09-01), Amir et al.
patent: 4453143 (1984-06-01), Bennett
patent: 4468749 (1984-08-01), Kato
Young et al., "MOS Switched-Cap. Analog Sampled-Data Direct-Form Filters", IEEE Journals of Solid State Circuits, vol. SC-14, No. 6, Dec. 1979, pp. 1020-1033.

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