Variable time-constant type differentiator

Details Variable time-constant type differentiator Variable time-constant type differentiator

1991-09-24

1993-06-01

Sikes, William L.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328142, 307490, 307493, 307494, H03K 500

Patent

active

052163750

ABSTRACT:
A variable time-constant differentiator comprises an operational amplifier t which a signal is inputted through a capacitor; and a variable transconductance amplifier connected between an input terminal to which a signal is applied and an 5 output terminal.

REFERENCES:
patent: 3581215 (1971-05-01), Meyer
patent: 3621407 (1971-11-01), Low
patent: 3633044 (1972-01-01), Buckstad
patent: 3792367 (1974-02-01), Fleischer et al.
patent: 3969682 (1976-07-01), Rossum
patent: 4013975 (1977-03-01), Kataoka et al.
patent: 4071777 (1978-01-01), Herrmann
patent: 4354162 (1982-10-01), Wright
patent: 4374335 (1983-02-01), Fukahori et al.
patent: 4506174 (1985-03-01), Hitt
Millman et al., "Pulse, Digital, and Switching Waveforms", 1965, pp. 15-18, 28 and 38-50.

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