Multiple-time-constant integrator or differentiator

Details Multiple-time-constant integrator or differentiator Multiple-time-constant integrator or differentiator

1974-12-06

1977-08-16

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307229, 307260, 307265, 307255, 328127, H03K 513, H03K 1760

Patent

active

040428427

ABSTRACT:
A first pulse generator supplies an RC circuit including a first and second resistance and a capacitance. The voltage across the capacitance constitutes the output voltage. To decrease the time constant, a second pulse generator identical to the first is switched in between reference potential and the common point of the two resistors. The first pulse generator includes a first and second transistor connected in series between a first and second reference potential and a logic circuit which alternately drives the transistors to the conductive state thereby alternately connecting the common point of the two transistors to the first and second reference potential. The second pulse generator is identical to the first except that the logic circuit driving the two transistors also includes a state wherein both transistors are blocked causing the common point of the two transistors which is also the common point of the two resistances to be disconnected from both reference potentials.

REFERENCES:
patent: 3665091 (1972-05-01), Hirano
patent: 3703649 (1972-11-01), Maida
patent: 3875428 (1975-04-01), Le Blanc et al.
patent: 3924505 (1975-12-01), Schrecongost

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