Active filter

Details Active filter Active filter

1975-11-21

1976-09-28

Rolinec, R. V.

Amplifiers

Signal feedback

Phase shift means in loop path

330108, 330109, 333 70CR, H03F 136

Patent

active

039835049

ABSTRACT:
An improved filtering circuit connected to the inverting terminal of an operational amplifier having connected in parallel a first resistor and three series capacitors. Two series resistors are connected in parallel with the center capacitor and the junction between the two series resistor is connected to a fixed potential.

REFERENCES:
patent: 3509482 (1970-04-01), Guillemin
patent: 3670254 (1972-06-01), Barzely
patent: 3742391 (1973-06-01), Smith

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