ACTIVE RC FILTER Russian patent published in 1994 - IPC

Abstract RU 2019023 C1

FIELD: radio engineering. SUBSTANCE: active RC filter has first, second, third and fourth operational amplifiers, first and second capacitors, first, second, third, fourth, fifth, sixth, seventh, eighth and ninth resistors. Operation of RC filter is based on insertion of supplementary circuits of operational amplifiers which leads to reduction of noise. EFFECT: reduced level of noise. 1 dwg

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RU 2 019 023 C1

Authors

Grishin S.V.

Krutchinskij S.G.

Dates

1994-08-30—Published

1990-04-26—Filed