Low pass active filter

Details Low pass active filter Low pass active filter

1979-01-19

1981-09-29

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including d.c. feedback bias control for stabilization

330294, 330295, 330296, 330306, H03F 304

Patent

active

042925991

ABSTRACT:
A low pass active filter comprises multiple stages including multiple active devices, circuitry including resistance and capacitance AC coupling the stages in series sequence, and high impedance biasing resistance coupled between the first and last stage inputs, whereby the DC operating point is determined by one active device.

REFERENCES:
patent: 3475561 (1969-10-01), Krasin et al.
patent: 3541463 (1970-11-01), Zai
patent: 3863173 (1975-01-01), Scheib et al.

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