Dynamic filter

Details Dynamic filter Dynamic filter

1976-05-10

1977-03-08

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307237, 328167, 330107, H03K 1702, H03B 100, H03F 136

Patent

active

040114660

ABSTRACT:
A low noise resonant filter of wide dynamic range and low distortion is formed from a number of series-connected filter stages, each comprising a current integrating amplifier driven from transconductance formed from a bipolar differential pair with feedback to one member of the transconductance pair to maintain its transconductance substantially constant. A further bipolar differential pair transconductance at the input stage operates with a widely variable transconductance and provides soft limiting and wide dynamic range, especially when the filter is operated in the resonant mode.

REFERENCES:
patent: 3805091 (1974-04-01), Colin
patent: 3924199 (1975-12-01), Pearlman

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