Low-pass filter for low-frequency signals

Details Low-pass filter for low-frequency signals Low-pass filter for low-frequency signals

1980-02-01

1982-07-06

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328127, 328147, 328167, 330150, 307491, H03F 372, H03F 318, H03F 3183, H03L 700

Patent

active

043385303

ABSTRACT:
A low pass-filter for low frequency signals having first portions situated above on one side and second portions situated on the other side of an average value.
The filter comprises at least two integrators, each comprising a capacitor, included between the input and the output of a voltage-inverting amplifier, and a current source connected to said output, and three threshold comparators, of which the first one is connected to the input of the filter, of which the second one is included after the first integrator, and of which the third one is connected to the output of the filter.
The arrangement is used in logic circuitry.

REFERENCES:
patent: 3753159 (1973-08-01), Burwen
patent: 4215280 (1980-07-01), Mahig
patent: 4257006 (1981-03-01), Schaumann

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