Signal processing circuit

Details Signal processing circuit Signal processing circuit

1981-02-23

1983-09-20

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330302, H03F 345

Patent

active

044059019

ABSTRACT:
An arrangement for coupling an AC input signal having a DC component to a plurality of differential amplifiers without causing a DC off-set. The AC input including a DC component is commonly fed through a compensation resistor to a signal input terminal of each of the differential amplifiers. The DC component contained in the AC input signal is extracted by a low-pass filter including a resistor and a capacitor and is applied to a bias input terminal of each of the differential amplifiers.

REFERENCES:
patent: 3831117 (1974-08-01), Fletcher et al.
patent: 4296381 (1981-10-01), Hofer

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