Control amplifier

Details Control amplifier Control amplifier

1987-09-23

1989-04-25

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330151, H03G 300, H03F 345

Patent

active

048251763

ABSTRACT:
Electronic gain control is achieved by means of a differential controller in combination with a multistage, feedback amplifier. Both the input impedance and the output impedance have a low ohmic value, so that the influence of parasitic capacitances in the differential controller on the bandwidth is significantly reduced.

REFERENCES:
patent: T886006 (1971-05-01), Nichols

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