Variable electronic resistor having parallel phase-inverted vari

Details Variable electronic resistor having parallel phase-inverted vari Variable electronic resistor having parallel phase-inverted vari

1996-07-03

1998-02-17

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

327361, 330254, 330278, H03L 500

Patent

active

057195188

ABSTRACT:
A variable electronic resistor (16), which can be varied by a control signal (Ust) at the control input (15), contains two parallel, signal paths (1 and 2) with identical components, of which one signal path carries a phase inverted input transmission signal and the other signal path carries a non phase inverted input transmission signal and which are additively joined at the output side. Each signal path contains a charge carrier channel (3) and a signal transmission stage (7) with a low impedance current input, located downstream of the output electrode (5) in the signal path of the charge carrier channel. The resistor of the charge carrier channel can be varied by a control voltage (Ust), which is common to both charge carrier channels, in a control electrode (14) of the semiconductor components (4).

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