Variable electronic impedance circuit

Details Variable electronic impedance circuit Variable electronic impedance circuit

1982-08-30

1985-06-25

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307296R, 307493, 307494, 307362, H03K 3023, H03K 1716

Patent

active

045256365

ABSTRACT:
A variable electronic impedance circuit contains a voltage-current converter having an input terminal which is supplied with an input signal voltage, and a variable-gain current amplifier having an input terminal which is supplied with an output current of the voltage-current converter. The output signal current of the amplifier is fed back to the input terminal of the voltage-current converter.
In order to prevent undesirable oscillation immediately after the closure of a power supply switch, the variable electronic impedance circuit includes a control circuit which substantially inhibits the operation of the voltage-current converter for a predetermined time after the closure of the power supply switch.

REFERENCES:
patent: 4066914 (1978-01-01), Gundry
patent: 4288707 (1981-09-01), Katakura

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