Two-terminal-pair network simulating an inductance

Abstract

A two-terminal-pair circuit which simulates an inductance includes input and output terminal pairs and a first ohmic resistor. The voltage-carrying terminal of the input terminal pair is connected to one terminal of the first ohmic resistor. The circuit includes a bridge circuit having bridge branches and two opposite bridge diagonal terminals, two capacitors each connecting a respective one of the two bridge diagonal terminals to a respective one of the terminals of the first ohmic resistor, and a difference amplifier having two inputs each connected to a respective one of the two bridge diagonal terminals. The output of the difference amplifier is connected to the base of a transistor whose collector-emitter path is connected in one of the bridge branches in series with an effective resistor or with a parallel circuit comprising a capacitive reactance and an effective resistor. The emitter of the transistor is connected to the other terminal of the first resistor, and the collector of the transistor forms the voltage-carrying terminal of the output terminal pair.

Dependencies are inferred from the claim text.