Realisation of single-resistance-controlled lossless floating inductance

Raj Senani
  • Electronics Letters, January 1978, the Institution of Engineering and Technology (the IET)
  • DOI: 10.1049/el:19780560

What is it about?

A new three op-amp based circuit is presented which simulates a floating lossless inductor whose value can be varied through a single variable resistance. The circuit employs a grounded capacitor as preferred for IC implementation.

Why is it important?

It was demonstrated for the first time that three op-amp based simulation of a lossless floating inductor having the capability of providing a single-resistance controllable variable inductance is possible while employing a grounded capacitor.


Professor Raj Senani
Netaji Subhas Institute of Technology

It was shown how a 3-port lossless gyrator could be synthesised using three unity gain summing and difference amplifiers each of which was realised with a single opamp and four equal valued resistances.

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The following have contributed to this page: Professor Raj Senani and Professor Raj Senani