Floating Positive and Negative Inductance Simulators Based on OTAs

This paper reviews 2 circuits which are floating positive and negative inductance simulators using Operational Transconductance Amplifiers (OTAs). The simulated inductance values can be controlled electronically by adjusting the bias current of the OTA. Each inductance simulator comprises only 2 OTAs and 1 grounded capacitor without any external resistor and component matching requirements. The circuit performances are depicted through PSPICE simulations, they show good agreement to theoretical anticipation. Some applications as resonant circuit and inductance cancellation circuit are included to confirm the usability of proposed circuits.