One OA and one NIC-based grounded inductance simulators

Abstract

Operational amplifiers (OA) are used as active component in many applications such as inductor simulators, adders, integrators, differentiators, filters, oscillator, amplifiers, analogue-to-digital converters, and digital-to-analogue converters. An OA has two input terminals, two DC power supply terminals and one output terminal. An OA has the input and output relationship as Vout = Ao (Vinp1 - V inp2), where Ao is frequency-dependent, open loop, voltage gain. The Vout as an output voltage is a function of V inp1 applied to non-inverting terminal and Vinp2 applied to inverting terminal of the OA. The two kind of negative impedance converters (NIC), also known as current inversion type NIC and voltage inversion type NIC.