An Active-C Realization for Simulating Electronically Controllable Lossy Grounded Inductance

Abstract

Proposed work describes a new grounded lossy inductance (grounded parallel RL network) simulator configuration employing two Dual-output voltage-differencing buffered amplifiers (DO-VDBA) along with single capacitance. The presented circuit configuration is purely resistor-less active realization (Active-C realization) with electronic tuning of both inductive as well as resistive part through the transconductance of employed DO-VDBAs. The electronic tuning of inductive part is independent to the resistive part which is an important advantage. The presented realization is completely free from matching conditions and its non-ideal behaviour is satisfactory. To understand the high frequency performance of simulated lossy inductance its behaviour is studied considering terminal parasitcs of DO-VDBAs. The usefulness of developed circuit is authenticated by developing a second order voltage-mode high-pass filter design example. All the designed circuits are simulated in PSPICE environment.