Class of floating, generalised, positive/negative immittance convertors/inverters realised with operational mirrored amplifiers

Through a systematic formulation based on nullors, a class of eight generalised positive/negative floating impedance (FI) configurations, realisable with four operational mirrored amplifiers (OMAs) and only three passive elements, is derived. The advantages offered by the proposed configurations are not simultaneously available in any of the previously known FI configurations employing opamps, current conveyors or OMAs. The feasibility of the new formulations together with some of their applications, have been confirmed by SPICE simulations