Design of Setable Active Lossy Inductors

The general two-graph framework for designing series and parallel R-L imittances is presented. The transformation of passive LC-filters into active RC-circuits using signal-flow graphs in the two-graph version, is the basis of this method. The idea consists of using exclusively RC-elements and the newly introduced ’active switches’. A second novel idea is presented; it consists of the reduction of the complexity of the equivalent active circuits, i.e. reducing the number of active elements to reproduce the ’same’ circuit’s behavior, but at the cost of a reduction of the quality factor. SPICE simulation results are presented to show the viability of the proposed approaches.KeywordsActive InductorActive SwitchCurrent ConveyorSpice SimulationCurrent GraphThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.