CCII-based inductance simulators for mechanical oscillation control

Giuseppe Ferri; Nicola Guerrini

doi:10.1117/12.608077

Abstract

In this work we present active inductance simulators developed for the control of the mechanical oscillation of a metallic beam. It is possible to reduce the amplitude of these oscillations by subtracting energy to the beam itself. The conversion from mechanical to electrical energy can be done through a piezo-electric sheet connected to the metallic beam. The equivalent circuit is a classical RLC resonating circuit. The required inductance value depends on the oscillating mode that we want to control and can be of hundreds and, in some cases, thousands of Henry (H). A series resistance compensation can help in attenuating the beam vibrations. The solutions proposed in this work allow the implementations of simple circuits, with particular symmetries, which can be also suitable for integrated applications once an integrated CCII is designed. In the literature, circuit implementations performing equivalent inductances are typically based on amplifiers (for example, Antoniou's circuit). Our solutions are based on second generation current conveyors (CCIIs) and allow to obtain both grounded and floating equivalent inductances, of about 1000 H values, working within a regulated frequency range of 3-4 decades.

Citation Download Citation

Giuseppe Ferri, Giuseppe Ferri, Nicola Guerrini, Nicola Guerrini, } "CCII-based inductance simulators for mechanical oscillation control", Proc. SPIE 5837, VLSI Circuits and Systems II, (30 June 2005); doi: 10.1117/12.608077; https://doi.org/10.1117/12.608077

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