Gyrators Application in Power Processing Circuits

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The gyrator is a lossless two-port network which transforms one-port networks into its dual with respect to its gyration conductance. For example, capacitance at the gyrator output is viewed as inductance at the input and a voltage source is transformed to a current source. The gyrator can be applied for power processing, including bidirectional ac/dc conversion, var generation, and voltage sources coupling with high stability of the operating point. Such need arises in cases in which the load exhibits voltage source behavior (e.g. storage batteries, electrical arcs). A basic approach for efficient gyrator realization is presented, based on a general lossless power processing circuit, operated with a combination of current- and voltage-controlled feedback loops. Practically the classical switching cells (buck, boost, buck-boost) as well as many other switched mode power conversion circuits can be applied as approximated power processing circuits required for gyrator realization.

Original languageEnglish
Pages (from-to)313-318
Number of pages6
JournalIEEE Transactions on Industrial Electronics
Issue number3
StatePublished - Aug 1987


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