Loss-Free Gyrator Realization

Realization of a loss-free time-variable gyrator (TVG) based on the POPI concept is presented. The POPI is a “black box” without source elements, in which the instantaneous output power equals the input. A method based on a controlled time-variable transformer is presented. It is interesting to note that based on the same method, transformer realization by means of a single-controlled gyrator can be achieved. Synthesis based on switched-mode power conversion circuits is discussed. A gyrator consisting of a circuit of such type has been constructed. The application of very efficient gyrators is expected to be of importance in power processing networks.