In this chapter, it is explained that not only the magnetically coupled inductors but also all inductive power transfer systems (IPTSs) inherently have the nature of a gyrator. Widely known characteristics of IPTSs such as impedance inversion and source‐type conversion are proved to be the nature of the gyrator. A graphical approach that utilizes the gyrator is explained for the modeling of IPTSs in general. The proposed graphical technique enables manipulations on the circuit diagram instead of on the circuit equations, which are difficult to handle when the system order is higher than 4. Hence, the equivalent model can be obtained almost by inspection conveniently, giving fruitful physical insights that are limitedly achieved with equation manipulations. Steady‐state analyses at any frequency are possible and equivalent series resistances can also be included in the proposed model. Five selected electrical characteristics, that is, source‐to‐load gain, load‐independent output voltage/current characteristics, power factor at the source, sign of the source phase angle, and allowances of open/short loads are evaluated for three widely used IPTS topologies. Also, this technique is extended to the mistuned case for verifying the general use of the approach. An experiment for the voltage‐source‐type inductor–capacitor–inductor secondary‐parallel (V‐LCL‐P) topology is demonstrated for the cases of both perfectly tuned and mistuned situations at 85 W and 100 kHz.

    This chapter is based on the paper by Y.H. Son, B.H. Choi, G.‐H. Cho, and Chun T. Rim, “Gyrator‐based analysis of resonant circuits in inductive power transfer systems,” IEEE Trans. on Power Electronics, vol. 31, no. 10, pp. 6824–6843, October 2016.


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    Titel :

    Gyrator Circuit Model


    Beteiligte:
    Rim, Chun T. (Autor:in) / Mi, Chris (Autor:in)


    Erscheinungsdatum :

    2017-07-11


    Format / Umfang :

    31 pages




    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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