Resonant Circuit Analysis Theories

For the analysis of a generalized IPT system, the modeling of the two coupled coils is essential. Let us first consider the situation shown in Fig. 3.1. Note that the polarity of the coils is shown by the dot in the figures, and the definition of currents at the primary and secondary coils is symmetrical. There are two different conditions for the coupled coils, with the secondary side dot at the upper and lower side.