Energy may be transferred resonantly between two capacitors by a circuit with a
suitable closing switch and inductor. If a second LC loop is added, energy can then
be transferred into the third capacitor via the second closing switch. If the
√
LC
resonant period of the second loop is made shorter, the energy transfer occurs in a
shorter period and with a higher associated peak current. Figures 13.5 and 13.6 show
the generalised LC circuit and waveforms, respectively.With reference to Figure 13.5,
the time constant of the first loop is given by: