Applications of series resonant power supply in Tesla transformer

A circuit topology which can prevent the series resonant power supply in a Tesla transformer from damage induced by the reversal voltage on the storage capacitor is presented. The circuit is based on current-limiting resistor and auxiliary capacitor which can restrict the over current in the rectifier of series resonant power supply. Moreover, adoption of the auxiliary capacitor can raise the average power output of the power supply due to the increase of initial voltage on the storage capacitor. When reversal voltage on the storage capacitor is zero and the auxiliary capacitor is one quarter of the storage capacitor, analysis shows the average power output can be raised 33%. Computation of charging accuracy and optimization of current-limiting resistance are also discussed.