The closed loop resonance series circuit which includes with the capacitor and the inductor and load and the change device which possesses the opposite parallel diode is included, the high frequency resonance device is explained. Energy source, is connected to the closed loop series circuit. In addition this high frequency resonance device, just the time when it is longer than 1 cycles of the closed loop resonance series circuit changes and includes the controller in order to turn on the device. Selective figure Figure 1A
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