| 摘要 |
PURPOSE:To enable to obtain the high voltage at the secondary winding even with a small-sized transformer by a method wherein after a capacitor is charged, the discharge current thereof is made to flow through an LC resonance circuit to make the LC resonance circuit to perform resonance at the high voltage. CONSTITUTION:When an input is applied from an AC electric power source E to a bridge DB through a choke CH1, the capacitor C1 is charged with a DC voltage from the bridge DB. When the voltage between the both ends of the capacitor C1 exceeds the breakover voltage of a DIAC DI, the electric charge of a capacitor C3 flows to the gate of a switching element S to make the switching element S to ON- state. The electric charge of the capacitor C1 is discharged through a choke CH2, and the LC resonance circuit Q performs LC resonance. Accordingly the high voltage is generated between terminals a, b of the secondary winding e2. |
