| 摘要 |
PURPOSE:To increase the impedance of the input side of a dark angle portion eliminating device so as to maintain the high frequency component of the device to fill up the valley portion effectively by providing independent capacitors in parallel to a rectifier in the input side of the said device. CONSTITUTION:A commercial 100V AC power applied to a rectification circuit 1 is rectified with a rectifier 2 and supplied to the output circuit 3. In the output circuit 3, a dark angle portion eliminating device 6 consisting of a coil L1, a capacitor C3 and diodes D1, D2 is provided. And independent capacitors C1, C2 are provided in parallel to the reactifier 2 at input side positions of the said device 6. Thereby the impedance of the input side of the dark angle portion eliminating device can be increased to enhance the function of the said device as the high frequency source and to complement its function as the filling up of the low current portion in the dark angle portion. |
