| 摘要 |
PURPOSE:To improve the input power factor by connecting the power storage capacitor to the output of a rectifier through the first inductor, and further connecting an inverter through the second inductor and a filter. CONSTITUTION:The output of a rectifier 2 is connected to a power storage capacitor 41 through an inductor 33, an inverter 53 is connected through a high frequency filter having inductors 31, 33 and a capacitor 32, the collector of a transistor 52 is connected to one terminal of the capacitor 41 through a diode 43 to form a power feedback power source. Therefore, since a smoothing capacitor is not used in the rectifier, the input power factor can be increased, and since the inductor 31 is inserted to the discharging passage of the capacitor 41, the ripple of the discharging current can be reduced, and the reverse voltage applied to the diode 43 can be reduced. |
