| 摘要 |
PURPOSE:To easily prevent momentary interruption from being generated, by connecting a capacitor charged with voltage lower than the DC voltage of rectified AC, to a rectifier in parallel with each other, via a reverse-current blocking diode, and by driving a stabilized power source at the times of service interruption and non-service-interruption. CONSTITUTION:The AC 12 of 100V is rectified 13, and with the direct current of the peak voltage of 140V, via a reverse-current blocking diode 16, a stabilized power source is driven. A battery 14 is charged with 110V through the output of a rectifying section 13 via a charging section 21 and a reverse-current blocking diode 22. At the time of nonservice-interruption, by the output of the rectifying section 13, a stabilized power source section 15 is driven, and an inverter 18 is energized, and the output 20 of alternating current is generated, and through the charging section 21, the storage battery 14 is charged. When the AC 12 is sevice-interrupted, then power is fed from the storage battery 14, and the stabilized power source 15 is driven, and via the inverter 18, the output 20 of the alternating current is generated. As a result, a power source switch- relay is not needed, and even if the AC 12 is service-interrupted, the momentary interruption of output is prevented easily and exactly from being generated. |
