| 摘要 |
PURPOSE:To realize the uninterruptible power supply system of a fully solid- state television transmitter in which broadcast is continued even after a commercial power supply is failed without affecting on the characteristic of a broadcast wave with small sized capacity configuration. CONSTITUTION:An uninterruptible power supply device 1 is provided with a battery 7, a rectifier charger 3 rectifying a commercial power supply and charging the battery, an inverter 4 inverting the DC power of the battery into a single phase AC, a 2-branch iron-resonant transformer 6 synthesizing two AC powers being a commercial power supply and an inverter output and a diode dropper 5 stepping down a DC voltage of the battery to a proper value. Furthermore, the full solid-state television transmitter 8 is provided with a transistor power amplifier power supply 13 used to drive a transistor power amplifier 14 receiving a power resulting from transforming and rectifying the commercial power supply and the power of the battery and with a small sized fan 11 driven by the power of the 2-branch iron-resonant transformer. |
