UNINTERRUPTIBLE POWER SUPPLY APPARATUS

摘要

An uninterruptible power supply apparatus includes a power supply unit converting AC power to generate a DC voltage to be supplied to a loading device. The uninterruptible power supply apparatus further includes a first battery unit connected to the power supply unit to receive a DC current therefrom, and stores first DC power generated from the DC voltage. The first battery unit generates a DC voltage to be supplied to the loading device from the first DC power. The uninterruptible power supply apparatus includes a second battery unit connected in parallel to the power supply unit and stores second DC power, and generates, from the second DC power stored in the second battery unit, a DC voltage to be supplied to the loading device. The uninterruptible power supply apparatus further includes a controller for controlling operation of the power supply unit, the first battery unit and the second battery unit.

主权项

1. An uninterruptible power supply apparatus, comprising:
a power supply unit that converts AC power to generate a DC voltage to be supplied to a loading device; a first battery unit that is connected to the power supply unit to receive a DC current therefrom, the first battery unit having a first battery for storing first DC power, and generates, from the first DC power stored in the first battery, a DC voltage to be supplied to the loading device when the supply of the AC power to the loading device is discontinued; a second battery unit that is connected in parallel to the power supply unit, has a second battery for storing second DC power, and generates, from the second DC power stored in the second battery, a DC voltage to be supplied to the loading device in accordance with a load status of the power supply unit; and a controller that controls operation of the power supply unit, the first battery unit and the second battery unit in a correlated manner in accordance with an amount of power required by the loading device.