| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply device that well performs compliance in response to load variation, avoids overcharge to a storage battery using a simple configuration, obtains a stable output, and also prevents the deterioration of the storage battery. <P>SOLUTION: The device has: a power supply that generates electric power; a voltage converter that converts the output voltage output from a power supply connected to the power supply to a predetermined voltage; the storage battery that performs charge/discharge connected to the voltage converter in parallel; a rectifier that is connected in series between the voltage converter and storage battery and blocks a reverse flow of the output in the storage device; an internal state detector that detects an internal status of the storage battery; and a controller that controls operations of the voltage converter, wherein the controller controls a detected value detected by the internal status detector, at the maximum value defined in the storage battery or smaller is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT |
