| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cell power supply device for inhibiting power interruption to a load when exchanging a battery and capable of serving as a replacing cell power supply device for a current battery until it is replaced because of deterioration of output voltage. <P>SOLUTION: A cell power supply device for supplying power to a battery driven load, includes: at least two power supply systems having a switch and a battery serially connected, for connecting the load in parallel; a voltage detection part connected to these power supply systems in parallel, for detecting the drop of the inter-terminal voltage of the load to a prescribed setting value and outputting a voltage drop detection signal; and a switch controlling part for performing switching on or off of the power source voltage so as not to shutdown the power source voltage applied to the load even when switching on the other power system in a state when the power system switch with dropped output voltage is switched on depending on the voltage drop detection signal output from the voltage detection part. <P>COPYRIGHT: (C)2012,JPO&INPIT |
