Power supply device

Abstract

A power supply device including: (a) a power supply unit group composed of a plurality of power supply units and connected with a power consuming appliance; and (b) a control device configured to control the power supply unit group, wherein the control device and each of the power supply units are connected to each other by a communicating circuit.

The application is claimed as follows: 
     
         1 . A power supply device comprising:
 (a) a power supply unit group composed of a plurality of power supply units and connected to a power generating device; and   (b) a control device configured to control the power supply unit group, the control device having a display device and a selecting device, wherein   the display device displays a state of power generation of the power generating device and a state of charge and discharge of each of the power supply units, and   on a basis of a selection from the selecting device, the control device selects a power supply unit to supply power from the power generating device to the selected power supply unit and charge the power supply unit.   
     
     
         2 . The power supply device according to  claim 1 , wherein the power generating device and the power supply unit group are connected to each other via a radio power transmission circuit. 
     
     
         3 . A power supply device comprising:
 (a) a power supply unit group composed of a plurality of power supply units and connected with a power consuming appliance; and   (b) a control device configured to control the power supply unit group, the control device having a display device and a selecting device, wherein   the display device displays a state of power consumption of the power consuming appliance and a state of charge and discharge of each of the power supply units, and on a basis of a selection from the selecting device, the control device selects a power supply unit to supply power from the selected power supply unit to the power consuming appliance.   
     
     
         4 . The power supply device according to  claim 3 , further comprising
 a power generating device connected to the power supply unit group, wherein   the display device displays a state of power generation of the power generating device, and   the control device selects a power supply unit on a basis of a selection from the selecting device to supply power from the power generating device to the selected power supply unit and charge the power supply unit.   
     
     
         5 . The power supply device according to  claim 4 , wherein the power generating device and the power supply unit group are connected to each other via a radio power transmission circuit. 
     
     
         6 . A power supply device comprising:
 (a) a power supply unit group composed of a plurality of power supply units; and   (b) a control device configured to control the power supply unit group, the control device having a display device and a selecting device, wherein   the display device displays a state of charge and discharge of each of the power supply units, and   on a basis of a selection from the selecting device, the control device selects a power supply unit to output power and a power supply unit to receive power, and makes power transferred from the selected power supply unit to output power to the selected power supply unit to receive power.   
     
     
         7 . The power supply device according to  claim 1 , further comprising
 a portable terminal including a display device,   wherein the control device and the portable terminal are connected to each other by a communicating circuit.   
     
     
         8 . The power supply device according to  claim 7 , wherein mutual authentication is performed between the control device and the portable terminal at a time of connection, a cryptographic key is shared between the control device and the portable terminal, and communication encrypted by the cryptographic key is performed between the control device and the portable terminal.