| 摘要 |
PROBLEM TO BE SOLVED: To provide a charger and discharger which can efficiently accumulate electricity, even when the magnitude of the electrical energy supplied from a power input part fluctuates, as is the case when a photoelectric converter, such as a solar battery, is used as the power source. SOLUTION: This charger and discharger possesses a power input part; a voltage detector which detects the supply voltage from the power input part, two or more electrochemical double-layer capacitors which accumulate the electric energy taken in from the above power input part; a capacitor connection switching means which switches the connection system of the electrochemical double-layer capacitor by the output signal from the voltage detector; a rectifier which prevents the electrical energy of the above electrochemical double-layer capacitor from flowing in reverse to the above power input part; a load output part which outputs the electrical energy accumulated in the above electrochemical double-layer capacitor; and an output switching part which switches the connection system of the electrochemical double-layer capacitor by the magnitude of the power voltage of the load. COPYRIGHT: (C)2006,JPO&NCIPI
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