| 摘要 |
PROBLEM TO BE SOLVED: To reduce a burden imposed on a commercial power source, attain size reduction and weight reduction, reduce an electromagnetic noise evaitted from the wiring of the commercial power source, and effectively use a secondary battery to be used. SOLUTION: This driving device is constituted by having a motor M to open and close a curtain, an operation part 4 to operate opening-closing of the curtain, an opening-closing control part 6 to control opening-closing and stopping of the curtain, a speed setting part 5 to set opening-closing speed of the curtain, a speed control part 7 to perform speed control to make opening-closing speed coincide with preset speed of the speed setting part by detecting opening-closing speed of the curtain and an electric power supply part 1 to supply electric power necessary for driving of the motor. In this case, the electric power supply part 1 is provided with a secondary battery E capable of repeating charge-discharge, a charging circuit part 10 to store electric energy from a commercial power source AC in the secondary battery, an opening-closing part 11 to cut off connection of the secondary battery and the charging circuit part, a charge-discharge monitoring part 12 to monitor charge-discharge of the secondary battery, a charge-discharge control part 8 and a charging system switching operation part 9. |
