| 摘要 |
PROBLEM TO BE SOLVED: To provide a driver for a DC motor which can contrive the downsizing and the cost reduction of itself. SOLUTION: This driver comprises a switching power circuit 16 which is connected to a power source 18 for AC, a charger 20 which charges a chargeable battery 22 by a small DC current from the switching power circuit 16, and a drive circuit 14 which drives a brushless DC motor 10 by the DC voltage supplied from the chargeable battery 22. |
