| 摘要 |
PROBLEM TO BE SOLVED: To obtain a drive control apparatus for a DC motor, which can be made simple and lightweight and whose space can be saved. SOLUTION: The DC motor 1 is driven by performing a switching operation, which repeats the turn-on/-off operation of its driving electric power. A motor generated voltage which is generated by the DC motor is taken out. On the basis of a correlation between the take-out motor generated voltage and the speed of rotation of the DC motor, the speed of rotation of the DC motor is monitored. The interval of the switching operation is adjusted, in such a way that its monitored result becomes a prescribed speed of rotation. Thereby, the drive of the DC motor is controlled. |
