| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive-control apparatus for controlling plural electric motors, using an arithmetic unit having low processing capacity by reducing a calculation load. SOLUTION: In the drive-control apparatus of an electric motor for commonly performing the current feedback control of two electric motors 101 and 121, using a single digital calculation means, the calculation period of current feedback in the digital calculation means is set to (n) times larger than the output period in the digital output, and current feedback calculations to each electric motor is made with a timing, such that they do not overlap each other. The current feedback calculations, having a heavy load is performed by a calculation period, that is (n) time larger tan the digital output period of PWM or the like for drastically reducing the calculation load, and are subjected to an operation at each different timing, thus dispersing the operation load with time. |
