| 摘要 |
PURPOSE:To perform speed control of a high performance motor with a reduced number of memories by reducing substantially the number of necessary memories in a motor speed controller using a memory. CONSTITUTION:A compensating means 4 produces a control signal (c) operating according to a detected signal (b) of a speed detector 3 to drive a motor 1 by a power amplifier 8. A rotational error-computing means in the compensating means 4 obtains a digital rotational error operating according to a detected digital signal of the speed detector 3 for every detecting action of said speed detector 3. Said compensating means 4 performs actions of a rotational error- computing means and a control signal-producing means prior to those of a stored value-preserving means, immediately after the speed detector 3 has obtained a new detected digital signal. Also, when a stable-state judging means judges that this apparatus is not in a stable state, said control signal is prevented from operating according to a digital stored value and caused to operate only according to a digital rotational error. |
