| 摘要 |
PURPOSE:To execute speed instruction successively and smoothly and to decrease high frequency components in the current of a power amplifier, by mounting a memory or a hardware circuit wherein capacity acceleration is recordable, on a speed control circuit for an access moving part. CONSTITUTION:A speed converter 2 receives the remaining number 13 of cylinders to generate a stepwise speed instruction signal 16 in the form of a position function. An acceleration converter 3, on the other hand, receives the remaining number 13 of cylinders to generate an estimated acceleration signal 14 during speed control in the form of a position function. A smoother circuit 4 receives this estimated acceleration signal to integrate every cylinder pulse 19 repeatedly, generating speed variation between cylinder pulses, i.e. smoother signal 15. The stepwise speed instruction signal 16 is synthesized by a speed instruction synthesizer 17 together with the smoother signal 15 and amplified by a speed instruction amplifier 5 to obtain a speed instruction signal 18 for controlling the access moving part. |
