| 摘要 |
PURPOSE:To make it possible to perform a stable control with a conducting pulse suitable for the system, by taking out preset data on conducting pulse widths to a motor from the memory. CONSTITUTION:The encoder pulse output of a DC motor is inputted from a signal line 1, with which a monostable multivibrator 3 is started. With the pulse of the monostable multivibrator 3 the initial values of 4-bit binary counters 4 and 5 are loaded and the count values of counters 4 and 5 are set at an 8-bit latch 6. The 8-bit data on motor conducting time appears on the data bus of a ROM 7. A monostable multivibrator 8 starts a monostable multivibrator 9 and the conduction or non-conduction of a motor drive circuit can be controlled by means of a negative logic on a signal line 10. |
