| 摘要 |
PURPOSE:To realize more precise control of a motor by a method wherein the sensitivity of the variation of an input voltage is lowered in an instruction voltage range near zero volt. CONSTITUTION:The input voltage 1aA of an instruction voltage 1a is inputted to a motor input control circuit 2 to control a drive voltage 4A which is applied to a motor 5. A predetermined threshold value is given to the instruction voltage 1a and the sensitivity of the instruction voltage 1a is lowered in a first instruction voltage range between zero volt and the threshold voltage and the sensitivity of the instruction voltage is made to be higher than the sensitivity in the first range in a second instruction voltage range exceeding the threshold voltage. |
