| 摘要 |
PURPOSE:To control a motor shaft as desired by correcting a value obtained by a feed forward compensation by a correction value obtained by calculating with a current command value and a motor driving current when a PWM width is calculated. CONSTITUTION:When a PWM width Pwr is decided, a correction value PWM2 obtained by compensating a current deviation Ie between a current command value Ir and a drive current Ic by a feed forward compensator 104 is added to a value PWM1 converted from the value Ir and the rotating speed Vd of a motor 108 by the compensator 104 to be corrected to decide the PWM width Pwr. Thus, a desired driving current Ic can be fed to the motor 108. |
