hello i am sung myung working for amotech co.
I am turning the drive ic.
and i recognize that the difference rpm is occurred with same pwm duty signal on the motor.
When i ratate motor with 20% pwm duty first. motor's rpm is 800. and then i increase pwm duty up to 90%. motor's rpm is increased up to 2800.
and i reduce pwm duty down to 20% again. but motor's rpm is 1400
i want to know the reason which make difference between first rpm and second rpm with same PWM duty(20% duty).
and then I will be appreciated by getting the way to solve this problem.
thank you
