Hi,
The following waveform is measured, yellow is PWM, green is current; we use micro-step drive, the peak current is 160mA,
So how do I calculate the current error output by DRV8889? Is there any formula you can provide me with?
The test conditions are as below
1. The same motor
2. Stable VM
3. Stable and continuous PWM signal (the duty cycle of PWM is the same)
RnD would like to know the error range (dynamic error) of the peak current under the above conditions
Thanks & best regards,
