Hi Team,
My customer is evaluating "DRV8811+ stepping motor(MINEBEA)" and saw the waveform attatched.
CH3:motor current
CH4:VREF
CH4:VREF
The motor current seems to have distortion(red part).
Is there any concern about this wavefom?
I'd also like to know why this occurs.
The test condition is the following.
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- step frequency: 8kHz
- microstep mode: eighth-step
- full scale chopping current: 0.8A
- decay mode: mixed decay mode
- step frequency: 8kHz
- microstep mode: eighth-step
- full scale chopping current: 0.8A
- decay mode: mixed decay mode
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It is ODM project for my customer, so unfortunately he can't provide the schematic.
Your advice would be appreciated.
Best Regads,
Yaita / Japan disty