Electronics > Beginners
Stepper power supply
chipx:
Hi everyone, what happens if I feed a 12V - 0.14A stepper with an 11.1V - 2A power supply?
Arduino is ok but not if I burn the steppers with 11.1V.
Thanks
pwlps:
--- Quote from: chipx on February 01, 2020, 11:11:30 am ---Hi everyone, what happens if I feed a 12V - 0.14A stepper with an 11.1V - 2A power supply?
Arduino is ok but not if I burn the steppers with 11.1V.
Thanks
--- End quote ---
I'm not sure I understand well your problem (don't know if Arduino is ok with 12V) but if the stepper is rated for 12V I don't see how you can burn it with 11.1V.
Edit:
12V - 0.14A means that if you apply a 12V voltage the current will be 0.14A. With 11.1V the current will be roughly 0.13A.
chipx:
Okay. Can you lose steps? Is he working badly? Thank you
pwlps:
--- Quote from: chipx on February 01, 2020, 01:20:32 pm ---Okay. Can you lose steps? Is he working badly? Thank you
--- End quote ---
The torque will decrease proportionally to the voltage decrease, the maximum speed will also decrease slightly, but if you have enough margin (on the torque you need) you won't lose steps. I sometimes used a 12V stepper with 10V, I was just driving it a little slower than the datasheet rating to make sure I don't lose steps.
rstofer:
--- Quote from: chipx on February 01, 2020, 01:20:32 pm ---Okay. Can you lose steps? Is he working badly? Thank you
--- End quote ---
What is the stepper driving?
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