Asparagus
Guest
One thing is not clear to me about the external power of motors or motor controllers. I would like to check 5 step-by-step engines (buy 35pm48m03-sg120 pm stepper motor 4 phase 0.0625 deg 0.4a 98 ncm with 120:1 spur gearbox φ35x35.2mm online - oyostepper.com), each using a driver (uln2003) of shaves. the plan is to use a 5 v power supply and connect the drivers in parallel to maintain a constant voltage of 5 v. however, while searching for a suitable power supply for converters, I ran into information that a common error is not to connect the earth. the converters to shaves. I really don't understand. to what extent is this necessary? purely logically, it should work without a common ground, because it is two separate circuits. . .
Shouldn't I be happy if the shaves don't meet any possible peak of tension from the power supply? :
look with anxiety clear answers that remove this mystery!
cordial greetings!
Shouldn't I be happy if the shaves don't meet any possible peak of tension from the power supply? :
look with anxiety clear answers that remove this mystery!
cordial greetings!