can a cheap (noisy?) power supply confuse electronics??

[dazzlepecs]

I am trying to document why i gave up using a certain motor driver for another which worked fine


Is it possible that a cheap DC power supply can cause a lot of noise and unwanted/confused operation from logic control its supplying?

 

[Mikebits]

I am trying to document why i gave up using a certain motor driver for another which worked fine


Is it possible that a cheap DC power supply can cause a lot of noise and unwanted/confused operation from logic control its supplying?

Yes... Especially if logic is not designed with good bypass and filtering. Why would you use a crappy power source?

 

[dazzlepecs]

Yes... Especially if logic is not designed with good bypass and filtering. Why would you use a crappy power source?

because im a tard



man i wasted ages on that driver LOL my tutor thinks im a halfwit who cant even figure out a stepper motor hahahaha

 

[Hero999]

Of course it can do.

Use a decent power supply, the LM7805 is best for logic.