Too many PWM's shorting out power?

[el_pablo]

We are having the same problem.

When we try to control more than 2 motors with the PWMs, the system starts to have problem.

Scenario 1
With the Axis camera, when running the 2 step motor, one of them starts to skip. Adding a third motor, both of step motors jitters.

Scenario 2
Using 2 jags and 1 victor, one jag skips every few seconds.

So what could be the problem? Power?

Thanks for helping