I’m trying to build a driver for 4 DC motors, and experiencing lots of difficulties.
I’ve built the circuit in this picture:
it works perfectly fine when it is only for 1 dc motor, but 4 in parallel just won’t work:
- when i input PWM value from 0 to 255 i get this “tick” (what the hell is that?), and the motors won’t work.
- it works only when all 4 PWM’s get 255 - maximum duty cycle.
I’m using IRLML2502 Mosfets, but i don’t believe that the problem is in the components because everything works fine with only 1 dc motor.
I really don’t want to buy a driver, part of this project is building all on my own.
but in the meantime the only thing this driver drives is me crazy.
I would be so happy to hear some suggestions.