I have been trying to make a H-bride circuit for a high torque motor. I need the motor to turn 5secs CC and 5secs CCW. Every time i tried it doesnt have the output. I am using TIP120 and TIP127 for this circuit. I have attached the circuit and the program codes. Can i use 5v relays instead of the transistor?
Why would you use darlingtons for a high current H-bridge? It makes little sense when MOSFETs are
way superior (much faster, much lower conduction losses, much lower switching losses).
High power H-bridge design is tough, if you want something robust, as all the failure modes are rapid
and destructive at high power, usually cascading and taking out several active devices. If you've not
made an H-bridge before expect to learn through mistakes.
Also, can you turn the vague phrase "high torque motor" into something intelligible, with explicit voltage
and stall current rating? Vague isn't useful, numbers are useful. We don't even know for sure this
is a DC motor from what you've posted so far.