Debugging pcb (sun tracker)

Thread Starter

DaLyinglama

Joined Apr 20, 2021
2
in sun tracking pcb using H-bridge to rotate the direction of motor in forward and reverse condition.now forwarding is working but reverse the direction is not working.. continutiy is in between controller and h bridge.
No signal at pin2 when reversing the motor.
Signal present at pin1 in forward conditon
 

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sghioto

Joined Dec 31, 2017
2,394
See if the diode is shorted. If the diode is shorted it will kill the signal coming from pin 72 of the pic. Even though you said you have continuity from the controller to the H bridge is there a signal coming from pin 72 on the pic ?
 
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