Dead time in PWM signals for BLDC Motor control

Hello Team,

I working on Speed control Control of BLDC Motor using Hall Sensor. For this I have used the example given in MATLAB for C2000 Controller i.e Six-Step Commutation of BLDC Motor Using Sensor Feedback. "https://in.mathworks.com/help/mcb/gs/six-step-commutation-bldc-motor-using-position-sensor.html".

I am able to run the motor but I'm getting a dead time in PWM signals.

Could anyone help me how to resolve it.

Answer 1

[Joel Van Sickel]

That isn't dead time, it's too large to be dead time. It looks more like the controller stops driving the motor entirely for some reason. You should be able to log signals from the controller for what it is doing and find out why it is turning off.