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simulink model for buck converter

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abbas_0612000

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i m interested to model buck converter by simulink.
i want to use digital controller(ADC, compensator,DPWM/DAC);

I WOULD BE THANKFUL IF SOMEONE PROVIDES MATERIAL REGARDING THAT;
MAIN PROBLEM WITH ME TO MODEL DPWM/DAC to get duty cycle to drive the gate.

thanks in advance.
 

Try modeling a triangle wave generator connected to a comparator with a reference voltage. I am pretty sure this can be done with simulink seeing as a comparator is simply an if(a>b) c=1 else c=0 and a triangle is just a ramp. By adjusting the reference "voltage" you can change the duty cycle.
 

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