how to generate PWM after a sine in simulink?

Question

I need to generate a PWM signal with duty cycle after a sine. How I can do this in simulink and after this to simulate on a microcontroller F28027 PICCOLO ?

ok I put that block, but after that, what I need to do to have a PWM with duty cycle after a sine? — user, Apr 10 '16 at 06:29

score 0 · Answer 1 · answered Apr 19 '16 at 18:09

I am unsure about your requirement.I think the below codes might help you as first step. I think this must generate PWM signal.

percent=input('Enter the percentage:');
TimePeriod=input('Enter the time period:');
Cycles=input('Enter the number of cycles:');

x=0:0.01:Cycles*TimePeriod;
t=(percent/100)*TimePeriod;

for n=0:Cycles
    y(((n*TimePeriod)< x) & (x<(n*TimePeriod+t))) = 1;
    y(((n*TimePeriod+t)< x)& (x<((n+1)*TimePeriod))) = 0;

    plot(y,'b','LineWidth',2)
    grid on
end

how to generate PWM after a sine in simulink?

1 Answers1