i want to generate a pwm of variable duty cycle

i want to generate a pwm of variable duty cycle like first 200 ms duty cycle should be 35%,for next 250 ms duty cycle should be 50%, for next 500 ms duty cycle should be 80% and for rest of time is 100%.How to acheive this function.Thanks in advance.

Answer 1

[Nisar Ahmed]

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Answer 2

[VBBV]

    A = 1;% normalized amplitude
    T = 0:0.1:2000; % millisec
    Sx = zeros(length(T),1);
    i = 1;
    while i<=length(T)
    if T(i)<200
     Sx(i) = 0.35*A;
    elseif T(i)>=200 & T(i)<=450
        Sx(i) = 0.5*A;
    elseif T(i)>=450 & T(i)<= 950
        Sx(i) = 0.8*A;
    elseif T(i)>=950 & T(i)<=1000
        Sx(i) = 0;
    elseif T(i)<1000+200
        Sx(i) = 0.35*A;
    elseif T(i)>=1000+200 & T(i)<1000+450
        Sx(i) = 0.5*A;
    elseif T(i)>=1000+450 & T(i)<1000+950
        Sx(i) = 0.8*A;
    else
        Sx(i) = 0;
    end
    i = i+1;
       end 
    plot(T,Sx,'linewidth',2)
    axis([0 2000 0 1.5]);
    grid

you can try this, but using Simulink generator would be good option