Matlab code for PWM generation

%!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!%
%                   Script file for PWM generation                  %
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clc;
clear;

fs = 1000; % Frequency of samples
fc = 25; % Frequency of error or message signal

t = 0:1/fs:10; % Array of time

Saw = sawtooth((fc/2)*2*pi*t);

Message = Saw/2+ range(Saw)./4;

figure(1)
plot(t,Message);

position_signal = sind(t*360); % Position signal in degrees

s11 = one

s(size(position_signal));
s11 = sign(diff(position_signal));% Comparision of signals

PWM_signal = zeros(size(position_signal)); %PWM Signal

for n = 1:length(position_signal)
   
    if Message(n)>abs(position_signal(n))&& s11(n)>0
        PWM_signal(n)=1;
    elseif Message(n)>abs(position_signal(n))&&s11(n)<0
        PWM_signal(n) = =-1;
    end
end

figure(2)
plot(t,position_signal,'g-')
hold on
plot(t,PWM_signal,'k--')
title('\fontsize{20}\color{black}\bfPWM pulse generation by MATLAB coding')
axis off