Plotting periodic sawtooth wave with 25%, 50% and 75% duty cycle

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Ginnie Lim
Ginnie Lim 2022-3-10
评论： Ginnie Lim 2022-3-15
How do I generate a periodic sawtooth with varying duty cycle (e.g 25%, 50%, 75%) using x = sawtooth(2*pi*t)?
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Ginnie Lim
Ginnie Lim 2022-3-10
Hi sir, thank you for your response! I would like to generate a wave like the one shown in the photo attached.

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Scott MacKenzie
Scott MacKenzie 2022-3-10
编辑：Scott MacKenzie 2022-3-10
Ran in:
I'm sure there are other (perhaps better) ways to do this, but I think the following code achieves what you are after:
% create sawtooth waveform (from sawtooth documentation)
T = 5*(1/50);
fs = 1000;
t = 0:1/fs:T-1/fs;
y = sawtooth(2*pi*50*t);
tiledlayout('flow');
% duty cycle = 100%
nexttile;
plot(t,y);
title('100% Duty Cycle');
spread = abs(max(y) - min(y));
% duty cycle = 50%
nexttile;
floor = max(y) - 0.50 * spread;
y1 = y;
y1(y1<floor) = floor;
plot(t,y1);
title('50% Duty Cycle');
% duty cycle = 25%
nexttile;
floor = max(y) - 0.25 * spread;
y2 = y;
y2(y2<floor) = floor;
plot(t,y2);
title('25% Duty Cycle');
% duty cycle = 75%
nexttile;
floor = max(y) - 0.75 * spread;
y3 = y;
y3(y3<floor) = floor;
plot(t,y3);
title('75% Duty Cycle');

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