I have to create a square wave signal on simulink where any logical value, high or low, must last for a given time. Logical values and times are sent by other simulink blocks.

I need a simulink block with two input end one output.

The first input is a vector of logic value ( e.g. V = ( 1 0 1)).

The second input is a vector of times ( e.g. T = ( t1 t2 t3)).

The vector V and T are made in other simulink blocks and each elements of V and T change continuously in the time.

The vectors are the same size.

The output must be a square wave where to each element of V correspond the same element of T. Look at the picture to understand better.

The square wave output must be a signal that I need to drive a switch.

Thanks.

Answer 1

[Davide Masiello]

Maybe something like this?

clear,clc

T = [3,6,2,1,4,3,8];
V = [1,0,1,0,1,0,1];

% Block
t = cumsum(T);
t = [0,repelem(t(1:end-1),2),t(end)];
v = repelem(V,2);
plot(t,v)
axis([-inf +inf -0.5 +1.5])

[pier paolo bembich]

Thanks for the reply.

The output waveform is correct.

But I need the square wave to be the output of a simulink block.

The square wave output must be a signal that I need to drive a switch!!

Can you help me?

Thanks

[Davide Masiello]

I don't know Simulink well enough I am afraid.

[pier paolo bembich]

thanks anyway