Relay block to generate signal PWM

my probleme : i have sinsoidal signal the maximum valeur is 1 V and the minimum is 0.7V .

i can't use Relay block to generate signal PWM

Answer 1

[Fangjun Jiang]

You mean you have y=a*sin(t), 0.7<a<1? To derive a PWM signal from a sinusoidal wave based on its magnitude, you just need to compare it with a constant. In your case, try to use a Relational Operator block to compare the sinusoidal wave with constant 0.8 and see what is the output of the Relational Operator block.

Answer 2

[Paulo Silva]

Why do you need the relay block to generate the PWM?

This should suffice:

[sine wav] -----> [compare to constante] ------>(PWM output)