How to add a sine wave with a frequency of 50hz and a magnitude of 20 in Simulink

How to input magnitude value in sine wave block

Answer 1

[Sam Chak]

Hi @Pranav

Enter the values for the Amplitude and Frequency in the Sine Wave block. In MATLAB, it looks like this:

t    = 0:0.0001:0.1;
freq = 50;      % Frequency
amp  = 20;      % Amplitude
x    = amp*sin(2*pi*freq*t);
plot(t, x), grid on, ylim([-40 40]), xlabel('t')

[Pranav]

I am not getting this wave form when i enter the frequency and amplitude value in the sine wave block in simulink.

[Sam Chak]

@Pranav, Can you show an image of what you entered in the Sine Wave block?

I remember that the block shows this formula. Please verify.

Amp*sin(2*pi*Freq*t)

[Pranav]

O(t) = Amp*Sin(Freq*t+Phase) + Bias

[Sam Chak]

I see. No wonder...

The desired frequency of the wave is 50 Hz.

However, in the "Freq" field where the unit is rad/sec, which is technically called Angular Frequency, so you should really enter:

2*pi*50

Try again.

[Pranav]

You are right. It works!!!

Thank you.

[Sam Chak]

You are welcome, @Pranav. I'm glad it works. If you find the brief solution is helpful, please consider accepting ✔ and voting 👍 the Answer. Thanks!

Answer 2

[Pranav]

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