Plot transfer function with input
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Hello there.
I have a transfer function of OP AMP:
And how do I plot step(g) with input Vi(t) = 3V ?I have no idea how to
Thanks.
回答（1 个）
Hi @Kaizi
Here are two simplest ways to do it:
Method 1:
Vi = 3; % input
G = tf([1.8 2.4 0], [0.72 1.8 1])
step(Vi*G)
Method 2:
t = linspace(0, 7, 701); % sim time
u = Vi*ones(1, length(t)); % input
lsim(G, u, t)
4 个评论
Kaizi
2023-4-5
Sam Chak
2023-4-5
You are welcome, @Kaizi. If you find the solution helpful, please consider accepting ✔ and voting 👍 on the answer. Thanks a bunch! 🙏
Regarding the Simulink, use the Step Block and (double-click) set the FInal value to the desired value. In your case, set 3.
Kaizi
2023-4-5
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