本帖最后由 Nivans 于 2016-9-7 18:00 编辑
请问相移为什么不是从零度开始往负的方向变化呢？代码如下：
- clc
- clear
- L = 10e-3;
- C = 100E-6;
- Vd = 10;
- Vo = 20;
- Fs = 1000;
- Ro = 20;
- Vref = 5;
- D = 1 - (Vd / Vo);
- Vp = Vref / D;
- Vap = -Vo;
- Ic = -(1-D)*Vo /Ro;
- num = [L*Ic Vap*(D - 1)];
- den = [L * C /power((1-D),2) L/(Ro * power((1-D),2)) 1];
- k = 1 / (Vp * power((1-D),2));
- sys1 = k * tf(num,den);
- bode(sys1)
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