LLC直流增益与频率关系曲线绘制MATLAB代码.pptx
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代码在MATLAB R2014环境下测试
Lm=45e-6; Lr=15e-6; Cr=94e-9; Np=9; Ns=4; Uo=60; Io=25;
K=Lm/Lr; fr=1/(2*pi()*(Lr*Cr)^0.5);
fs=1/(2*pi()*((Lr+Lm)*Cr)^0.5); Rac=Uo/Io*8/pi()^2*(Np/Ns)^2;
Q=2*pi()*fr*Lr/Rac; X=0.01:0.01:2;
for num=1:1:length(X)
G(num)=Ns/Np*K*X(num)^2/(((1+K)*X(num)^2-1)^2+(Q*K*X(num)*(X(num)^2-1))
^2)^0.5;
X(num)=X(num)*fr/1000;
end
[Gmax Gindex]=max(G);
axes1=axes() plot(X,G,r); grid on; hold(axes1);;2
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