boost_pcm_line_reg.m

基于平均法的断续模式下buck,boost,buck_boost型DC/DC功率级建模步骤

function boost_PCM_line_reg( Vgmax,Vgmin,V,Io,rg,rL,rS,rC,rD,VD,R1,R2,RS,L,Ts,Ma,Ae )
Vgmax=input('please give the input voltage Vgmax=');
Vgmin=input('please give the input voltage Vgmin=');
V=input('please give the output voltage V=');
Io=input('please give the output current Io=');
rg=input('please give the resistance of the input voltage source rg=');
rL=input('please give the resistance of the inductor rL=');
rS=input('please give the resistance of the switch rS=');
rC=input('please give the resistance of the capacitor rC=');
rD=input('please give the resistance of the diode rD=');
VD=input('please give the voltage of the diode VD=');
R1=input('please give the lower sampling resistance R1=');
R2=input('please give the upper sampling resistance R2=');
RS=input('please give the sampling resistance of the inductor current RS=');
L=input('please give the inductance L(uH)=');
Ts=input('please give the switch period Ts(us)=');
L=L*10^(-6);
Ts=Ts*10^(-6);
Ma=input('please give the slope compensation coefficient Ma=');
Ae=input('please give the DC gain of the error amplifier Ae=');
Rb=R1+R2;
D21=(Vgmax+Io*rS-Io*rD+((Vgmax+Io*rS-Io*rD)^2-4*(V+VD)*Io*(rS+rL+rg))^0.5)/(2*(V+VD));
D22=(Vgmin+Io*rS-Io*rD+((Vgmin+Io*rS-Io*rD)^2-4*(V+VD)*Io*(rS+rL+rg))^0.5)/(2*(V+VD));
D2max=max(D21,D22);
D2min=min(D21,D22);
Dmax=1-D2min;
Dmin=1-D2max;
Fb=R1/Rb;
deltaV1=((Io/D2min-Io/D2max)*RS+Ma*(Dmax-Dmin)*Ts*RS+(Vgmin-(Io/D2min)*(rg+rS+rL))*(Dmax-Dmin)*Ts*RS/(2*L))/(Ae*Fb);
deltaV2=((Io/D2max-Io/D2min)*RS+Ma*(Dmin-Dmax)*Ts*RS+(Vgmax-(Io/D2max)*(rg+rS+rL))*(Dmin-Dmax)*Ts*RS/(2*L))/(Ae*Fb);
deltaV=max(deltaV1,deltaV2);
fprintf('deltaV/V=%6.2f%%\n',100*deltaV/V);