how to plot multiple curves in same figure

2 vues (au cours des 30 derniers jours)
Nudrat Sufiyan
Nudrat Sufiyan le 17 Août 2022
Commenté : Nudrat Sufiyan le 17 Août 2022
I want to plot Id-vds curve for different length of Aln as it is mentioned as 'daln' in code. I have plotted for 1nm -daln, and need graph for different daln =1.2,3,4,5 nm .
This is the code for daln = 1nm
clear all;
E0=8.85e-12;
Ealgan=10.31;
talgan=23e-9;
calgan=(Ealgan/talgan);
dit=1.2e12;
q=1.6e-19;
gamma=(1/(1+dit*q/calgan));
nd=1.5e16;
daln=1e-9;
fim=(5.1*1.6e-19);
xaln=(1.9*1.6e-19);
fi0=(3.4*1.6e-19);
fis0=(gamma*(fim-xaln)-(gamma*q*nd*daln/calgan));
sigmapol=3.38e17;
sigmaaln=3.38e17;
Ealn=(10.78*E0);
detaEc=(0.343*1.6e-19);
Vt=fis0-detaEc-(sigmapol*q*daln/Ealn);
cq=3.436e15;
ceq=(calgan*cq/calgan+cq);
mu=0.09;
g=33.3;
Vds=0:0.5:6;
vgs=input('ENTER THE vgs in volts');
m=length(Vds);
for i=1:m
if vgs < Vt
current(1,i)=0;
current1(1,i)=0;
elseif Vds(i) >= (vgs - Vt)
current(1,i)=((mu*ceq/2)*(g)*(vgs-Vt)^2); %Simplified equation by approximation
elseif Vds(i) < (vgs - Vt)
current(1,i)=(mu*ceq/2)*(g)*(2*(vgs-Vt)*Vds(i)-Vds(i)^2);%Added DIBL
end
end
plot(Vds,current(1,:),'b')
xlabel('Vds, V')
ylabel('Drain Current,A')
title('I-V Characteristics of a hemt')

Réponses (1)

Jan
Jan le 17 Août 2022
Create a loop:
axes('NextPlot', 'on'); % As: hold on
...
for daln = 1:5
...
end
  3 commentaires
Jan
Jan le 17 Août 2022
Try it. You cannot damage Matlab or the computer.
Set the axes() command e.g. on top of the code (after omitting the vrute clearing header "clear all", which is touzght in beginner lessons, but rarely useful in real programs).
Then replace the line
daln = 1;
by
for daln = 1:5
and insert
end
where you want to stop the loop.
Nudrat Sufiyan
Nudrat Sufiyan le 17 Août 2022
ok, Thanks, i'll try

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