ravitest
Advanced Member level 4
matlab code for mosfet operation
hi, please help me, i wrote a matlab program for mosfet which shown below with result, then how can i use this code for generating of basic current mirror in matlab, please give me suggestions.
kn=1e-3; vt=1.5;
vds=0:0.5:12;
vgs=4:2:8;
m=length(vds);
n=length(vgs);
for i=1:n
for j=1:m
if vgs(i) < vt
cur(i,j)=0;
elseif vds(j) >= (vgs(i) - vt)
cur(i,j)=kn * (vgs(i) - vt)^2;
elseif vds(j) < (vgs(i) - vt)
cur(i,j)= kn*(2*(vgs(i)-vt)*vds(j) - vds(j)^2);
end
end
end
plot(vds,cur(1,
xlabel('Vds, V')
ylabel('Drain Current,A')
title('I-V Characteristics of a MOSFET')
text(6, 0.009, 'Vgs = 4 V')
text(6, 0.023, 'Vgs = 6 V')
text(6, 0.045, 'Vgs = 8 V')
hi, please help me, i wrote a matlab program for mosfet which shown below with result, then how can i use this code for generating of basic current mirror in matlab, please give me suggestions.
kn=1e-3; vt=1.5;
vds=0:0.5:12;
vgs=4:2:8;
m=length(vds);
n=length(vgs);
for i=1:n
for j=1:m
if vgs(i) < vt
cur(i,j)=0;
elseif vds(j) >= (vgs(i) - vt)
cur(i,j)=kn * (vgs(i) - vt)^2;
elseif vds(j) < (vgs(i) - vt)
cur(i,j)= kn*(2*(vgs(i)-vt)*vds(j) - vds(j)^2);
end
end
end
plot(vds,cur(1,
xlabel('Vds, V')
ylabel('Drain Current,A')
title('I-V Characteristics of a MOSFET')
text(6, 0.009, 'Vgs = 4 V')
text(6, 0.023, 'Vgs = 6 V')
text(6, 0.045, 'Vgs = 8 V')