mat1.m

mos transistor, basic simulation

hold on
vds=0.001:.001:1.8;
for vgs=0:.1:1.5
    for i=1:1800
        if vgs<.4
        id(i)=vds(i).*0;
        end
        if vds(i)<vgs-.4 && vgs>=.4
        id(i)=.774.*((vgs-.4).*vds(i)-vds(i).^2./2).*(1+.1.*vds(i));
        end
        if vds(i)>=vgs-.4 && vgs>=.4
        id(i)=.774./2.*((vgs-.4)^2).*(1+.1.*vds(i));
        end
    end
    plot(vds,id)
    end