simulation

Why the simulation time will not match with actual time; eg:pulse generator block time period is in Sec,the output which is not match the real time;

[Kaustubha Govind]

It's not clear what you're asking. Could you explain in a little more detail, or post an example/image?

[Murali Mohan]

I mean,simulation runs faster than real time.what are steps can be taken for synchronoising with real time.Is there any disadvantages of model if i do synchronoising this?

[Arnaud Miege]

The real question is why do you want your simulation to run in (pseudo) real-time?

Answer 1

[Arnaud Miege]

Are you asking why Simulink runs faster than real-time? If so, you may want to look at the following File Exchange entries:

• Real-Time Pacer for Simulink
• Real-Time Blockset 7.1 for Simulink
• RTsync Blockset
• RTsync Blockset 64-bit
• Simulink® Real Time Execution
• Simulink® Execution Control

HTH,

Arnaud

Answer 2

[swapna rani]

clear all;

hfin=1;

tsi=20

W=2*hfin*tsi;

Vth=1;

Leff=180;

DIBL=1.127*(W\Leff);

vth=Vth-DIBL;

lambda=25*10^-5;

u=1360;

ld=0.1;

Ec=1.5*106;

Cox=60;

Vds=0:0.5:10;

vgs=input('ENTER THE Vgs in volts');

m=length(Vds);

for i=1:m

if vgs < Vth

current(1,i)=0;

current1(1,i)=0;

elseif Vds(i) >= (vgs - Vth)

current(1,i)=0.5* DIBL * ((vgs - Vth)^2)*(1+lambda*Vds(i));%Added DIBL

elseif Vds(i) < (vgs - Vth)

current(1,i)= DIBL*((vgs-Vth)*Vds(i) - 0.5*(Vds(i)^2))*(1+lambda*Vds(i)); %Simplified equation by approximation

end

end

plot(Vds,current(1,:),'b')

xlabel('Vds, V')

ylabel('Drain Current,A')

title('I-V Characteristics of a MOSFET')

end