Using Levenberg-Marquardt algorithm in the optimization tool box
1 view (last 30 days)
Show older comments
t = 25; % temperature (C)
T = t + 273; % temperature (K)
i_ph = 3.113; % phase current [A]
e_g = 1.12; % band gap [eV]
c_01 = 170.80; % co-efficient of saturation current [AK ^ (- 3)]
m_1 = 1.00; % diode factor
e = 1.6 * 10 ^ - (19); % electronvolt [j]
k = 1.38 * 10 ^ - (23); % Boltzmann constant [JK ^ (- 1)]
U = (0: 0.001: 0.6); % voltage [V]
Ut = (k * T) / e;
Is = c_01 * T ^ (3) * exp (- ((e_g * e) / (k * T)));
I = i_ph-Is. * (Exp (U ./ (m_1 * Ut)) - 1);
plot (U, I, 'linewidth' , 2.5);
axis ([0,0,6,0,3.5]);
xlabel ( 'voltage U' );
ylabel ( 'current A' );
grid on ;
% how can i use the optimization tool (Levenberg-Marquardt algorithm) to find c_01, using a guess value of c_01 = 870.80
% I have plotted both real and guessed value of c_01
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/286934/image.jpeg)
0 Comments
Answers (0)
See Also
Categories
Find more on Get Started with Optimization Toolbox in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!