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% Code to plot simulation results from elec_mosfet

%% Plot Description:

%

% The plot below shows drain current vs. drain-source voltage for a range

% of gate voltages.

%

% Copyright 2008-2016 The MathWorks, Inc.

 

ModelName = get_param(gcb,'Parent');

ParameterBlk = [ModelName '/Parameters'];

Vg_vec = str2num(get_param(ParameterBlk,'Vg_vec'));

Vds_min = str2num(get_param(ParameterBlk,'Vds_min'));

Vds_max = str2num(get_param(ParameterBlk,'Vds_max'));

if Vds_max <= Vds_min

    pm_error('physmod:elec:library:InconsistentMaskParameters','Maximum drain-source voltage','Minimum drain-source voltage')

end

t_sim = 1;

clear legend_infoId_matVds_vec

for i=1:length(Vg_vec)

    Vg = Vg_vec(i);

    legend_info{i} = ['Vg = ',num2str(Vg)]; %#ok<SAGROW>

    sim(ModelName,t_sim)

    Id_mat(:,i) = Id.signals.values; %#ok<SAGROW>

    Vds_vec = Vds.signals.values;

end

 

% Reuse figure if it exists, else create new figure

if ~exist('h1_elec_mosfet', 'var') || ...

        ~isgraphics(h1_elec_mosfet, 'figure')

    h1_elec_mosfet = figure('Name', 'elec_mosfet');

end

figure(h1_elec_mosfet)

clf(h1_elec_mosfet)

 

plot(Vds_vec,Id_mat','LineWidth',1)

axis([Vds_min Vds_max max(-30,min(min(Id_mat))) min(30,max(max(Id_mat)))])

xlabel('Drain-Source Voltage (V)')

ylabel('Drain Current (A)')

legend(legend_info);

title('MOSFET Curves: Ic vs. Vds for Varying Gate Voltage')

grid on

% Reset default values

Vg = 5;

Vds_min = 0;

Vds_max = 4;

 

 

 

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