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172 2. Tutorial
In[8]:= mnaFull = CircuitEquations[netlist,
AnalysisMode −> DC, ElementValues −> Symbolic,
Value −> {"*" −> {TEMP, TNOM, $q, $k}}]
Out[8]= DAEDC, 27 27
In[9]:= GetVariables[mnaFull]
Out[9]=
V$1, V$3, V$4, V$5, V$OUT, I$BS$Q1, I$CS$Q1,
I$ES$Q1, ib$Q1, ic$Q1, I$BS$Q2, I$CS$Q2, I$ES$Q2,
ib$Q2, ic$Q2, I$BS$Q3, I$CS$Q3, I$ES$Q3, ib$Q3, ic$Q3,
I$BS$Q4, I$CS$Q4, I$ES$Q4, ib$Q4, ic$Q4, I$VLOAD, I$VDC
In[10]:= GetParameters[mnaFull]
Out[10]=
AREA$Q1, AREA$Q2, AREA$Q3, AREA$Q4, BF$Q1,
BF$Q2, BF$Q3, BF$Q4, BR$Q1, BR$Q2, BR$Q3, BR$Q4,
GMIN, IB, II, IS$Q1, IS$Q2, IS$Q3, IS$Q4, VDC, VLOAD
Numerical Reference Calculation
Using NDAESolve (Section 3.7.5) we now perform the same numerical simulation as in PSpice,
transform the result again into a two-dimensional interpolating function, and plot it in a threedimensional
plot.
In[11]:= data = NDAESolve[mnaFull,
{II, 0.0, 0.001}, {VLOAD, 0., 3.5, 0.5}];
In[12]:= data2d = ConvertDataTo2D[data];
In[13]:= ivload[VLOAD_, II_] = I$VLOAD[VLOAD, II] /. data2d
Out[13]=
InterpolatingFunction0., 3.5, 0., 0.001, VLOAD, II