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3.6 Circuit and DAEObject Manipulation 271
Define netlist description
of a simple diode rectifier
circuit.
Set up DAE system.
Return design point stored
in dae.
Return the values of the
parameters R1 and C1.
In[2]:= cir =
Circuit[
Netlist[
{V0, {1, 0}, Symbolic −> V0,
Value −> 2. Sin[10^6 Time]},
{R1, {2, 0}, Symbolic −> R1, Value −> 100.},
{C1, {2, 0}, Symbolic −> C1, Value −> 1.*^−7},
{D1, {1 −> A, 2 −> C},
Model −> "Diode", Selector −> "Spice"}
]
]
Out[2]= Circuit
In[3]:= dae = CircuitEquations[cir,
AnalysisMode −> Transient, ElementValues −> Symbolic]
Out[3]= DAETransient, 4 4
In[4]:= GetDesignPoint[dae]
Out[4]=
V0 2. Sin1000000 t, R1 100., C1 1. 10 7 , AREA$D1 1.,
BV$D1 ∞, GLEAK$D1 0, GLEAKSW$D1 0, GMIN 1. 10 12 ,
IBV$D1 0.001, IS$D1 1. 10 14 , ISW$D1 0, PERIM$D1 0,
RS$D1 0, TEMP 300.15, TNOM 300.15, $k 1.38062 10 23 ,
$q 1.60219 10 19 , CD$D1 0, CJO$D1 0, CJSW$D1 0
In[5]:= GetDesignPoint[dae, {R1, C1}]
Out[5]= 100., 1. 10 7
3.6.13 ApplyDesignPoint
ApplyDesignPoint[dae, stringpattern]
replaces all parameters of dae matching stringpattern with
their numerical values
ApplyDesignPoint[dae, {stringpattern
, stringpattern
, † † † }]
replaces all parameters matching a list of string patterns
with their numerical values
ApplyDesignPoint[dae]
Command structure of ApplyDesignPoint.
replaces all parameters of the design point with their
numerical values
Given a DAEObject, ApplyDesignPoint returns a new DAEObject where all parameters in the
equation system which match a string pattern stringpattern are replaced with their numerical values
stored in the DesignPoint option of dae. If a list of string patterns is given, all parameters which
match at least one of the patterns are replaced. By default, all replaced parameters are removed from