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3.7 Numerical Analyses 301
D1
1 2
V0 C1 R1 Vout
Load Analog Insydes.
Define netlist description
of a simple diode rectifier
circuit.
Set up system of symbolic
time-domain equations.
Display equations.
Perform numerical DC
analysis with NDAESolve.
In[1]:= 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]:= rectifiereqs = CircuitEquations[rectifier,
AnalysisMode −> Transient, ElementValues −> Symbolic]
Out[3]= DAETransient, 4 4
In[4]:= DisplayForm[rectifiereqs]
Out[4]//DisplayForm=
I$AC$D1t I$V0t ⩵⩵ 0, I$AC$D1t
V$2t C1 V$2 ′ t ⩵⩵ 0,
R1
V$1t ⩵⩵ V0, I$AC$D1t ⩵⩵ AREA$D1
1
1. $q V$1tV$2t
TEMP
$k
IS$D1
TEMP 3.
TNOM
TEMP
1.11 1.
TNOM
$q
TEMP $k
GMIN V$1t V$2t,
V$1t, V$2t, I$V0t, I$AC$D1t, DesignPoint
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]:= NDAESolve[rectifiereqs, {t, 0.}]
Out[5]=
V$2 0., V$1 0., I$V0 0., I$AC$D1 0.