Download - Wolfram Research

254 3. Reference Manual
Define netlist description
of a simple diode rectifier
circuit.
Set up transient equation
system.
Show equation system.
Transform dynamic
equations into a static
system.
Show equation system.
In[2]:= rectifier = 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",
GMIN −> 0, AREA −> 1}
]
]
Out[2]= Circuit
In[3]:= tran = CircuitEquations[rectifier,
ElementValues −> Symbolic,
AnalysisMode −> Transient,
Value −> {"*" −> {TEMP, TNOM, $q, $k, AREA, GMIN}}]
Out[3]= DAETransient, 4 4
In[4]:= tran // DisplayForm
Out[4]//DisplayForm=
I$AC$D1t I$V0t ⩵⩵ 0, I$AC$D1t
V$2t C1 V$2 ′ t ⩵⩵ 0,
R1
V$1t ⩵⩵ V0, I$AC$D1t ⩵⩵ 1. 1 38.6635 V$1tV$2t IS$D1,
V$1t, V$2t, I$V0t, I$AC$D1t,
DesignPoint V0 2. Sin1000000 t, R1 100.,
C1 1. 10 7 , BV$D1 ∞, GLEAK$D1 0, GLEAKSW$D1 0,
IBV$D1 0.001, IS$D1 1. 10 14 , ISW$D1 0, PERIM$D1 0,
RS$D1 0, CD$D1 0, CJO$D1 0, CJSW$D1 0
In[5]:= dc = DCEquations[tran]
Out[5]= DAEDC, 4 4
In[6]:= dc // DisplayForm
Out[6]//DisplayForm=
I$AC$D1 I$V0 ⩵⩵ 0, I$AC$D1
V$2 ⩵⩵ 0,
R1
V$1 ⩵⩵ V0, I$AC$D1 ⩵⩵ 1. 1 38.6635 V$1V$2 IS$D1,
V$1, V$2, I$V0, I$AC$D1, DesignPoint
V0 0, R1 100., C1 1. 10 7 , BV$D1 ∞, GLEAK$D1 0,
GLEAKSW$D1 0, IBV$D1 0.001, IS$D1 1. 10 14 , ISW$D1 0,
PERIM$D1 0, RS$D1 0, CD$D1 0, CJO$D1 0, CJSW$D1 0