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234 3. Reference Manual
ControllingVoltagePrefix
With ControllingVoltagePrefix −> "string", you can specify the prefix string CircuitEquations
prepends to the reference designator of a voltage-controlled source to generate a unique identifier
for the controlling voltage.
For example, with ControllingVoltagePrefix −> "VC$", the controlling voltage of a voltagecontrolled
voltage source VV1 will be named VC$VV1.
Symbol["string" "refdes"] must yield a valid symbol. Therefore, "string" must not
contain characters which have a special meaning in Mathematica.
ConvertImmittances
With the option ConvertImmittances, you can control the way in which CircuitEquations handles
impedances when setting up modified nodal equations. The following values are allowed:
True
False
convert impedances Z to equivalent admittances Z
do not convert impedances to equivalent admittances
Values for the ConvertImmittances option.
For example, with ConvertImmittances −> True, a resistance R1 will appear as an admittance 1/R1
in a system of modified nodal equations. With ConvertImmittances −> False, the resistance will
not be converted to an admittance, and the MNA equations will be augmented by the branch
current I$R1.
The setting of ConvertImmittances has no influence on sparse tableau equations.
An explicit Pattern specification in a netlist entry for an impedance or admittance
overrides the setting of ConvertImmittances for this element.
DefaultSelector
With the option DefaultSelector, you can specify the key used by ExpandSubcircuits to replace
the right-hand sides of generic device model selector specifications in netlists generated with
ReadNetlist (Section 3.10.1). The setting DefaultSelector −> selector causes all generic selectors
to be replaced by the key selector. Generic selector specifications have the form
for example,
Selector −> Selector["device", "type", "instance"]