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## Inductors

General Form:
lname n+ n- [value | modname] [options] [ind=expr | poly c0 [c1 ...]]

Options: [m=mult] [ic=val]

Examples:
lshunt 23 51 10u ic=15.7ma

The n+ and n- are the positive and negative element nodes, respectively, and value is the inductance, for a constant value inductor. An inductor model modname can optionally be specified. Presently the inductor model holds only a parallel multiplier default, so an inductance must be specified in addition to the model.

The parameters accepted for the inductor device are:

m=mult
This is the parallel multiplier which is the number of devices effectively in parallel. The given inductance is divided by this value. It overrides any m' multiplier found in the inductor model.

ic=val
The initial condition is the initial (time-zero) value of inductor current (in Amps) that flows from n+, through the inductor, to n-. The initial condition (if any) applies only when the uic option is specified in transient analysis.

ind=expr
The expr is an expression yielding the inductance in henries. This is the partial derivative of flux with respect to branch current, possibly as a function of other circuit variables. The keyword can alse be given as inductance'' or `l'', or may be omitted since this is the default parameter. Note that the expression can depend on the branch current, in which case the device is nonlinear.

poly c0 [c1 ...]
This form allows specification of a polynomial inductance, which will take the form
Inductance = c0 + c1 . i + c2 . i2...
where i is the current flowing through the device from the positive to the negative element nodes. There is no built-in limit to the number of terms.     Next: Inductor Model Up: Passive Element Lines Previous: Capacitor Model   Contents   Index
Stephen R. Whiteley 2019-06-03