(L) Inductor Statement

Inductors in PLECS Spice support initial current conditions, temperature dependence, and parasitic series/parallel resistances.

Linear Inductor

Recommended

Lname pos neg inductance <IC=ic> <TEMP=temp> <M=m>

Lname pos neg modelName <inductance> <IC=ic> <TEMP=temp> <M=m>
.MODEL modelName L <NAME=value ...>

Legacy

Lname pos neg <inductance> modelName <IC=ic> <TEMP=temp> <M=m>
.MODEL modelName L <NAME=value ...>

• The device type L must be specified in the model statement.

• The inductance can also be set as the model parameter IND. If it’s defined in both the model and the instance, the instance value is used.

• You can customize this model by providing a list of model parameter (name-value format) at the end of the .MODEL statement.

Instance Parameters

Parameter	Description	Default Value
IC	Initial current through the inductor	none
TEMP	Device temperature	\(27\,^\circ\text{C}\)
M	Number of parallel devices	\(1\)

Model Parameters

Parameter	Description	Default Value
T_ABS	Device temperature	\(27\,^\circ\text{C}\)
IND	Inductance	\(0\,\text{H}\)
TC1	Temperature coefficient for IND (first order correction)	\(0\,^\circ\text{C}^{-1}\)
TC2	Temperature coefficient for IND (second order correction)	\(0\,^\circ\text{C}^{-2}\)

• The instance parameter TEMP overwrites the model parameter T_ABS.

Linear Inductor with Parasitic Elements

PLECS Spice supports a model of a linear inductor with equivalent series resistance (RSER) and an additional resistance (RPAR) connected in parallel with the series combination of the ideal inductor and the series resistor.

Recommended

Lname pos neg inductance <M=m> <RSER=rser> <RPAR=rpar>

Legacy

Lname pos neg modelName <inductance> <TEMP=temp> <M=m> <RSER=rser> <RPAR=rpar>
.MODEL modelName L <NAME=value ...>

We support all the instance and model parameters defined above with the exception of IC.

Instance Parameters

Parameter	Description	Default Value
M	Number of parallel devices	\(1\)
RSER	Series resistance	\(0\,\Omega\)
RPAR	Parallel resistance	\(+\infty\,\Omega\)

Note

• Initial conditions are not supported for linear inductors with parasitic elements.

• You may not couple inductors with parasitic contributions using the mutual inductor coupling statement (K).

Examples

L1 mid out 5u