3.12  I: Independent Current Source

3.12.1  Syntax

Ixxxxxxx n+ n– value
Ixxxxxxx n+ n– expression
.ISOurce label n+ n– expression

3.12.2  Purpose

Independent current source.

3.12.3  Comments

N+ and n– are the positive and negative element nodes, respectively. Positive current flow is from the positive node, through the source, to the negative node. Value is the current in Amperes.

All of the SPICE time dependent functions (pulse, sin, exp, pwl, and sffm are supported. An additional function generator emulates a laboratory type function generator, for a more convenient signal input to the circuit.