PLECS 1.3 Online Help

Mutual Inductor

Purpose

Mutual inductor.

Library

Passive Components

Description

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This component provides two or more coupled inductors. Electrically, it is equivalent with a vectorized Inductor. In contrast to the vectorized Inductor, this component displays the individual inductors in the schematic as separate windings. Winding 1 is marked with a dot.

Parameters and Dialog Box

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Number of windings
The number of ideal inductors represented by the component.
Inductance
The inductance in henries (H). All finite positive and negative values are accepted, including 0.

If the parameter is a scalar or a vector no coupling exists between the windings. In order to model a magnetic coupling between the windings a square matrix must be entered. The size n of the matrix corresponds to the number of windings. Li is the self inductance of the internal inductor and Mi;j the mutual inductance:

2    3    2                      3  2     3
  v1         L1   M1;2         M1;n      ddti1
66 v2 77    66 M2;1   L2          M2;n 77  66 ddti2 77
64  .. 75 =  64   ..     ..   ..    ..  75   64  ..  75
   .          .     .    .    .       d.
  vn        Mn;1  Mn;2          Ln       dtin

Initial current
The initial current in the windings at simulation start, in amperes (A). This parameter may either be a scalar or a vector corresponding to the number of windings. The direction of a positive initial current is indicated by small arrows in the component symbol. The default of the initial current is 0.

Probe Signals

Winding x current
The current flowing through winding x. The direction of a positive current corresponds to the small arrow in the component symbol.