The gyrator-capacitor model

is a lumped-element model

Lumped element model

The lumped element model simplifies the description of the behaviour of spatially distributed physical systems into a topology consisting of discrete entities that approximate the behaviour of the distributed system under certain assumptions...

 for magnetic fields, similar to magnetic circuit

Magnetic circuit

A magnetic circuit is made up of one or more closed loop paths containing a magnetic flux. The flux is usually generated by permanent magnets or electromagnets and confined to the path by magnetic cores consisting of ferromagnetic materials like iron, although there may be air gaps or other...

s, but based on using elements analogous to capacitors (see magnetic capacitance

Magnetic capacitance

Magnetic capacitance is a magnetic "reactance" which prevents magnetic "current" in oscillating magnetic circuits from rising...

) rather than elements analogous to resistors (see magnetic reluctance

Magnetic reluctance

Magnetic reluctance, or magnetic resistance, is a concept used in the analysis of magnetic circuits. It is analogous to resistance in an electrical circuit, but rather than dissipating magnetic energy it stores magnetic energy...

) to represent the magnetic flux path. Windings are represented as gyrator

Gyrator

A gyrator is a passive, linear, lossless, two-port electrical network element proposed in 1948 by Tellegen as a hypothetical fifth linear element after the resistor, capacitor, inductor and ideal transformer. Unlike the four conventional elements, the gyrator is non-reciprocal...

s, interfacing between the electrical circuit and the magnetic model. The primary advantage of the gyrator-capacitor model compared to magnetic circuits is that the concepts of energy storage and energy dissipation from electrical circuits apply directly.