The relationship between the physics and the small-signal electrical
behaviour of transformers
By David W Knight
(version 0.10 provisional, 0.7 MiB)
This article introduces the theory required for the analysis
and modelling of inductively-coupled networks. The material presented
is applicable to electrical transformers of all types, but the
examples given relate primarily to high-frequency signal-processing
applications. Familiarity with circuit analysis technique is
assumed; but magnetism is discussed at an elementary level in
order to ensure that the fundamental concepts are understood.
the basic properties of ideal transformers is here assumed. A
brief introduction is given in AC Theory, section 41.