Transformer design and test are sometimes viewed as an
art rather than a science.
Transformers are imperfect devices, and there will be
differences between a transformer's design values, its test measurements,
and its performance in circuit.
By going back to basics, this tech note will help design
and test engineers understand how a transformer's electrical
characteristics are the result of physical properties of the core and
A partner tech note, "Transformer Testing Basics",
describes how these characteristics are measured in order to confirm that
a transformer has been correctly manufactured and how to avoid some of the
common pitfalls in making those measurements.