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EE25 1.15mH 1KHz HIGH FREQUENCY ELECTRONIC AC MICRO TRANSFORMER
High-frequency transformers operate using the same basic principles
as standard transformers. The primary difference is that, as their
name implies, they operate at much higher frequencies — while most
line voltage transformers operate at 50 or 60 Hz, high-frequency
transformers use frequencies from 20 KHz to over 1MHz.Operating at
a higher frequency has many benefits, the first of which is
size.For any given power rating, the higher the frequency, the
smaller
the transformer can be.Second, because the transformer is smaller,
less copper wire is needed, thus reducing the losses and helping to
make the transformer more efficient. Also, since the core is
typically ferrite, a wide variety of geometries are available so
the transformer can be tailor-made for the application. Whether
additional shielding or a specific form factor is required, the
chances are good that a ferrite core exists to meet the
requirement.