High-frequency transformer (HFT) operates using the same principles as standard transformers. The main difference is that, as
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High-frequency transformer (HFT) operates using the same principles as standard transformers.
The main difference is that, as its name implies, it operates at higher frequencies, whereas most
power transformers operate at 50/60 Hz, HFT uses frequency ranges from 20 kHz to over 1MHz.
HFT uses a ferrite core due to high magnetic permeability. This type of transformers offers very
low losses and its size is significantly smaller than the conventional one. Due to this, ferrite core
transformers are used in high-frequency applications such as in Switch Mode Power Supply
(SMPS).
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