Principle and function of high frequency transformer
A Transformer is an essential device for converting AC voltage, current, and impedance. When alternating current flows through the primary coil, the iron core (or magnetic core) generates alternating magnetic flux, inducing voltage in the secondary coil. This fundamental principle applies universally, from standard Transformer to specialized High Frequency Transformer and High Frequency Current Transformer.
The core structure of a Transformer includes an iron/magnetic core and multiple windings. The primary coil connects to the power source, while secondary windings deliver transformed outputs. High Frequency Transformer distinguish themselves by operating at frequencies exceeding 10 kHz, making them indispensable in modern switching power supplies. For instance, half-bridge circuits use High Frequency Transformer to convert high-frequency pulse waves into AC outputs, with voltage ratios determined by winding turns.
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