High-frequency transformers are electromagnetic components with operating frequencies exceeding 10kHz, and are widely used in power electronic devices such as switching power supplies, inverters, and frequency converters. The core principle is based on electromagnetic induction. Through the high-frequency alternating current in the primary coil, an alternating magnetic field is generated in the magnetic core, thereby inducing a voltage in the secondary coil to achieve energy transmission and voltage transformation. Compared with traditional power frequency transformers, high-frequency transformers are smaller in size, more efficient, and have a wide voltage regulation range, strong anti-interference ability and good electrical isolation performance.
In terms of application, high-frequency transformers are key components of switching power supplies, used for AC-DC and DC-DC conversions, such as mobile phone chargers and server power supplies. In addition, it plays an important role in the field of new energy, communication equipment and industrial automation.
In the future, with the development of new materials and integrated design, high-frequency transformers will further enhance power density and efficiency to meet the demands of emerging fields such as data centers, renewable energy, and smart grids.