Transformers are important in our daily lives. They exist in the electrical equipment related to power supply. Let's talk about something about transformers. 1. Difference between high frequency transformers and low frequency transformers In general, low-frequency transformer refers to "power frequency transformer". It works at 50Hz, and changes the voltage. The iron core used in low-frequency transformer is generally silicon steel sheet with high magnetic permeability. High frequency transformer refers to a transformer that works at high frequency and acts as a transducer. The frequency of the magnetic field is high, eddy currents will be generated in the silicon steel sheet (the conversion speed of the small magnet in the silicon steel sheet cannot keep up), so the high frequency transformer usually use high frequency ferrite as the core. The difference between high frequency transformer and low frequency transformer lies in the difference in frequency. It