High-frequency transformer is operating frequency exceeding IF (10kHz) of power transformers, high-frequency switching power supply is mainly used for high-frequency switching power transformers, high-frequency inverters are also used in power and high frequency inverter welding machine for high-frequency inverse variable power transformer. According to the level of the operating frequency can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100kHz ~ 500kHz, 500kHz ~ 1MHz, 1MHz or more.



