
What is high frequency transformer, in many types of transformer, what is the working principle of high frequency transformer, high frequency transformer is the most important part of the switching power supply, pay attention to the proportion of the turns of each winding of the high frequency transformer determines the output voltage.
》What is high-frequency transformer
High frequency transformer is a power transformer whose working frequency exceeds the medium frequency (10kHz). It is mainly used as a high frequency switching power transformer, and also used as a high frequency inverter power transformer and high frequency inverter welder. According to the working frequency, it can be divided into several grades: 10khz-50khz, 50KHz-100khz, 100khz-500khz, 500KHz-1mhz and more than 10MHz.
Transformer is to transform the AC voltage, current and impedance of the device, when the primary coil through the AC current, the iron core (or magnetic core) will generate ac flux, so that the secondary coil induced voltage (or current).
The transformer consists of an iron core (or magnetic core) and a coil, which has two or more windings. The winding connected to the power supply is called the primary coil, and the rest is called the secondary coil.
》USES:
High frequency transformer is a power transformer whose working frequency exceeds the medium frequency (10kHz). It is mainly used as a high frequency switching power transformer, and also used as a high frequency inverter power transformer and high frequency inverter welder. According to the working frequency, it can be divided into several grades: 10khz-50khz, 50KHz-100khz, 100khz-500khz, 500KHz-1mhz and above 1MHz. When the transmission power is relatively large, IGBT is generally used in power devices. Because of the phenomenon of off current trailing, IGBT has a low working frequency. Transmission power is relatively small, you can use MOSFET, the working frequency is relatively high.