How Does an Electronic Transformer Work April 2,2022.

The high frequency transformer operates at a frequency higher than the intermediate frequency (10kHz), power transformer is mainly used as high-frequency switching power transformer in high-frequency switching power supply, as well as high-frequency inverter power transformer in high-frequency inverter power supply and high-frequency inverter welding machine. 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, Power devices generally use IGBT. Due to the tailing phenomenon of IGBT turn-off current, the working frequency is relatively low; If the transmission power is relatively small, the working frequency is relatively high.


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Why is high frequency transformer important in switching power supply?

There are many topologies in switching power supply. For example, the half bridge power conversion circuit, when working two switching triodes turn on in turn to generate 100kHz high-frequency pulse wave, and then transform the voltage through the high-frequency transformer to output AC. the ratio of turns of each winding coil of the high-frequency transformer determines the output voltage. In a typical half bridge transformer circuit, the most prominent are three high-frequency transformers: main transformer For drive transformer and auxiliary transformer (standby transformer), each transformer has its own measurement standard in national regulations. For example, as long as the main transformer is a power supply of more than 200W, its magnetic core diameter (height) shall not be less than 35mm. For auxiliary transformer, when the power supply power rate does not exceed 300W, its magnetic core diameter shall reach 16mm.


We design and produce high frequency transformers.

Hefei Mycoil Technology Co.,Ltd(MCT)is a company specializing in R & D various switching power supply transformers. We have strong technical support, with wide range of raw material channels, we can provide customers with high quality and competitive price electronic magnetic components. Most transformers accept custom design and OEM.

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If you have any interest in our products, please feel free to contact us。

Email:   sales003@mycoiltech.com

Skype ID:    live:sales003_125

Contact: Miss Lily


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