High-frequency transformer is the most important component of switching power supply. There are many topologies in switching power supplies. For example, in a half-bridge power conversion circuit, during operation, two switching transistors are turned on in turn to generate a 100kHz high-frequency pulse wave, which is then transformed through a high-frequency transformer to output alternating current. The ratio of the turns of each winding coil of the high-frequency transformer is determined. determines the output voltage. The most conspicuous in a typical half-bridge transformer circuit are the three high-frequency transformers: main transformer, driving transformer and auxiliary transformer (standby transformer). Each transformer has its own measurement standards in national regulations, such as main transformer, As long as it is a power supply above 200W, its core diameter (height) must not be less than 35mm. As for the auxiliary transformer, when the power supply power does not exceed 300W, it is enough for the core diameter to reach 16mm.

High-frequency transformers are power transformers whose operating frequency exceeds intermediate frequency (10kHz). They are mainly used as high-frequency switching power supply transformers in high-frequency switching power supplies. They are also used in high-frequency inverter power supplies and high-frequency inverters. It is used as a high-frequency inverter power transformer in welding machines. According to the working frequency, it can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100kHz~500kHz, 500kHz~1MHz, and above 10MHz.

Scope of application of high-frequency transformers

1. High-frequency transformers will be used in the dry cleaning industry. After all, steam cleaning is cleaner and more effective.

2. In the food processing industry, many foods require steam for processing, just like the sealing of cans and the cooking of other foods. Steam is indispensable, so a high-frequency transformer is inevitable.

3. There are many places where steam is used in the biochemical industry, such as sterilization in fermenters, reactions in reactors, and other physical and chemical processes that require high-temperature steam.

4. The heating industry also uses large-scale high-frequency transformers.

High-frequency transformers are used in many industries, but most people don’t know which industries will use them. Here is a detailed introduction for you:

1. Switch Power supply industry

2. Electric power, electrical and electrical equipment industry

3. Medical equipment industry

4. Communication equipment industry

5. Solar energy and inverter industry

6. Electric vehicle charger industry

7. Vehicle electronic equipment industry

8. Smart home industry

< p> 9. Environmental protection equipment industry

10. New energy industry

11. Mechanical equipment industry

12. Household appliance industry

13. Digital product industry

14. Fitness and beauty equipment industry

15. LED lighting industry

16. Inverter industry