High -frequency transformer is a power transformer that operates more than the mid -frequency (10kHz). It is mainly used in high -frequency switching power supply as a high -frequency switching power transformer. It is also used for high -frequency inverter power and high -frequency inverter welded machines as high -frequency reverse reverse reverse reverse reverse reverse reverse reverse inverted machines.The power transformer.According to the working frequency, it can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100kHz ～ 500kHz, 500kHz ～ 1MHz, 1MHz or more.
High -frequency transformer test
1. The test method of high -frequency transformers is generally speaking.
High -frequency transformer model
I. The characteristics of the EI22 high -frequency transformers of theEI22 high -frequency transformer have the characteristics of cheap, small size, and high reliability.2. EI22 high-frequency transformers ofEI22 high-frequency transformers are often used in drive transformers, DC-DC converters, mobile device transformers, etc.3. The price range of the price of the EI22 high-frequency transformer in the high-frequency transformers of theEI22 is generally between 1.2-3.5 yuan. The price mainly depends on the complexity of the products process, the customers requirements for raw materials, and whether the security certification is required.
High -frequency transformer design
The first step is to determine the original border turn.Of course, first of all, you need to choose a magnetic core. Let the minimum voltage of the original edge input is VS. The turnover time is expressed by TON. I also need to set a magnetic core amplitude. Generally, I take 0.2 to 0.25T, because the positive stimulator transformerThere is no need to DC component, so this value can be larger than the anti -excitement. The number of original borders np = vs*ton/ae*b, where AE is the cross -sectional area of ??the magnetic core. The second step, draw the original original, draw the original original, draw the original original.The edge current waveform is calculated to calculate the values ??of the original edge current waveform, so as to determine the wire diameter. As shown in the figure below, because the current waveform is induced from the sub -border, its waveform is the part of the inductive current waveform switch tube. This current.The peak of the waveform is the peak value ratio ratio of the inductor current.)*D and then select the line according to this current value, the current density is the same as above.
High -frequency transformer parameter
The pulse transformer of high -frequency transformer production and technical parameter can also be called a switch transformer, or simply called high -frequency transformer.In the traditional high -frequency transformer design, due to the limitation of magnetic core materials, its operating frequency is low, generally about 20kHz.With the continuous development of power technology, the miniaturization, high frequency and high power of the power system have become an eternal research direction and development trend.Therefore, studying a higher -frequency power transformer is a key factor in reducing the volume of the power system and increasing the power output power ratio.

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