High frequency power transformer concept details

The function of the power transformer is transmitted power and voltage transformation and insulation isolation, as a kind of main soft magnetic magnetic element, in the power supply technology and widely used in the power electronic technology. According to the size of the transmit power, the power transformer can be divided into several files: more than 10 kVA for high-power, 10 kVA ~ 0.5 kVA is in power, 0.5 kVA ~ 25 va for small power, 25 va micro power are as follows. The transmit power is different, the design of power transformer is different also, should be self-evident. Someone according to its main function is to transmit Power, the English name "Power Transformers" translated into "Power transformer", is still used in many literatures. What is called "power transformer", or called "power transformer"? To be in terms of science and technology authority to choose decision.The same English name "Power Transformer", also can be translated into "Power Transformer. Power transformer is mainly used for power distribution system in the power transfer and voltage transformation and insulation isolation effect, the original side voltage of 6 kv high voltage, power minimum 5 kVA, biggest more than tens of thousands of kVA. Working principle of the power transformer and power transformer, although are based on the principle of electromagnetic induction, but the power transformer which emphasizes power transmission, and emphasizes the high insulation isolation voltage, whether in the core coil, and the design of insulation structure, with small power transmission, low voltage insulation isolation of power transformers have significant differences, more power transformer design optimization design conditions can not be regurgitated in power transformer applications. Is not the same as the design method of power transformer and power transformer, also should be self-evident.High frequency power transformer is the working frequency than medium frequency power supply transformer (10 KHZ), mainly used in high frequency switching power supply for high frequency switching power supply transformer, there are also used in high frequency inverter power supplies and high frequency inverter welding machine for high frequency inverter power supply transformer. According to the working frequency of high and low, can be divided into several levels: 10 KHZ ~ 50 KHZ, 50 KHZ to 100 KHZ, 100 KHZ to 500 KHZ, 500 KHZ to 1 MHZ, above 1 MHZ. Transmit power is larger, the work frequency is lower; Transmit power is small, working frequency is higher. In this way, the difference of both the working frequency, and the difference of transmission power, working frequency power transformer design method of different class, also should be self-evident.