igbt high frequency advantages:
1, small size, light weight
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Taking the 12V\/5kA rectifier power supply as an example, the first generation of three-phase regulator covers an area of 5 square meters and weighs up to several thousand kilograms. The second generation three-phase thyristor power supply weighs about 400 kg. In comparison, the IGBT high-frequency switching power supply is not only small in size and light in weight, of which the weight is only 50 kg.
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2, low energy consumption
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The first generation and the second generation of rectifier power supply have eddy current losses, especially the efficiency of the first generation of rectifier power supply is less than 70%, while the IGBT high frequency switching power supply is as high as 90%.
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3, high efficiency
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Compared with ordinary rectifier power supply, IGBT high-frequency switching power supply output is high-frequency pulse current, so it is not only tight coating, high processing efficiency, but also beautiful appearance and good luster.
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1. Igbts are not only expensive.
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2. Easy to damage, once the machine stops then the enterprise will face greater economic losses. Overvoltage damage, overcurrent damage or overheat damage. Less common causes of damage are damage due to poor IGBT drive, damage due to open circuit between GS, or damage due to the high frequency of the main control board push IGBT can not adapt to damage.