IGBT medium frequency power supply is a constant power output power, put a small amount of material can achieve the full power output, and always remains the same, because part of the series resonant inverter, and the inverter voltage high, all IGBT frequency than the ordinary thyristor medium frequency energy-saving; IGBT if using the frequency modulation power, rectifier consists of a full bridge rectifier, inductance and capacitance filter, and have been working in 500V, so the IGBT intermediate frequency harmonic pollution of small, low power.
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