Copper metal intermediate frequency melting furnace working principle Intermediate frequency power supply adopts IGBT power devices and dual-regulation variable current control technology based on parallel resonance. In this technology, power and frequency are independently controlled. IGBT switching devices and amorphous inductors are used to form a high-frequency chopper circuit to regulate power. IGBT parallel resonance and automatic frequency tracking technology are used to obtain accurate soft switching control of the inverter process. The reliability of the equipment under high power has been greatly improved, which has enabled the equipment to be developed in the high power field, and the 100% equipment temporary load rate has been achieved.
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