... 5kw-8kw electromagnetism inductance heating up controller for injection molding machine 1,Rated voltage: AC 380V/50Hz Triphase 5kw ... 90%3, IGBT heat preservation: 95±5°C4, Work frequency: 16-30KHZ5, Half-bridge series resonant converter6, With Soft ... 10-10.5A, showing the normal operating frequency for the 17-20K or so, if the ... high frequency to a necessity to increase the coil, ...