SCR parallel intermediate frequency power supply is a static frequency conversion device that converts three-phase power frequency AC power into single-phase intermediate frequency power. The device adopts parallel inverter circuit, so it has strong load adaptability and can be used as power supply for quenching, diathermy, smelting and other induction heating equipment.It is a composite device of MOSFET bipolar transistor and GTR (high power transistor). Therefore, it not only has the advantages of MOSFET like fast working speed, high input impedance, simple driving circuit and good thermal stability, but also has the advantages of GTR like large current carrying capacity and high blocking voltage, having developed rapidly and widely used in various inverters.

Wuchang Kgbs SCR parallel intermediate frequency power supply technology:

丨High efficiency

丨Low noise operation

丨Small weight

丨Good thermal stability

The basic working principle of Kgbs SCR parallel intermediate frequency power supply is to convert the 50Hz power frequency AC current into DC through a three-phase bridge rectifier circuit, then filter it through a filter (DC reactor), and finally convert the DC into single-phase intermediate frequency AC through the inverter to supply the load, so this inverter is actually an AC-DC-AC converter, and its basic circuit is shown as following: