The research of the digital control of IGBT superaudio-frequency heating power supply

Using the principle of electromagnetic induction the induction heating power has many merits,such as high heating efficiency and speed.The IGBT superaudio-frequency induction power supply has been used in industry more and more widely.This paper provides a new design of the control circuit of the power supply.It develops the invertion and protection pert of mid-frequency power supply to trigger and protect IGBT.The result shows the design is simple and effective.