DIY Single MOSFET / IGBT Induction Heater Class-E

In this instructables, we will design a a very powerful yet simple induction heater which uses only single MOSFET / IGBT.

Main components:

1x MOSFET / IGBT (I used IXXH75N60C3D1)

1x Heatsink

1x Copper pipe (6mm in diameter) (6.5uH final inductance)

1000uF - 1600uF Electrolytic Capacitors for Bus

MKP Capacitors (28uF in total, use multiple of them)

CBB Capacitors (7.3uF in total, use multiple small values)

Toroid cores for choke coil (I used 10 of them stacked to get higher inductance)

1x gate driver IC or a BJT transistor (I used IXDN609PI)

1x 5ohm resistor

Some thick wires

Optional Components: (I you decide to run the induction heater for long time)

1x 5ft. (6mm inner diameter) vinyl pipe

1x small submersible pump

1x ceramic fibre paper (I used 1/8 inch thickness)

some zip ties

I made a explanation, tuning and testing video of class-E induction heater. I also explained what are all the components and why there are used. This will be very useful for anyone curious or trying to understand class - E induction heaters. My circuit ran around 34KHz with this setup.

I also a made a python program (I got side tracked) to give pretty much all the data you can ask for for RLC resonant circuits (Series / Parallel). It also saves the values so that you don't have to renter the every time.

Here are some features of the circuit:

ZVS ( Zero Voltage Switching )

Easy Tuning

In this video, I have upgraded my work coil and setup to handle more heat. I have tested iron nails (20kHz) and aluminium (23kHz) with long run time. This is a Class-E induction heater.

This is the third part of my class e induction heater series using single IGBT / MOSFET. I made a lot of design and circuit improvements . I also added water cooling to keep the work coil cool. I also increased voltage and amperage to heat up the materials faster. I tested it for over 10 minutes at 48V and 15 amps. This circuit will work for as long as you want if you keep the shunt capacitors & MOSFET properly cooled. The circuit worked without any problems.