DIY induction heater circuit with flat spiral coil(pancake coil)Full instructions

  • Published on Apr 4, 2019
  • Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents. In this video, I am going to show you how to make a powerful induction heater at home.
    Тhe base of the device is the electronic circuit called a ZVS driver (Zero Voltage Switching).To operate, a ZVS driver is necessary to have an oscillator circuit consisting of a capacitor and a coil. In this case, it is characteristic that the coil has a flat disk shape that is also used in commercial induction cookers. Also, the coil is made of silicon insulated copper wire with a cross-section of 2.5mm square, instead of copper pipe as is common in DIY projects. This wire is used for servicing electric cookers so it can be found in every tool shop or hardware store.
    The advantage in this way is that this wire is much cheaper and the production of the coil is much easier. In addition, silicone insulation is resistant to high temperatures and a very bad heat conductor so that the metal container is placed directly on the wire, and after removing the heated vessel, the insulation of the wire is cold.
    As you can see on the video, after removing the heated container, you can immediately touch the "hotplate". Another advantage of this scheme is that it works on 12 volts so can use the standard PC power supply. Mosfet transistors are removed from the old UPS device and are labeled P65NF06, but can be used others with similar characteristics, for example, IRF640, IRF 740, IRFZ44, etc. Capacitors must be quality MKP x2 type for 630 volts or more. The total capacity is obtained from several parallel-connected small capacitors and should be about 4.5 microfarads.
    The video also provides a circuit schematic and block diagram of the device. Consumption without a bowl is 45W and at load 220W to 260W.
    Thanks for watching
  • Science & TechnologyScience & Technology

Comments • 12

  • Tulfo Randolf
    Tulfo Randolf 5 days ago

    How many minutes before water this boil? Thanks

  • Juan Lara
    Juan Lara 8 days ago

    Hi. Your device is pretty cool. I was wondering if you have measured the frequency of the oscillation. I'm looking a device that could handle high frequency oscillations.

  • Noidirepse Baculi
    Noidirepse Baculi Month ago

    how many watts... thanks

  • A Crazy Buda
    A Crazy Buda 2 months ago

    si uso un coil con mas vueltas? consume mas corriente no? por el esquema que das en el video, tengo como limite 20amps... supongo que si se puede?

  • tractorist mashinist
    tractorist mashinist 2 months ago


    • luke magdalin
      luke magdalin 13 days ago

      Im sorry I don't speak minecraft enchanted table

  • Rocki Wingard
    Rocki Wingard 3 months ago

    I've been looking for a video EXACTLY like this! My only suggestion is include a ruler in your build process pics and/or component pics to show scale.
    You're my hero!