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 • 41

  • 五二一
    五二一 17 days ago

    Good product after placing the coil with piece of metallic glass

  • ahmar rana
    ahmar rana 23 days ago

    Diagram link please

  • manh le phu
    manh le phu 2 months ago

    Can you share schematics drawing file to me ?
    My email:
    And what kind of coil use?
    Can you share link to buy it

  • Onésio Rodrigues
    Onésio Rodrigues 2 months ago

    Hi, In the diagram R1 is in series with R2, there is no link between them. In your color scheme there is a diode connection between them, is that correct?
    I did a setup just like the scheme (in color) and the IRF740A mosfets burned out.
    Thank you for clarifying me.

    • Mirko Pavleski
      Mirko Pavleski  2 months ago

      @Onésio Rodrigues yes this is correct.Just follow the colour scheme

    • Onésio Rodrigues
      Onésio Rodrigues 2 months ago

      Sorry for the translator, I wanted to refer to Gates instead of Ports

    • Onésio Rodrigues
      Onésio Rodrigues 2 months ago

      @Mirko Pavleski
      Hi Mirko, thank you very much for your clarification. However, I am confused as the 2 schemes are not consistent and I decided to follow the assembly by your color scheme. The negative, (black wire) connects to the Q1, Q2, Q3, Q4 sources and the D1, D2 (blue wire) anodes are connected to the transistor ports, correct?
      Sorry for my doubt, I'm started in electronics.

    • Mirko Pavleski
      Mirko Pavleski  2 months ago

      I'm sorry for the mistake but I just copied the pattern from another web site. R1 and R2 are connected on the minus pole and Anode of D1 to Gate of Q4 . However Colour scheme is correct

  • Dishant Korat
    Dishant Korat 3 months ago

    I want to make this coil in 5 cm total outer diameter. Is it possible?

    • Mirko Pavleski
      Mirko Pavleski  3 months ago

      yes, but with a wire with a slightly smaller diameter and the same number of windings

  • PASSTRAN sci_twi
    PASSTRAN sci_twi 3 months ago +1

    esta excelente amigo
    saludos amigo

  • Urlex
    Urlex 3 months ago +3

    I believe you have one mistake on your first diagram, the cross between R1 and R2 should have a dot, am i right?

    • Mirko Pavleski
      Mirko Pavleski  Month ago

      @Urlex Watch carefully. The device is made exactly according to the schematic presented in the video. You only need to pay attention to the following : R1 and R2 are both connected on the minus pole of power supply

    • Mirko Pavleski
      Mirko Pavleski  Month ago

      @Kashif Javed Watch carefully. The device is made exactly according to the schematic presented in the video. You only need to pay attention to the following : R1 and R2 are both connected on the minus pole of power supply

    • Kashif Javed
      Kashif Javed Month ago

      @Urlex yes transistors are also wrong. These days I am trying to make from an other youtubet. Let see how that work.

    • Urlex
      Urlex Month ago

      @Kashif Javed you should rebuild the diagram based on another manufactered, thats what i did, or contact someone who knows his way around those things. The transistors are also connected wrong.

    • Kashif Javed
      Kashif Javed Month ago

      What about the diodes? Are they not connected wrong in diagram?

  • Na Me
    Na Me 3 months ago

    Can inverter use as induction?

  • Vedamurthi subramaniam
    Vedamurthi subramaniam 3 months ago +1

    thanks lot.good and simple circuit

  • Anand Bhanwal
    Anand Bhanwal 3 months ago

    Can I have your contact number for more details

  • virgilio paulo
    virgilio paulo 4 months ago

    May i know what's the name of the heating plate. Thanks.

  • Mirko Pavleski
    Mirko Pavleski  4 months ago

    Yes, only coil

  • szekeres pista
    szekeres pista 4 months ago +1

    Thank you for the video! What is the difference between the induction heater circuit and induction cooker circuit? Only the Copper pipe vs pancake coil?

    • Arthur A.
      Arthur A. 2 months ago +1

      Would love to know that, too. I want to buy some ZVS induction heater board from china, but i don't know if it will work on a pancake coil.

  • Tulfo Randolf
    Tulfo Randolf 4 months ago

    How many minutes before water this boil? Thanks

  • Juan Lara
    Juan Lara 4 months 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 5 months ago

    how many watts... thanks

  • A Crazy Buda
    A Crazy Buda 6 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 6 months ago


    • luke magdalin
      luke magdalin 4 months ago

      Im sorry I don't speak minecraft enchanted table

  • Rocki Wingard
    Rocki Wingard 8 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!