How does Induction Heating Work? || DIY Induction Heater Circuit

  • Published on Jan 15, 2017
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    Induction Heater featured in the video:
    Parts list:
    2x IRF540 MOSFET:
    2x 330nF Capacitor:
    2x UF4007 Diode:
    2x 220Ω Resistor:
    2x 0.1mH Inductor:
    2x IRF540 MOSFET:
    2x 330nF Capacitor:
    2x UF4007 Diode:
    2x 220Ω Resistor:
    2x 0.1mH Inductor:
    2x IRF540 MOSFET:
    2x 330nF Capacitor:
    2x UF4007 Diode:
    2x 220Ω Resistor:
    2x 0.1mH Inductor: -
    In this video I will show you how a common induction heater works, what kind of materials it can heat up and how you can easily create your own.
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  • Science & TechnologyScience & Technology

Comments • 1 361

  • Rina Hidayat
    Rina Hidayat 5 days ago

    how to make tranfomers

  • ThomasHaberkorn
    ThomasHaberkorn 7 days ago

    nice website for explanation:

  • Mr. Black
    Mr. Black 9 days ago

    So in theory, i could use an induction heater as a forge of sorts for metal working. Crazy stuff.

  • Bob Gao
    Bob Gao 10 days ago

    This coil will be melted if no water cooled

  • Ken W.
    Ken W. 13 days ago

    Nice video. I wish I could write diagrams like you do.

  • Caden Johnson
    Caden Johnson 15 days ago

    What multimeter are you using

  • Maaster Muñoz
    Maaster Muñoz 16 days ago

    y el diagrama???

  • Fareed Clarity
    Fareed Clarity 17 days ago

    Great! I've made it

  • Captain
    Captain 17 days ago

    would this be a good way to heat an old house using radiatiors?

  • Kenn Keck
    Kenn Keck 25 days ago


  • Chris Russell
    Chris Russell 27 days ago

    i miss the days of playing with a 25KW industrial heater....

    old guy in the shop thought CF would be a good prod (we brazed carbide tools)

    "you ready for this mate?"

    BANG. no more carbon fibre rod!

    CF is highly conductive!

    that thing would vaporise a 1.5 inch bar with a 2 inch, 4 turn coil.

  • autistic puggerino
    autistic puggerino Month ago

    I got this for my titanium dab straw tip and it works like a charm 😍 like 7 sec heat up and its dab town (the first thing not what you made lol)

  • TerroristenSlime
    TerroristenSlime Month ago

    Wenn ich mir das alles anschaue denk ich mir, wer ist auf die Idee gekommen xD

    • Karl Baum
      Karl Baum 4 days ago +1

      Diese Schaltung wurde am 30.11.1989 unter der Patent-Nr. 35 19 489 vom
      Deutschen Patentamt der Fa. Hüttinger, Freiburg i. Br. zugesprochen!
      Als Erfinder wird genannt: Karl D. Baum

  • Niaz Chowdhury
    Niaz Chowdhury Month ago

    sir with all your respect i want to say that i sometimes watch your videos because the title of your video is very attractive , But when i watched it within 10 to 15 seconds i totally lost my interest, Believe me its happen all the time trying to watch any of your videos. May be i am stupid. But i some times i think not every body is a professor or a scientist like you so why you make a simple thing Harder, Look man i am not a engineer i don't have any back ground in electronics but i can make a induction heater in two hours may be three...How i learn that?
    Every thing i learn and everything i can make or trying to make its all from you guys who make beautiful videos and they explains that subject very easy and understandable as possible..Look man don't misunderstand me , People like us searching TheXvid for learning something what we can't learn as this Quickly and Easily without talented guys like you...So i Respect you and very Grateful to you guys...
    I watch your videos many years from now that i can't remember but never can't watch it till the End.. I DON'T USUALLY COMMENTS ON TheXvid BUT TODAY MY HEART WANTS TO WRITE SOME THING....I HOPE YOU UNDERSTAND AND ALSO FORGIVE ME FOR THIS LONG COMMENTS......take care...

  • Danidu Fernando
    Danidu Fernando Month ago

    I don't get a thing but I watch it anyway

  • tobsmonster2
    tobsmonster2 Month ago

    It’s been so many years since I’ve drawn a circuit diagram. Yours are beautiful, makes me want to go back

  • A-Triangle
    A-Triangle Month ago

    Will increase of frequency be beneficial for inductive heating ?
    Or is the frequency determined by the heating coil ?

    • A-Triangle
      A-Triangle 18 days ago

      @Mark Krützmann Thanks for the thorough answer.
      I asked, because electicity costs money.
      So, a higher frequency, needs less current, for the same effect.
      In fact, a LC circuit will generate a frequency, between the coil and capacitor.
      This will keep going, for a while, even when you do not power the circuit.
      Of course, this effect will disspate quickly, when put you some material
      in the coil. However, you might just need to power the circuit, with
      small pulses, to keep it going.
      I am just brainstorming here, to see how this can be made
      energy efficient.

    • Mark Krützmann
      Mark Krützmann 19 days ago

      The frequency is determined by the capacitors and the working coil. You can easily change the capacitance to change the frequency or wind another coil, but bear in mind that the inductance changes heavily when ferromagnetic material (like the iron rod) is inserted.
      As for the effects of a higher frequency: yes, it does speed up the heating process as the hysteresis loss happens more often. But! the higher the frequency, the higher are effects like the skin effect and you are effectively heating just the outer layer of your iron rod at some point.
      So, there is an optimum for a given iron diameter. Another problem is that the coil will have losses, too. This becomes very hard to handle quickly and you have to start watercooling the coil (use a copper tube).
      More current obviously also helps, so just increasing the voltage will heat up your stuff faster as well. You do need a beefier supply for that to work than @GreatScott though.

  • Anil Kumar Sharma
    Anil Kumar Sharma Month ago

    this graph is like a duck duct, what a dedication and detection

  • Anil Kumar Sharma
    Anil Kumar Sharma Month ago

    if we use tesla coil for voltage will it possible to boil water with that??
    if we use battery then how much energy required by induction cook top

    • Overloader7
      Overloader7 Month ago

      Problem is not voltage - current is. Tesla coil while having high voltage, also have high resistance, so current will be quite low

  • Magi H
    Magi H Month ago

    1:46 Wait... are you german?

  • Miguel Santana
    Miguel Santana Month ago

    The best demonstration of the phenomenon that exists on youtube. You showed the results with different materials in a very simple but useful way.The little knife is just the appetizer. Congratulations.

  • pointer2null
    pointer2null Month ago

    Now I understand why, despite the eddie currents, my aluminium pans didn't work in the induction hob!

  • Mellonoma The Great

    I've reproduced this exactly and it doesn't work.

  • Aaron Emmanuel
    Aaron Emmanuel Month ago

    Why do bad things happen to good people!?

  • Vineet Verma
    Vineet Verma Month ago

    I am still unable to understand as why the overall current increased from the source....
    Eddy currents should oppose the inducing current as per lenz law...

  • 1FatHappyBirthday
    1FatHappyBirthday Month ago

    I ron. Love that!

  • Jason Schaub
    Jason Schaub Month ago

    Odd question but does anyone know what type of pen he has?

  • WagnerOutdoors
    WagnerOutdoors Month ago

    Just the tip

  • Khanh Hua
    Khanh Hua Month ago

    Look at the math!

  • Yusuf Ahmed
    Yusuf Ahmed Month ago

    40 seconds into the video. Subscribed.


    Plz share how to reverse engineer pcb circuit using continuity test . Because its is little meshy me and many :)

  • maheshpatil03
    maheshpatil03 2 months ago +2

    Drawing coil in diagram was biggest hassle for me in college days 😂

  • Ronnie Pirtle Jr
    Ronnie Pirtle Jr 2 months ago +1

    Insert the tip only.... that's only teasing it!

  • erfan media
    erfan media 2 months ago


  • McOoz FPVish
    McOoz FPVish 2 months ago

    Thanks very informative...

  • Agustin Rovero
    Agustin Rovero 2 months ago

    At what frequency does it oscillate?

  • Christopher Teale
    Christopher Teale 2 months ago

    But you don't need to insert the pot into the coil for the induction cooker. Is that done with a stronger magnetic field?

  • Pyro213
    Pyro213 2 months ago

    couldn't you hook something like this up to a simple mains voltage to dc converter to draw more watts thus more heating potential? Or would it better to use a larger coil?

  • Kaluvan Hariharan
    Kaluvan Hariharan 2 months ago

    Very nice and informative video. Pls explain What is the role of L2 and L3?.

  • Talha Munir
    Talha Munir 3 months ago

    how can we find the power of heating material by calculation?

  • James Reedy
    James Reedy 3 months ago

    Just the tip!

  • Based Centrist
    Based Centrist 3 months ago

    This channel is amazing

  • sanket kelkar
    sanket kelkar 3 months ago

    What is the power factor of induction heater?

  • paperman12
    paperman12 3 months ago

    -9000 degree knife vs


    Hi, i was tried, when i increasing the Voltage form 0-3 v one MOSFET was getting over heat, at the same time it is drawing more than 3.5A @ 3.5V range, can you please let me know the reason.
    Please help me to resolve the issue

  • Paul Göbel
    Paul Göbel 3 months ago

    Man hört richtig das du deutsch bist

  • liquid paint 2
    liquid paint 2 3 months ago

    Howz those metal getting hotter ? Is that because of semi conductors electron flow with resistance it self ?

  • S Boles
    S Boles 3 months ago

    Hey, i just tried to build a circuit following the schematic of your circuit but i always get a type of short circuit... Im not getting my powersupply to get out of the current limitation mode which suggests a short circuit. Do you have any idea where this could come from? I double checked the mosfets for pin errors etc but the circuit itself seems to be exactly the one you showed in the video. Thanks in advance!

  • Make Toys
    Make Toys 3 months ago

    you do very well

  • Make Toys
    Make Toys 3 months ago

  • arga giga
    arga giga 3 months ago +1

    Hey,Please make a video induction cooker.I can already use induction heater,Thank you for making the induction heater.

  • ime ferrariz
    ime ferrariz 3 months ago

    omg 📕📕🖌🖍📌✒️🖋🖊

  • Robert Harris
    Robert Harris 3 months ago

    old video but I gotta ask - did you try heating a silica rod?

  • AKA mechatronics
    AKA mechatronics 3 months ago

    Do your mosfets overheat?

  • Google support
    Google support 4 months ago

    Non professional don't understand this experiment it is related to electrical engineering ' hub of knowledge. When current is pass in the turns of a coil that produces magnetic flux likes with itself is known as self inductance or solenoid. The magneting force cut air which is to be equal to absolute permeability multiplied by magnetic field.

  • S H
    S H 4 months ago

    IRON, not IREN

  • ThomasHaberkorn
    ThomasHaberkorn 4 months ago

    the one thing which bugs me about this circuit are the 2 inductors (here: 100µH) at both sides of the main coil. Why are they needed?

  • My Own
    My Own 4 months ago

    Nice work.. schematic please.

  • Sanad Altarawneh
    Sanad Altarawneh 4 months ago

    "Simple schematic" 4:54

  • supickumaterinu
    supickumaterinu 4 months ago

    would i burn out induction heater driver if i drive it without coil? Could i put two electrodes instead of coil and point-weld li-ion battery strips?