To double the heating power in an induction heater.

Discussion in 'Power Electronics' started by RollingStones, Oct 11, 2018.

  1. RollingStones

    Thread Starter New Member

    Oct 11, 2018
    4
    1
    I have been fiddling with an off the shelf 1000W, 48 V, 20 Amp ZVS driver with a 5 mm copper work coil and powered by a MeanWell RSP-1000-48. The medium I'm heating is an iron pipe (due to it's highly ferromagnetic properties).

    Tried using litz wire instead of copper coil, but with limited results. However as I understand it a litz wire should be the preferred type of heating "coil". The diameter of copper tube and litz wire coil is identical.

    The first testing with the off the shelf ZVS drive I notices quite a heat loss from within the heating coil. Then I completely insulated the iron pipe with an aero gel matting and am now retaining all the heat.

    My main question is: If I were to double the size of the ZVS driver to a 2kW, 48V 20 amp and likewise have a 2kW 48V power supply .....would I be able to heat the Iron pipe twice as fast?
     
    Dodgydave likes this.
  2. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
    7,524
    1,241
    You would need a 48V 40Amp psu,...
     
  3. RollingStones

    Thread Starter New Member

    Oct 11, 2018
    4
    1
    @Dodgydave Will it matter whether doubling the amps is done with a power supply of i.e. a Mean Well RSP-2000-48 that has an with an output of:
    48V
    42A
    2016W


    or the Mean Well RSP-1000-24
    24V
    40A
    960W

    ??

    (Not taking into account the 2 amps difference of course)
     
  4. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
    7,524
    1,241
    If you want 2KW, then you need a psu to comply with that rating...
     
  5. RollingStones

    Thread Starter New Member

    Oct 11, 2018
    4
    1
    In other words the RSP-2000-48 connected to a 2kW, 48V 40 amp ZVS driver will provide the same energy as the RPS-1000-24 connected to a 1kW, 24V, 40 amp....is that correct?
     
  6. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
    7,524
    1,241
    No, 48V x40A = 1920W.

    24V x 40A = 960W .
     
  7. RollingStones

    Thread Starter New Member

    Oct 11, 2018
    4
    1
    Thanks - got it.
     
Loading...