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Question IBT-2 Alternatives

Discussion in 'New users start here - FAQ' started by Michael Yoshi, Jul 7, 2025 at 06:26.

  1. Michael Yoshi

    Michael Yoshi New Member

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    Looking around the forums, I'm having a hard time finding proper drivers. IBT-2s seem to no longer be recommended becuase they burn out. I see a 100a board that's 2 drivers but then I would need to go from 2 separate PSUs to 1 bigger one. Is there a simple drop in replacement for the IBT-2s or what else have pcople done?
    Michael Yoshi, Jul 7, 2025 at 06:26
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    I have not used them, but the 100a boards look to take from 12-48v so I can see why you would need to change PSUs, unless inadequate, on the specs you should be able to use the 100a boards as very robust alternatives to IBT-2s.

    Or am I missing something in what you plan?
    noorbeast, Jul 7, 2025 at 06:54
    #2
  3. Michael Yoshi

    Michael Yoshi New Member

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    I'm using two Meanwell LRS-350-24 units (350w) right now with two of the jazzy style wheelchair motors (24v/250w at 75rpm). I don't think a single 350w power supply is enough to drive both motors as they'd max 500 watts.
    Michael Yoshi, Jul 7, 2025 at 07:04
    #3
  4. iLLuac4

    iLLuac4 Active Member

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    Wire them in paralel. Not optimal but it should work. Also did you measure that they actually consumes 500W? I doubt that they do if the seat is balanced.
    iLLuac4, Jul 7, 2025 at 07:53
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  5. Michael Yoshi

    Michael Yoshi New Member

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    Yea I was thinking that. I hear there can be issues merging power supplies like that though. I don't want to burn down my house. Wife would be mad at me.
    Michael Yoshi, Jul 7, 2025 at 08:13
    #5
  6. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    I presumed you were using 2 IBT2s and could do the same with the 100a boards .

    I get the 100a boards can do both motors, but the option is there to use 2, as a drop in replacement.
    noorbeast, Jul 7, 2025 at 09:44
    #6