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Thread: Cheap Drive ESC

  1. #21
    What voltage would these work up to when modified?

  2. #22
    Despite the fact they say 8.4v on the packet, I've run them up to 13V fine, and that was before all the mods. I went through checking the data sheets for every component I could, and none of them were rated for anything less than 20V, so I think they're fairly safe at 13V.

    The board was surprisingly more robust than the spec said; the MOSFETS used could handle 32A continuous and 120A peak according to the data sheet. Normally with these things, they just take the specs straight from the data sheets. I think they must have toned them all down due to the lousey cables not being up to it...

  3. #23
    The design was good enough at least that I may have to reverse engineer it for my heavyweight ESC..
    Last edited by Rapidrory; 12th August 2014 at 22:18. Reason: Posted twice accidentally so thought I'd at least use it..

  4. #24
    wow ......if you get bored you could try getting these to work properly
    http://www.ebay.co.uk/itm/320A-High-...item5d3bd80ccd

    i got the first version which worked well and could happily run a 4wd bot over powered from 3s to 4s without getting hot but then they changed something and when you slam it from 1 direction to another they just stop

  5. #25
    TBH, for £2 I'm impressed it did anything! That sounds like a firmware issue, so the same trick might work. Definitely have to check out those for my heavy! :L You able to get a detailed picture of the circuit board? Would give me an idea of the work required to upgrade it..
    Last edited by Rapidrory; 12th August 2014 at 22:37.

  6. #26
    i did have 1 but cant find it will take a new pic and post it up tomorrow

  7. #27
    Cheers What I really want to find out is what it's actual current rating is (put 320A through that and it will almost certainly explode spectacularly :P) and also if it can be run at / upgraded to 24v. I've spent £25 on my heavy so far, and the only part I'm lacking now is an ESC, so £16 wouldn't be bad if it could be made to work!

  8. #28
    here are the pics hope they help




  9. #29
    Thanks I can't read the chip numbers though; are you able to see what the numbers on the main drive MOSFETs are?
    Last edited by Rapidrory; 14th August 2014 at 00:09.

  10. #30
    the nuber on the bank of 6 fets is

    IRL 3803
    R128p
    U6 Z0

    the chip on the bottom is
    H1123 GB
    LM339

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