Nice little diode find

Discussion in 'Off-Topic' started by inwo, Apr 7, 2014.

  1. inwo

    Thread Starter Well-Known Member

    Nov 7, 2013
    2,435
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    How could I turn this down?:D

    Pulled out of a pile of misc. junk at 7Rivers Surplus this morning.


    1700piv
    240A

    Full 3phase bridge.

    Looks like it works too.

    All the diodes check .42 forward on diode test function.

    The next guy that wants a big battery charger fixed will get a hot rod.:eek:


    http://ixapps.ixys.com/DataSheet/VUO190-16NO7.pdf
     
    Last edited: Apr 7, 2014
  2. Sparky49

    Active Member

    Jul 16, 2011
    834
    417
    Why not just do a teardown. :D
     
  3. #12

    Expert

    Nov 30, 2010
    16,346
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    Similar luck: 12 volt, 150 watt, toroid transformers, at the surplus store for $7.50.
    Four of them in a fan cooled tool box with a big bridge rectifier and I have a 50 amp battery charger.

    Small problem...you can't throw 50 amps into a car battery for more than a few minutes without warping its insides, but it makes a great emergency starter. Three minutes of this thing applied to a dead battery and you can start a car.:p
     
  4. inwo

    Thread Starter Well-Known Member

    Nov 7, 2013
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    The voltage may be low enough to limit charge current. Yet the big boost would be there.:)
     
  5. Wendy

    Moderator

    Mar 24, 2008
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    You have the packrat gene as bad as I do. I got a reel of 1N4007 diodes a couple of years ago for a $1. I'll be leaving a lot of them at my estate sale when my time comes.
     
  6. #12

    Expert

    Nov 30, 2010
    16,346
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    That's why I over-wound them with 17 turns of #12 wire.:D

    Odd thought...there's a wire size named after me?:confused:
     
    Last edited: Apr 7, 2014
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  7. MrChips

    Moderator

    Oct 2, 2009
    12,449
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    Because your resistance is so low?
     
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  8. Sparky49

    Active Member

    Jul 16, 2011
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  9. Brownout

    Well-Known Member

    Jan 10, 2012
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    What is this wonderful sounding place.
     
  10. inwo

    Thread Starter Well-Known Member

    Nov 7, 2013
    2,435
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    My brothers business.;)

    I get free picking for fixing his junk.:D (now that I'm retired)
    He just pulled an electric lift inside for repairs.

    View from my back window:
    Looking over my back yard (geo loop field) and between the two pole buildings. The far building complex is 7Rivers.

    I even have a private road for the golf cart. To the left. Out of field of view.
     
  11. tcmtech

    Well-Known Member

    Nov 4, 2013
    2,043
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    Yea but have you ever went on a service call and came home with a classic fire truck as payment?

    DCP02466.jpg


    I did! :cool:
     
  12. #12

    Expert

    Nov 30, 2010
    16,346
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    No. The best I ever did was to get an auto winder for my SLR camera in exchange for removing a Styrofoam packing worm from the condensor fan blade in a refrigerator. :D
     
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