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Discussion in 'Electronic Basics' started by steamer, Jul 5, 2007.

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  1. steamer

    steamer Guest

    --Have traced a gazillion glitches to a faulty UPS. Time to upgrade
    to a better one but I'm thinking it's not much more than a couple of
    batteries and an inverter, yes? Looking for plans to roll my own. Anyone got
    a favorite?
  2. BobG

    BobG Guest

    I think building a sine wave inverter that will put out a couple
    hundred watts is doable with a big transformer. The hard part about
    the grid tie bit is the sync and control. Needs to be recalculateded
    throughout the cycle. Needs a DSP.
  3. Infinitely easier, simpler and probably cheaper to just buy one.

  4. BobG

    BobG Guest

    Hi Dave. Regular old inverters are pretty inexpensive lately... but I
    can't seem to find a smallish gridtie inverter... couple hundred
    watts, couple hundred bucks or so? Exceltech sort of hints that they
    have one, but thery sure dont have a 'buy' button next to it. Got any
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