Sine wave power inverter


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  1. #1
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    Other than the sheer joy of being able to say" I did it", Why?
    see link below:
    http://www.harborfreight.com/cpi/cta...emnumber=92708
    money wise you will be upside down to roll your own.
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    Quote Originally Posted by Joe S. View Post
    Other than the sheer joy of being able to say" I did it", Why?
    see link below:
    http://www.harborfreight.com/cpi/cta...emnumber=92708
    money wise you will be upside down to roll your own.
    I've got this unit (from Walmart a few years ago), physically it's the same thing, same case, same cutouts, same switch/led/positioning, same outlets, same everything, except mine has a fancy label on it and a cigarette lighter adapter instead of alligator clamps.

    It's got a modified sine wave alright... I hooked it up to the 'scope awhile back. Yep, it's a MSW... 1/4 @ +V, 1/4 @ 0V, 1/4 @ -V, 1/4 @ 0V.... 90 degrees spent in each 'phase'. And the peak V was around 150V if I remember right, instead of the +/- 170V I would've thought it should've been.

    P.S. What's an IRF317 anyways?

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