Pure Sine wave inverter vs Modified Sine wave Inverter.

Discussion in 'Designing, building, making and powering your life' started by areba, Oct 13, 2015.

  1. areba

    areba Junior Member

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    Confused, but keen not to fry some electronics that I just cant afford to down. Is the difference in price justifiable? would my macbook and Entertainment units suffer under Modified Sine wave conditions?
     
  2. 9anda1f

    9anda1f Administrator Staff Member

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    Hi Areba,
    Modified Sine Wave vs Pure Sine Wave inverters is confusing to me too. My grid tie inverters are pure sine wave of necessity, but my greenhouse inverter is of the modified sine wave variety.

    This little article seems to explain the issues succinctly: https://www.donrowe.com/power-inverter-faq-a/258.htm#modified
    and this thread: https://forum.solar-electric.com/di...ll-not-work-with-modified-sine-wave-inverters

    As far as your Mac is concerned, "Retired Engineer" in this thread says the modified sine wave inverters are fine with the Mac wall plug-in: https://discussions.apple.com/thread/2090210?tstart=0

    From what I've read, your entertainment units may suffer from noise in the audio and/or video when using a MSWI. Not sure how it might affect each unit's power supply life ...
     
  3. areba

    areba Junior Member

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    thanks 9ANDA1F !
    Had a long chat with my friend who advised me to go for the cheap "modified sine wave" Inverters and then get a good UPS between it and the "soft " electronics circuit. He reackons it's more bang for the buck without losing on the importance of cleaning up the output into the electronics.
     

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