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Thread: true sine wave inverter

  1. #1 true sine wave inverter 
    sak
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    Can someone answer me: How a conventional inverter can damage electronics at home? What is a true sine wave inverter?
    I’m a beginner in electronics, looking for detailed answer.


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  3. #2  
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    A "true sine wave inverter" is just one that has low harmonic distortion. The following is a good article on choosing an uninterruptible power supply.
    http://en.wikipedia.org/wiki/Uninter...Choosing_a_UPS
    The article states
    If the UPS needs to be quiet when running from battery, or will power AC motors (as found in air conditioners and fans) or other equipment requiring a clean sine wave (such as high-end computer power supplies), a UPS that outputs a smooth sine wave is needed. For PCs and other common electronics, a quasi-sine wave waveform[3] is acceptable
    An inverter works basically by switching the d-c voltage and applying it alternately in the forward direction for one half cycle, then the reverse direction for the other half cycle. The result is a square wave. The square wave is then filtered to smooth it out and make it look more like a sine wave. The better the filtering the more it looks like a "true" sine wave.

    Here is another good article
    http://www.kerchner.com/electrical/sinewave.htm


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  4. #3  
    sak
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    Thanks,
    That was quiet good
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