Whereas all appliances can work off a smooth sine wave, many are known to have problems with the modified sine wave - and especially with a square one. Because these units have to turn completely on and completely off they dissipate the least amount of heat for the power generated, and so smaller semiconductors and heat sinks are needed than if you were trying to generate a real sine wave. The steps are a flat plateau of positive voltage that then drops to zero for a while, then drops again to a flat plateau of negative voltage, back to zero for a while, then returning to the positive voltage and so on. From the image above you can see it looks like a staircase. The other variant is a modified sine wave that is scientifically designed to simulate a pure sine wave so that it will work for most appliances. Generators that produce square wave are also not very efficient because the square wave has a lot of power in the higher harmonic range that cannot be used by many appliances.
#Inverter generator plus#
They just flip the voltage from plus to minus creating a square waveform. These old-fashioned inverters are the cheapest to make, but produce the worst kind of power. The most inexpensive way to convert power from DC to AC is to switch the DC on and off, creating a square wave.
It is complicated to create a perfect sine wave, which is why Honda inverters generators are a premium product. Cheaper units produce irregular sine waves and therefore inefficient and erratic power.
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