Pure Sine Wave VS Modified Sine Wave Inverters

An Inverter is an electrical appliance which converts DC current from batteries into household AC current.  There are two types of inverters:

 

 

 

Pure Sine Wave Inverters

The power supplied by the national grid is 230V 50Hz AC (or alternating current). The current effectively 'switches direction' 50 times every second. There in no positive or negative like there is with batteries. The waveform is smooth and gradual conforming to what is called a 'sine wave'. Pure Sine Wave inverters such as our Victron range one of are the most efficient and highest quality inverters available. Pure Sine Wave inverters produce little distortion and are able to run even the most sensitive electronic equipment.

Modified Wave Inverters (also called Modified Squarewave)

Designed to roughly emulate a sine wave waveform, modified wave inveters are cheaper than their pure sine wave cousins. They mimic the sine wave shape in large steps. Most simple appliances like power tools, light bulbs, heater elements and electric motors will run with a modified wave inverter...although they will get hotter and use more power. As these inverters don't produce clean sine wave power, they are not recommended for use with electronic equipment like TVs, stereos and computers. Clocks and other timing devices (like digital washing machines) can run either too fast or too slow.


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