The Classification of Inverter Waveform

1. Square wave inverter, output ac voltage waveform is a square wave. The inverter circuit of this kind of inverter is not entirely the same, but the common feature is the circuit is simple and cheap. The disadvantage is that the square wave voltage contains a lot of higher harmonic, with the core inductor or transformer load appliances will generate additional loss, devices such as the TV set will produce interference.

2. Modified sine wave inverter, the output voltage waveform is step wave.The inverter to achieve stair-step output have a variety of different  lines, the difference is very big of the ladder of output waveform number.The advantages of Modified sine wave inverter is the output waveform is a significant improvement for example, wave and reduce high harmonic content. But for some communication devices are still some high-frequency interference.

3. Pure sine wave inverter, the waveform of output AC voltage is sine wave. Sine wave has the advantage of good output waveform, the distortion degree is low, little interference to the communications equipment such as radio, low noise, harmonic content is small (4%) or less, better than the general quality of power grid. As long as the load capacity within the scope of the permit, the equipment can be with any load.