The difference between pure sine wave and sine repair

Inverter waveform is divided into two categories, one is sine wave inverter (ie, pure sine wave inverter), the other is modified sine wave inverter (modified sine wave). Sine wave inverter output is the same as the grid we use every day even better sine wave AC, because it does not exist power of electromagnetic pollution. Modified sine wave (or modified sine wave, quasi sine wave, sine-wave, etc.) of the 8000w high frequnency inverter, the output waveform from the positive maximum to the negative maximum there is a time interval between, improvement effect, but quasi-sine wave is still made polylines, still belongs to the category square wave, continuity is not good, and there is a dead zone. Modified sine wave inverter generally use non-isolated coupling circuit, and pure sine wave inverter with isolated coupling circuit design. Its prices vary a lot.