When independent inverter output waveform is a square wave and modified sine wave , the output current of the inverter , in addition to the fundamental but also have high harmonics , 12v to 220v inverter harmonic current will generate additional losses in the eddy and other inductive loads , resulting in part severe fever , is not conducive to the safety of electrical equipment. Square wave inverter harmonic distortion of around 40% , generally apply only to a resistive load ; modified sine wave inverter harmonic distortion is less than 20% , suitable for the majority of the load ; sine wave inverter harmonics distortion is less than 3% , the waveform quality than the quality of the electricity grid fortunately , 220 volt power inverters can be applied to all of the AC electrical loads.
It refers to the ability of the regulator output voltage of the inverter . PVS independent solar battery terminal voltage in the charging and discharging process volatile, often lead-acid battery terminal voltage fluctuations of up to about 30% of nominal voltage , the inverter which requires a better performance of the regulator , in a relatively wide DC input range guaranteed to work properly. Capacity due to the use of high-frequency inverter and pure sine wave inverter secondary secondary -width-modulated regulator technology , so the relative frequency inverter has a better stability of the output voltage.
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