12v power inverter Modified sine wave inverter Precautions
Modified sine wave inverter should avoid "inductive load." In layman's terms, that the application of electromagnetic induction principle of making high-power electrical products, 2000w inverter charger such as motors, compressors, relays, fluorescent lights, and so on. These products need when starting a ratio to maintain normal operation (about 5-7 times) required a much larger current starting current. For example, a refrigerator power consumption during normal operation of about 150 watts, its starting power up to 1000 watts or more. In addition, due to the inductive load in an instant power or disconnect the power supply, will produce back-EMF voltage, peak voltage is much larger than this car inverter can withstand voltage, can easily cause car inverter instantaneous overload, the life impact of the inverter.
When you use an ordinary multimeter to measure quasi-sine wave (modified sine wave) car inverter AC output voltage 20V display playful than 220 or so.
Cause problems when running sophisticated industrial inverters equipment, can also cause high-frequency interference to communications equipment.