In the solar off-grid system, the function of the photovoltaic controller is to store the electricity from the photovoltaic module in the battery after transformation. Besides, it also has the functions of protecting the battery and preventing the battery from overcharging.

​When AC overvoltage occurs in inverter, there are three situations:

​The lifetime of electronic devices will be halved with the increase of ambient temperature by 10 C.

In photovoltaic grid-tied inverters, there is a strange parameter, that is, the input starting voltage of the inverters, which is about 30V higher than the minimum operating voltage.

Photovoltaic modules and inverters should be kept ventilated. Therefore, some inverters in photovoltaic systems will be installed with a shade to reduce the temperature of the equipment.

Pure sine wave inverter is widely used in various fields: computer systems, communication systems, household, aviation, emergency, communication, industrial equipment, satellite communication equipment, military vehicles, medical ambulances, police cars, ships, solar energy and wind power generation

Working Principle of Pure Sine Wave Inverter DC voltage is divided into two circuits, one to supply power to the front IC to produce a KHZ level control signal and one to the front power transistor.

1) Inverter pure sine wave output, suitable for TV sets, refrigerators, induction cookers, electric fans.