Inverter is a converter that converts DC electric energy (battery, storage battery) into fixed-frequency and constant-voltage or frequency-modulated alternating current (usually 220V, 50Hz sine wave). It consists of inverter bridge, control logic and filter circuit. It is widely used in air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVD, VCD, computers, TVs, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. In foreign countries, because of the high popularity of automobiles, you can use inverters to connect batteries to drive electrical appliances and various tools to work when you go out to work or travel. The car inverter output through the cigarette lighter is 20W, 40W, 80W, 120W to 150W power specifications. The higher power inverter power supply should be connected to the battery through the connecting wire. Various electrical appliances can be used in the car by connecting household appliances to the output of the power converter. The electrical appliances that can be used are: mobile phones, laptops, digital cameras, cameras, lights, electric shavers, CD players, game consoles, handheld computers, power tools, car refrigerators, and various travel, camping, and medical emergency appliances Wait.