Inverter role ?

Is the DC power ( battery , storage battery ) into alternating current ( typically 220v50HZ sine or square wave ) . Popular speaking , the 4000 watt power inverter is a direct current (DC) into alternating current (AC) devices. It consists of inverter bridge , and filter control logic circuit .Widely used in air conditioners, home theater, electric wheel, power tools , sewing machines , DVD, VCD, computers, televisions, washing machines , range hoods , refrigerators , VCRs, massage , fans, lighting and so on.Briefly, the inverter is a low voltage ( 12 or 24 volts or 48 volts ) power to an electronic device 220 volts alternating current. Because we usually rectified to 220 volt inverter olts AC into DC to use, and the role of the inverter on the contrary, hence the name. We are in a "mobile " era , mobile office, mobile communications, mobile leisure and entertainment. In moving state , people not only need low voltage direct current from a battery or battery supply , but we need more indispensable in our daily environment 220 volts AC inverter to meet us this demand.