1. Inverter
The inverter is to convert DC power (battery, storage battery) into AC power (generally 220V,50Hz sine wave). It consists of inverter bridge, control logic and filter circuit. Widely used in air conditioning, home theater, electric grinding wheel, power tools, sewing machines, DVD, VCD, computers, TV, washing machines, range hoods, refrigerators, VCRs, massagers, fans, lighting and so on. In foreign countries, due to the high popularity of automobiles, you can use the inverter to connect the battery to drive electrical appliances and various tools. The car inverter output through the cigarette lighter is 20W, 40W, 80W, 120W to 150W power specifications. Larger power inverters should be connected to the battery through the connecting cable. By connecting household appliances to the output of the power converter, you can use all kinds of electrical appliances in the car. The electrical appliances that can be used are: cell phones, notebook computers, digital cameras, video cameras, lights, electric shavers, CD players, game consoles, PDAs, power tools, car refrigerators, and a variety of travel, camping, medical emergency appliances, and so on.
2, inverter
Inverter is the application of frequency conversion technology and microelectronics technology, by changing the frequency of the motor power supply to change the way to control the AC motor power control equipment. Frequency converter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit microprocessor unit and other components. Frequency converter rely on the internal IGBT on and off to adjust the output power supply voltage and frequency, according to the actual needs of the motor to provide the required power supply voltage, and thus achieve the purpose of energy saving, speed regulation, in addition, the frequency converter also has a lot of protection functions, such as over-current, over-voltage, overload protection and so on. With the continuous improvement of industrial automation, frequency converter has been widely used.