First we need to look at the circuit of the inverter. Ordinary inverters generally use undervoltage protection circuits made of TL494, KA7500 or LM324. There are two sampling resistors at the input end of the voltage comparator of the IC to detect the input voltage. Adjusting these two resistors can change the voltage dividing point. , thereby changing the value of undervoltage protection.
The inverter converts 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 conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, computers, TVs, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. In foreign countries, due to the high popularity of automobiles, you can use an inverter to connect the battery to drive electrical appliances and various tools 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. Higher power inverter power supplies need to be connected to the battery through connecting wires. By connecting household appliances to the output of the power converter, various appliances can be used in the car. Appliances that can be used include: mobile phones, laptop computers, 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.