Sine wave inverter is a kind of inverter, which is a power electronic device that converts direct current energy (power battery, battery) into alternating current (generally 220V, 50Hz sine wave). Inverters and ACDC converters are the opposite process.

Because the ACDC converter or power adapter rectifiers 220V AC into direct current to use, and the role of the inverter is the opposite, hence the name.

Sine wave inverter is a power conversion device that converts direct current into alternating current. It completes the inverter task through the power semiconductor device to turn on and off according to a specific law. Modern inverter technology is a science that studies the theory, application and design method of inverter circuit. It is a practical technology based on industrial electronics technology, semiconductor device technology, modern control technology, modern power electronics technology, pulse width modulation technology, semiconductor converter technology and magnetic materials. Therefore, the application of sine wave inverter runs through many fields of society and life.