What is a device that converts DC to AC power called?

A device that converts direct current (DC) to alternating current (AC) is known as an inverter. Inverters play a crucial role in various applications, particularly in renewable energy systems like solar power setups, where the electricity generated by solar panels is typically in DC form. To utilize this energy in homes or feed it into the grid, it must be converted to AC, which is the standard form of electrical power used in households and businesses.

Inverters not only convert DC to AC but also perform additional functions such as regulating voltage and maintaining frequency, which are essential for ensuring that the output matches the requirements of electrical systems. This conversion enables the integration of renewable energy sources into the existing power grid and allows for the use of stored energy from batteries.

The other devices mentioned serve different functions: a rectifier converts AC to DC, a transformer is used to change the voltage level of AC, and a charger is designed to restore energy to a battery by supplying it with DC power. Each device has a unique role in electrical systems, highlighting the importance of understanding their specific functions.