A device that converts DC (Direct Current) to AC (Alternating Current) is called an **inverter**. Inverters are commonly used in applications such as solar power systems, where DC from solar panels is converted to AC for use in homes or businesses, and in uninterruptible power supplies (UPS) for providing backup power.
Inverters come in various designs depending on their intended use, but their primary function remains the same: to convert DC into AC with adjustable voltage, frequency, and waveform depending on the specific need.