Most power inverters are designed to convert 12-volt, 24-volt, or 48-volt DC to 120-volt AC. These inverters are commonly used in recreation vehicles and solar power systems. Special inverters can be connected together to produce 220-volts. This process is called stacking.
[pdf] A 220 volt power inverter converts direct current to conventional alternating current. When you do not have normal power supply, a 220 volt inverter can be used to run your electronic equipment. So your important jobs do not hinder in the absence of normal power supply.
[pdf] How to make 3.7 v to 220v simple inverter | Converting Low Voltage to High Voltage In this informative video, we'll guide you through the process of creating a simple yet effective inverter that can convert a low voltage of 3.7 volts into a powerful 220-volt output.
[pdf]