Converting 12 volt DC power to 120 volt AC power is generally a two-step process. You have to first convert the 12 volt DC power to 12 volt AC power, and then run the 12 volt AC through a step up transformer. Commercial power inverters and converters supply 120 volt AC power from a 12 volt DC source such as a car battery or solar panel. Warnings Writer Bio

How Do I Convert 12 Volt DC to 120 Volt AC  - 39