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How to Build a 12vDC to 220vAC Power Inverter (UPS) uninterruptible power supply Introduction: Power inverter is a device which converts 12 volts to 150 volts of D.C into 220 volt to 110 volt. Power inverter is commonly known as UPS. UPS stands for uninterruptible power supply which is the modified form of inverter. Due to the lack of…