I went to Devry for electronics. There is only thing that you can not get around. You can't cheat the power man. Meaning that you can not get more watts out then you put in. you can change volts and amps, but watts will always be the same. For a example if you have a 12vdc inverter that puts out 30amps at 110vac you need to input 275amps 12vdc to get that 30maps 110vac out. 12vdc at 275 amps is 3300 watts. And 110vac at 30amps is 3300watts.