500W MosFet Power Inverter from 12V to 110V/220V This cir cuit will provide a ver y stable "Squa re W ave" Output V oltage. Frequency of operation is determined by a pot and is normally set to ! #. Various "o$ the shelf" transformers can be used. Or %ustom wind your own FO& '(ST &(S)*TS. +dditional ,osFets can be paralleled for higher power. -t is recommended to ave a "Fuse" in the ower *ine and to always have a "*oad connected"/ while power is being applied. The Fuse should be rated at 01 volts and should be apro2imately 3! +mps per 3!! watts of output. The ower leads must be heavy enough wire to handle this igh %urrent 4raw5 +ppropriate eat Sin6s Should be used on the &F7!8! Fets. These Fets are rated at 7! +mps and ! Volts. 99 Other types of ,osfets can be substituted if you wish. The * T3!30 o$ers bett er drive that th e *,07:/ but its your choice. The o wer transformer must be capable of handling the chosen wattage output. +lso/ +ppropriate eat Sin6s are 8ecessary on the ,os;Fets. )sing a rebuilt ,icrowave transformer as shown below/ it should handle about 7!! watts ,a2imum. -t requires about 3: turn %enter;Tapped on the primary. T o handle 7!! watts would requir e using a 7 + W< wire. retty eavy S tu$/ but so is the current draw at that power.