my school finish project is 12VDC / 220VAC 100Watt inverter . I have 6 schematics but I must simulate with pspice or multisim.I couldnt find sg3524 in either of these programs.I tried to make it with 555 but coulnt do. also I must have sinüs at output how can ı design a filter to it? where will I put the filter ? can you tell the steps please.