dear au, yes i have separated the ic wires to the battery connection and the heavy wires from mosfet to the ground and the to battery....but the problem is the ic need to be connected to the mosfet which acts as a wave generator to switch on and off for the mosfet....then ground of the mosfet also separated from the ic ground but the drain of the mosfet are using pcb to heavy wires then to transformer... i will take attach the pic along for you to see.....and 1 more prob which could not be solved...whcih the the waveform....i still cant get the desired waveform from cd 4001 and cd 4047.... i tried the cd 4047 output pin osc, pin Q and pin Q' all is the same in the datasheet...bt when connected to the cd 4001 it will become a square wave....which each of the output from the cd 4001 will have a phase different only not inverted waveform....when add together it will superimpose but not generating modified sine wave..... :'( :'( :'( at 1st, can generated the desired current and voltage but after awhile it will burn the CD4047 ic ...need help thanks