hi
hhh ok thanks alexan_a & qayyoum
this cct in "proteus"
now i need pulse to the two
IRG4BC10KD
because i dont know how to use pulse in proteus
hint : i need any pulse tool
this cct
View attachment 65313[/QUOTE
hello,you should feed this circuit with micro controller like pic 628 available in component mode that have a default +5v rail but you have to connect the gates through 470 ohm resistors and also have to provide the ground to the gates through 22k resistors.having been completed,play the same,you'll get the pulse on oscilloscope as well as on dc meter .