Mosfet gate driving problem

[hamid159]

Hy guyz,,,, .....i'm making an inverter so i'm using SG3524 to drive full bridge mosfet...about 3.2V on each mosfet gate....but the output is zero....i'm using 20n60 mosfet....Please help me :-(

 

[bklash3]

What have you used to measured the gate voltage? The 20n60 mosfet has a gate treshhold voltage of 2 up to 4.5v, if what you have measured is correct, then you need a much larger voltage in the gate to open them, something around 10 volts or more to have them fully enhanced and dissipate the least amount of power.