hello all...i did construct 3-level diode clamped inverter on Pspice and got the simulation for both v and i and got the thd...now i need to apply vpulse and then pwm...when i entered a vpulse i got the half voltage modualted but the full voltage is appearing to be zero...i think either i dont know where to locate the modulator or the parameters of the vpulse is not ok...knowing i am using mosfet in my cct and the vdc=200 volt....i am in need for a real guidance and top urgent honestly....my email is : time_search@yahoo.com..........thanx alot in advance