I was trying a single phase full bridge inverter for 40khz frequency so i used igbt module CM150DU12NF than i had used polysterene capacitor .01uF, 630V for series type commutation with 100 ohms load (value has been selected by considering the charging time of capacitor so that pair of Igbt is turned OFF before the next pair of Igbt is triggered ) and then connected the 100 ohms resistor with inverter in series to dc supply to avoid shorting of dc supply if accidentally the pair of Igbt of same module is ON, to work as a inverter pair of Igbt of different modules is trigerred alternately with use of toggle IC 7473 and power driving IC LN293D.Now the problem faced by me is that i am receiving the 40khz freq at the gate and receiving only positive pulses of 60V at 80khz at series resistor this shows that pair of diff module Igbts are perfectly turned ON & OFF alternately (as whenever current is drawn from the dc supply voltage is measured across the resistor) but now i am not receiving any voltage across the load resistor plz help me
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