single phase two level Inverter

IGBT 1 and 2 and inverse of this gate pulse is for IGBT 3 and 4.

pulse generator block in MATLAB. The period is 2e-3 means 20 msec. If you need 60Hz frequency output, then period will be 16.67 msec. The pulse width is in terms of percentage of period. It means that, the gate pulse is generated for this area only. In this case, we set this at 50%, it means 50% period gate pulse is generated and 50% period gate pulse is not generated. The phase delay is set 0 sec, means we are not giving any delay to the gate pulse. If there is any phase delay, it means gate pulse will be generated after this time. For example, if phase delay is 1e-3 then gate pulse will be generated after 10msec.