Hello, I need to control the full bridge inverter with 4 PWM waveform from DSP F28335 board. I have created the simulink model and this results is OK. When i created with the DSP ePWM block, channel 1 and 2 results is same with simulink model. But channel 3 and 4 results are different from simulink model. Can anybody check these two chennals with ePWM block?
Hi Hein Htut,
If you didn't find yet a software solution for this, you can step to the following suggestion.
If the channels 3 and 4 are responsible for controlling the complimentary switches of the first and the second switches. You can provide them by hardware using a buffer for complimentary state and RC circuit for dead time to avoid the short circuit, where the delay time= R*C.
Conference Paper Design and implementation of three-level inverter for grid-t...
Dear Amual and Yacine,
Actually i don't understand well about ePWM block. Now i can create SPWM from full bridge inverter by using CCS and simulink. Your replies really help me. Thanks.
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