Other Parts Discussed in Thread: TMS320F28335
Hi,
I am trying to configure the HRPWM of a TMS320F28335 to in the Simulink environment so that S1 and S2 are complementary with a certain dead band.
The switching frequency is 100 kHz and I would like HRPWM1 and HRPWM2 to be delayed 180º, so I have set the Timer Period to 750 and the delay of the PWM2 to 750 as well (I am using the up-down counting mode).
Below you can see the parameters of each PWM:
- PWM1:
- PWM2:
My problem is that when I apply the mentioned delay, the dead time between both PWMs is not the same on both edges of the pulses. The figures below show this difference in the dead times.
I have tried to increase the phase offset value but whenever I put more than 750 the code is not generated properly.
Do you have any idea why is this happening?
Many thanks in advance.
Eneko
