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TMS320F28075: Disable PWMA or PWMB when Deadband set Active high complementary

poyi Li
Prodigy 70 points
Part Number: TMS320F28075
Other Parts Discussed in Thread: C2000WARE

HI : 

    How to turn off the PWMH or L when the deadband module is set to Active high complementary. At present, we set the deadtime to PWM period to turn off the PWMH or L . Is there a better way to complete the task of turning off the PWMH or L ?

Use AQ to turn off PWMA/B, but the PWM AQ module is before the dead band, so the pwm output cannot be turned off.
Use DC event to trigger tripzone event but can't turn off PWMA/B.

  • 0
    TI__Mastermind 21046 points

    Hi Poyi,

    How are you configuring the tripzone event? Have you look at our examples within C2000WARE SDK at epwm_ex1_trip_zone or epwm_ex4_digital_compare? This will show you how you can turn off your PWM signals based on a trip or digital compare event.

    Best,

    Ryan Ma