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Hi Experts,
Background：
EE/HVAC, and customer want to have the RED and FED can appear on both the A-channel outputs, and PWMB complementary with PWMA。
Because customer hope the RED and FED both on the PWMA, the PWMB of the high level will be increased so that the current sampling/calculation takes longer and the V-bus voltage utilization of the entire motor will be higher.
Need:
Current status:
The current competitors' chips can achieve the functions shown above, So customer also want to achieve this with our EPWM module.
And then I check the Dead-band Submodule in the TRM 1749/2583. The path implemented is shown in the figure below：
But I test the EPWMxA and EPWMxB output under the not add dead zone and add dead zone
Not add dead zone, the PWMxA（Blue） and PWMxB （Yellow）
Add dead zone, the PWMxB'（Blue） and PWMxB （Yellow）
So, I double that is this function impossible for our PWM module to achieve? Or is there something wrong with my configuration?
Could you help me to fight against competitors? Give me suggestion? BTW, customer do not hope use the CLB with EPWM, thanks~
