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How to make a open switch fault using ePWM block(Texas instruments c2000)?

 I'm trying to make open switch fault situation (or the duty cycle of the high side switch to be 0 while not effects the low side one.) . And I'm using a EPWM block from texas instruments c2000 add-on.

I want a high side switch to be opened not the low side one too.
I did
1) continuous software force to control the high side switch(ePWM-A)..... but it's the highest priority signal that makes ePWM-B signal changed.
 
Is there any way I could solve this problem?



 NOTE:-


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Hi,
I understand that you want a high side switch to be opened not the low side one in a 'EPWM' block from Texas Instruments C2000 add-on.
 
When using the 'ePWM' module from the Texas Instruments C2000 add-on in MATLAB/Simulink, you have the ability to independently control the high side and low side switches of a half-bridge. To keep the high side switch open while not affecting the low side switch, you can use the 'Action Qualifier' and 'Dead-Band' modules within the 'ePWM' block to configure the desired behavior.
 
Here are the steps you can follow to configure the 'ePWM' block for an open high side switch without affecting the low side:
  1. Configure 'ePWM Action-Qualifier' Submodule:
  • Set the Action-Qualifier (AQ) submodule to define the desired action for the PWM output A (high side) and B (low side).
  • For the high side (ePWMxA), you can set the action to be taken when the counter is at zero (e.g., do nothing or force low) and what action to take when the counter matches the compare value (e.g., do nothing or force low). This will effectively keep the high side switch open.
  • For the low side (ePWMxB), configure the AQ submodule to toggle or follow the PWM signal as desired.
  1. Dead-Band Module Configuration:

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