Hi Wilson,
To quickly discuss, I would describe the problem as:
Example: When switching line is A->B, phase C is floating. At the beginning, Va, Vb, Vc = 9.5V (all floating). So If I set RESET_A, RESET_B high and RESET_C low to enable phase A, B, still floating phase C on DRV8312 to do PWM. Right after that, there is a high pulse of I-total which is set as input for COMP1. This make COM1P event occurs and clear all PWM signal to do fault protection.
Regards,
Fitz
To quickly discuss, I would describe the problem as:
Example: When switching line is A->B, phase C is floating. At the beginning, Va, Vb, Vc = 9.5V (all floating). So If I set RESET_A, RESET_B high and RESET_C low to enable phase A, B, still floating phase C on DRV8312 to do PWM. Right after that, there is a high pulse of I-total which is set as input for COMP1. This make COM1P event occurs and clear all PWM signal to do fault protection.
Regards,
Fitz