CCS/UCD3138PFCEVM-026: Could PID coefficients be modified in program?

if you want to modify the coefficients, go to pmbus_topology.h, modify the coefficients in line 199, 202, 205 and 208:

// KP_COEF_1 KP_COEF_0
#define FILTERKPCOEF0_DEFAULT {500, 1778}

// KI_COEF_1 KI_COEF_0
#define FILTERKICOEF0_DEFAULT {100, 20}

// KD_COEF_1 KD_COEF_0
#define FILTERKDCOEF0_DEFAULT {1500, -64}

// researved KD_ALPHA_1 researved KD_ALPHA_0
#define FILTERKDALPHA_DEFAULT {0, 250, 0, 201}

the COEF-0 are used for low line input voltage, the COEF_1 are used for high line input voltage