The expected output voltage of the flyback converter for each shunt reference was calculated using Eq. 1, where I_ref was chosen as the nominal value provided in each component data sheet, V_ref was selected as the typical value for each component, and R₁ and R₂ were constant at 150 kΩ and 23.7 kΩ respectively, both with a 1% tolerance for each shunt reference except the TLVH432. The TLVH432's R₁ and R₂ values were constant at 150 kΩ and 10 kΩ, with a 1% tolerance. Table 4-4 shows the actual flyback output voltages measured for each shunt reference at the three load conditions. Table 4-4 also shows the standby-mode accuracy, which was calculated using Equation 5.

Table 4-4 goes to show that when properly biased, the flyback converters' output accuracy never deviated by more than 1% for any of the shunt references used under any of the three load conditions. Note that the flyback output for the TL431 had a slightly worse accuracy than the other devices, likely due to the larger nominal I_ref value, which deviates largely under different conditions. The ATL431/LI provided the lowest nominal I_ref, which can maintain accuracy in applications that require very high precision.