TIDUF63 December 2023
The inductor plays an important role in system efficiency, current ripple, and overall size. The inductance value is calculated based on the input voltage, output voltage, and worst-case ripple. The inductance value of a totem-pole DC/AC can be calculated with Equation 13:
where
Worst-case current ripple is when the duty cycle is equal to 50%
DC link capacitor voltage ripple frequency is double the line frequency. The required DC link capacitance can be calculated as shown in Equation 15:
where