Project 2

Interleaving, also called multiphasing, is a technique that is useful for reducing the size of filter components. This is equivalent to a parallel combination of two sets of switches, diodes, and inductors connected to a common filter capacitor and load. The switches are operated 180 degree out of phase, producing inductor currents that are also 180 degree out of phase. The current entering the capacitor and load resistance is the sum of the inductor currents, which has a smaller peak-to-peak variation and a frequency twice as large as individual inductor currents. This results in a smaller peak-to-peak variation in capacitor current than would be achieved with a single buck converter, requiring less
capacitance for the same output ripple voltage.

The observation is found compared with Ch-1. We gave same values of duty, inductor and load and found that for same amount of output voltage ripple, capacitor requirement reduces.