Conducted emission simulation and measurement of interleaved DC-DC converters

Switching-Mode Power Supplies (SMPS) are often used to power on-board satellite payloads due their good conversion efficiency. However, they emit radiated and conducted noise, which can disturb the operation of other payloads. The current ripple sum supplies will appear on bus. There many methods reduce this summarized one them is interleave on-switching times converters. This cancellation method decrease noise component switching frequency its upper harmonics. In article we going demonstrate effects distributed interleaving with a measurement platform consisting two Pulse Width Modulation (PWM) controlled Buck controllers.