Analysis and Construction of Output Capacitance Filter for High Power LLC Resonant Converter

The authors propose capacitive output fllter for resonant inverter type DC/DC converter designed for trolley vehicles. There is designed solution based on real sample, which is further discussed, particularly in terms of their volume. Optimal solution of the printed circuit board (PCB) design requires compliance with certain rules. Their non-compliance leads to local overload, etc.. Here are summarized the results obtained by measurements on the sample.