This document contains 50 code topics related to various aspects of power electronics and electric power systems. The codes cover a wide range of converters including boost, buck-boost, isolated converters, multi-level inverters, solar inverters, and motor drives. Control techniques discussed include maximum power point tracking, active and reactive power control, soft switching, and modulation strategies. Applications mentioned include energy harvesting, renewable energy integration, electric vehicles, LED lighting, and microgrids.