The Workshops in Power Converters for Particle Accelerators (POCPA) are organized every two years and are devoted to the specific field of Power Converters for Particle Accelerators. It aims to group specialists in this field from the particle accelerator laboratories worldwide for a two-day meeting and to organize a true round-table on selected topics, as well as status reports from laboratories. The 6th POCPA Workshop, which will celebrate the 10th anniversary of the first edition, will be hosted by Brazilian Sincrotron Light Laboratoy (LNLS), from September 24th to 26th, 2018. In this meeting, the main topic will be “Efficiency and Integration with Other Systems.