Evaluation of the PFC inductor core losses in dependency on magnetic circuit properties

Abstract

This paper deals with the evaluation of the PFC inductor core losses, while different magnetic core geometry as well as material is being considered. Initially, the most important characteristics and variables of the magnetic properties are given, which are required for proper design and power loss estimation of inductor. Then, comparative analysis related to power loss estimation is provided, while ferrite material in two different shapes is compared with alloy core material. Presented results show how important is proper selection of geometry as well as material of inductor in PFC circuits.