New core loss measurement method with partial cancellation concept

摘要: As an essential part in a power converter, the magnetic cores and their design play important role achieving high efficiency density. Accurate measurement of core loss is to optimization. To improve accuracy, previous methods were proposed cancel reactive voltage testing by cancellation capacitor or inductor. However, value component critical, small variation may induce big error, so extra effort required fine-tune value. This paper presents new method with partial concept that enables accurate at frequency without requirement