A Method and a Three-Source Converter for Medium-Frequency Magnetic Elements Losses Measurement

The article proposes a method of measuring losses in magnetic elements for medium-frequency power electronics, up to 200 kHz. In the method, the measurement of losses is carried out under voltage–current operating conditions of the inductive element similar to practical applications, adjustable in a wide range. A proposed three-source converter (TSC) allows one to generate proper operating conditions for the inductor. The TSC has been simulated and verified under laboratory conditions.