6533b872fe1ef96bd12d2fd5
RESEARCH PRODUCT
A Measurement System for Power Inductors in Non-Linear Operating Conditions
Marco VentimigliaGianpaolo VitaleD. ScireGiuseppe Lullosubject
Computer scienceNonlinear magnetics inductance measurement power inductors saturation magnetization DC-DC power convertersSystem of measurementpower inductorsConvertersInductorSettore ING-INF/01 - ElettronicaTemperature measurementPower (physics)InductanceNonlinear systemMagnetizationHardware_GENERALinductance measurementDC-DC power convertersElectronic engineeringnonlinear magneticssaturation magnetizationdescription
The exploitation of power inductors in switching converters outside the linear region requires detailed information on the magnetization curve that often is not included among those usually available on their datasheets. This paper proposes an automatic system in which the inductor is characterized in real operating conditions taking into account also the core temperature. It is based on a switching converter suitably controlled by a virtual instrument. The system was tested by retrieving the inductance vs current curves of two commercial inductors for core temperatures up to 105°C, showing the different behaviors of the magnetization curves. Results are coherent with data given by manufacturers and provide a complete characterization of the inductors.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-11-13 | 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE) |