An accurate experimental apparatus for measuring losses in magnetic components

Author

Sridhar, Shri ; Wolf, R.M. ; Odendaal, W.G.

Author_Institution

Philips Res., Briarcliff Manor, NY, USA

Volume

3

fYear

1999

fDate

1999

Firstpage

2129

Abstract

An experimental apparatus has been designed and built to accurately measure losses in magnetic components. The apparatus consists of a highly conductive pedestal on which the device under test (DUT) is mounted. A heat flux sensor placed under the pedestal is used to measure the total heat generated in the DUT. The pedestal along with the heat-flux sensor is placed inside an evacuated chamber to minimize heat loss by convection. Calibration of the apparatus with power resistors showed that it is accurate to within 5% in the power range of interest. A detailed parametric analysis of the factors affecting the accuracy of the apparatus is presented. This apparatus is ideally suited for planar magnetic components

Keywords

calibration; convection; heat measurement; loss measurement; test equipment; calibration; convection; detailed parametric analysis; device under test; heat flux sensor; heat loss minimisation; highly conductive pedestal; losses measurement; magnetic components; planar magnetic components; power resistors; total heat measurement; Copper; Electrical resistance measurement; Frequency measurement; Loss measurement; Magnetic flux; Magnetic losses; Magnetic sensors; Power transformer insulation; Temperature measurement; Thermal management;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.806029

Filename

806029