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Active and Passive Electronic Components
Volume 22, Issue 2, Pages 121-128

Measurement of Self-Heating Affected Dynamic Error of Precision Wire-Wound Resistors

Technical University of Budapest, Department of Measurement and Information Systems, 9. Muegyetem rkp., Budapest 1111, Hungary

Received 8 January 1999; Accepted 9 March 1999

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents the thermal dynamic model of wire-wound resistors. In order to identify the thermal model an active bridge circuit is discussed. The power step response of the wire-wound resistors can be measured with the resolution of 1 ppm using the detailed circuit. Experimental results are also presented.