The influence of source impedance in electrical characterization of Solid state lighting sources

Author

Zhao, D. ; Rietveld, G.

Author_Institution

VSL, Dutch Metrol. Inst., Delft, Netherlands

fYear

2012

fDate

1-6 July 2012

Firstpage

300

Lastpage

301

Abstract

This paper investigates the impact of source impedance in electrical characterization of solid state lighting products. A typical current spectrum is given and a model is used to show the significant influence brought about by variable source impedance. In practice, such changes in source impedance are inevitable for measurements done in different locations. A method is proposed to eliminate this impact by inserting a source impedance stabilization network between equipment under test and power supply. It is proved that this method guarantees less than 0.02 % variation in the measurement results which is acceptable for performance evaluation of SSL products.

Keywords

conformance testing; electric impedance; electric variables measurement; light sources; current spectrum; electrical characterization; equipment under test; power supply; solid state lighting sources; source impedance stabilization network; Current measurement; Impedance; Impedance measurement; Metrology; Power measurement; Solid state lighting; Voltage measurement; Power measurement; measurement repeatability; measurement techniques; solid state lighting; source impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6250921

Filename

6250921