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3145_CableErrorsArticle.pdf

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📊 Size: 159 KB

📄 Pages: 2 pages

⬇️ Downloads: 172

Summary

Minimizing cable-induced measurement errors is crucial in high current applications, such as testing high power LED modules and high brightness light-emitting diodes (HBLEDs). Source measurement unit (SMU) instruments, like Keithley's Model 2651A, offer two-wire and four-wire cabling connections. Two-wire mode simplifies cabling but creates measurement errors due to voltage drops across test leads. Four-wire mode compensates for these drops by using separate source and sense leads, but excessive lead resistance and inductance can still cause problems. Minimizing lead resistance and inductance is essential for obtaining accurate measurements and fast rise times, especially when testing with pulsed currents.

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Description

Minimizing cable-induced measurement errors is crucial in high current applications, such as testing high power LED modules and high brightness light-emitting...

Technical Information

File Format: PDF
File Size: 159 KB
Pages: 2
Language: EN
Total Downloads: 172
Last Updated: 7 hours ago

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