IEEE SSD 2026
Examining the suitability of commercially available LEDs for the nanosecond time domain
Vincent Haude, Alexander Rolapp
Abstract:
This work aims to provide an overview over which influences make light emitting diodes (LEDs) more or less suitable for fast switching applications. It shows which parameters in regards to the LEDs package and other characteristics like wavelength or power cause unfavorable time domain behavior. Here, it is shown that especially the capacitive behavior of the pn-junction hinders fast switching. Based on these considerations a selection guide for choosing the best suited off-the-shelf LEDs for individual fast pulsing applications is provided. Furthermore it is shown why LEDs may be well suited for microsecond time domain switching applications while not being as suited for nanosecond switching applications.
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