November 2019
Intermediate to advanced
356 pages
11h 35m
German
Content preview from LEGO®-Modelle beleuchten
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6Elektronik-Grundlagen
6.1LED-Grundlagen
Eine Leuchtdiode (kurz LED von englisch Light-emitting Diode) ist ein lichtemittierendes Halbleiter-Bauelement, dessen elektrische Eigenschaften denen einer Diode entsprechen. Fließt durch die Diode elektrischer Strom in Durchlassrichtung, so strahlt sie Licht, Infrarotstrahlung oder auch Ultraviolettstrahlung aus. Die Wellenlänge des Lichts ist vom Halbleitermaterial und der Dotierung abhängig. Die Farbe des Lichts kann zudem auch von Leuchtstoffen, die über dem Halbleiter aufgebracht werden, abhängig sein (siehe Abb. 6-1).
Abb. 6-1 LED-Schaltzeichen
Eine LED besitzt immer zwei Anschlüsse – einen positiven, ...
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