FILAMENT EMULATION CIRCUIT FOR A LIGHT EMITTING DIODE TUBE LAMP

Provided is a filament emulation circuit (7) located on one end of a retrofittable tubular light emitting diode lamp (2) for operating with a fluorescent ballast (1) comprising a first power connection and a second power connection for receiving an output power of the fluorescent ballast (1), a firs...

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Bibliographische Detailangaben
Hauptverfasser:	WENDT, Matthias, RADERMACHER, Harald, Josef, Günther, ACKERMANN, Bernd
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	Provided is a filament emulation circuit (7) located on one end of a retrofittable tubular light emitting diode lamp (2) for operating with a fluorescent ballast (1) comprising a first power connection and a second power connection for receiving an output power of the fluorescent ballast (1), a first switching element (3) arranged to prevent a current to flow between the first power connection and the second power connection when 5 the first switching element (3) is set in a non-conductive state, a first energy storage device (10) coupled between the first power connection and the second power connection, a first controller for controlling the first switching element (3), wherein the first controller is arranged for receiving power from the first energy storage device (10).