DISPOSITIF D'ECLAIRAGE A LED POUR UNE ALIMENTATION EN TENSION ALTERNATIVE

DISPOSITIF D'ECLAIRAGE A LED POUR UNE ALIMENTATION EN TENSION ALTERNATIVE

An LED lighting device for supplying a main voltage by an AC power supply is provided. The device has a rectifier for producing a rectified AC voltage from the main voltage, an LED light unit having multiple of LEDs and a circuit arrangement, and a control device for controlling the circuit arrangem...

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Hauptverfasser: NIEBERLEIN UWE, JORDAN JENS
Format: Patent
Sprache:fre
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ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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creator NIEBERLEIN UWE
JORDAN JENS
description An LED lighting device for supplying a main voltage by an AC power supply is provided. The device has a rectifier for producing a rectified AC voltage from the main voltage, an LED light unit having multiple of LEDs and a circuit arrangement, and a control device for controlling the circuit arrangement. The circuit arrangement switches the LEDs to different circuit states, in which the LED light unit has different forward voltages. The control device controls the circuit arrangement, in such a way that the forward voltage of the LED light unit is adjusted to the voltage profile of the rectified AC voltage. The device also has a modelling device for modelling a modelled voltage profile. The control device controls the circuit states based on the modelled voltage profile. The modelled voltage profile is modelled based on measured variables for describing the real voltage profile of the main voltage.
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subjects ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
title DISPOSITIF D'ECLAIRAGE A LED POUR UNE ALIMENTATION EN TENSION ALTERNATIVE
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