Ansteuern einer Lichtquelle

Details

Veröffentlichungs-Nr.

EP2903395

Aktenzeichen

EP14153250

Anmeldetag

30. Januar 2014

Veröffentlichung

27. Dezember 2017

Erteilung

27. Dezember 2017

Rechtsraum

EP

IPC

H05B33/08

Abstract

According to an example embodiment, a driver apparatus for providing a driving current for one or more LEDs is provided. The apparatus comprises a power source portion for providing the driving current, the power source portion arranged to provide, when enabled, the driving current at a first level and a control portion for controlling the provision of the driving current to provide light output at a requested light level, the control portion configured to issue one or more control signals comprising a duty cycle based control signal to cause cyclically enabling and disabling provision of the driving current such that the average driving current corresponds to said requested light level, wherein the control portion is configured to modify characteristics of the driving current, in response to an indication of observed flickering of light in a location served by said one or more LEDs, such that the average driving current continues to correspond to said requested light level.

Anmelder

Firma

Helvar Oy Ab

Land

🇫🇮 Finnland

Fachgebiete