Beleuchtungssystem und Zugehöriges Beleuchtungsmodul

Details

Veröffentlichungs-Nr.

EP3448125

Aktenzeichen

EP18190124

Anmeldetag

22. August 2018

Veröffentlichung

19. Februar 2020

Erteilung

19. Februar 2020

Rechtsraum

EP

IPC

H05B33/08

Abstract

Described herein is a lighting system comprising a power-supply circuit and at least two strings of solid-state light sources. The power-supply circuit comprises two output terminals, wherein the power-supply circuit supplies a regulated voltage ( V out ), wherein the regulated voltage ( V out ) is periodically activated for a first duration and de-activated for a second duration as a function of a dimming signal. A first string (22a) of light sources and a first current regulator (24a) are connected in series between the two output terminals, wherein the first current regulator (24a) is configured for regulating the current flowing through the first string (22a). A second string (22b) of solid-state light sources and a second current regulator (24b) are connected in series between the two output terminals, wherein the second current regulator (24a) is configured for regulating the current flowing through said second string (22b). In particular, the system comprises means (28) configured to activate the current flowing through the first string (22a) when a given time has elapsed since a rising edge of the regulated voltage ( V out ) and to deactivate the current flowing through the first string (22a) simultaneously with a falling edge of the regulated voltage ( V out ).

Anmelder

Firmen

OSRAM GmbH
OSRAM S.P.A. - SOCIETA' RIUNITE OSRAM EDISON CLERICI

Land

🇩🇪 Deutschland

Fachgebiete