Ac to dc led illumination devices, systems and methods

Details Ac to dc led illumination devices, systems and methods Ac to dc led illumination devices, systems and methods

H - Electricity

05

B

H05B 33/08 (2006.01) F21S 10/02 (2006.01) F21V 23/00 (2006.01) H05B 37/02 (2006.01)

Patent

CA 2760122

Illumination devices (10), systems and methods that convert an alternating current (AC) supply (14) to a direct current (DC) for powering a plurality of light emitting diodes (LEDs) are disclosed. An illumination device (10) comprises a full wave rectifier (12) for converting the AC supply into a direct current (DC). A current limiting diode (CLD) module (16), comprising at least two CLDs coupled in parallel, is coupled in series to an output of the full wave rectifier and a light emitting diode (LED) module (18) comprising a plurality of LEDs is coupled in series between an output of the CLD module (16) and the full wave rectifier (12).

L'invention porte sur des dispositifs (10), des systèmes et des procédés d'éclairage qui convertissent une alimentation en courant alternatif (CA) (14) en un courant continu (CC) pour alimenter une pluralité de diodes électroluminescentes (DEL). Un dispositif d'éclairage (10) comprend un redresseur pleine onde (12) pour convertir l'alimentation CA en un courant continu (CC). Un module à diodes de limitation de courant (CLD) (16) comprenant au moins deux CLD couplées en parallèle est couplé en série à une sortie du redresseur pleine onde; et un module à diodes électroluminescentes (DEL) (18) comprenant une pluralité de DEL est couplé en série entre une sortie du module CLD (16) et le redresseur pleine onde (12).

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