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1. WO2016145646 - DIMMING METHOD FOR LED CONVERTER

Publication Number WO/2016/145646
Publication Date 22.09.2016
International Application No. PCT/CN2015/074564
International Filing Date 19.03.2015
IPC
H05B 33/08 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
08Circuit arrangements for operating electroluminescent light sources
H02M 3/335 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
CPC
H05B 45/10
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes [LED]
10Controlling the intensity of the light
H05B 45/37
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes [LED]
30Driver circuits
37Converter circuits
Y02B 20/30
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
20Energy efficient lighting technologies
30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Applicants
  • TRIDONIC GMBH & CO. KG [AT]/[AT]
  • MAO, Egbert [CN]/[CN] (ZW)
  • LONG, Yongchang [CN]/[CN] (ZW)
Inventors
  • MAO, Egbert
  • LONG, Yongchang
Agents
  • BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DIMMING METHOD FOR LED CONVERTER
(FR) PROCÉDÉ DE GRADATION D'INTENSITÉ LUMINEUSE POUR CONVERTISSEUR À LED
Abstract
(EN)
A dimmable LED converter (1) includes at least one terminal for supplying power to at least one LED (22) and a control circuit (44) for controlling a switch of the LED converter (1) in order to modulate the power provided at the at least one terminal. An interface (34) is adapted to receive an analogue dimming signal (11), a dimming signal conversion circuit (38) converts a level of the received analog dimming signal (11) into a parameter of a pulsed signal (39) and an isolated signal transmission means (40) transmits the pulsed signal (39) across an isolation barrier (8) and supplies the transmitted pulsed signal (41) directly or indirectly to the control circuit (44).
(FR)
La présente invention concerne un convertisseur à LED à intensité lumineuse variable (1) qui comprend au moins une borne pour fournir de l'énergie électrique à au moins une LED (22) et un circuit de commande (44) pour commander un commutateur du convertisseur à LED (1) afin de moduler l'énergie électrique fournie à la borne ou aux bornes. Une interface (34) est conçue pour recevoir un signal analogique de gradation d'intensité lumineuse (11), un circuit de conversion de signal de gradation d'intensité lumineuse (38) convertit un niveau du signal analogique de gradation d'intensité lumineuse reçu (11) en un paramètre d'un signal pulsé (39) et un moyen de transmission de signal isolé (40) transmet le signal pulsé (39) à travers une barrière isolante (8) et fournit le signal pulsé transmis (41) directement ou indirectement au circuit de commande (44).
Also published as
GB1712379.5
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