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1. WO2012059853 - DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT

Publication Number WO/2012/059853
Publication Date 10.05.2012
International Application No. PCT/IB2011/054825
International Filing Date 31.10.2011
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 1/42 2007.01
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
1Details of apparatus for conversion
42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
CPC
H05B 33/08
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
02Details
08Circuit arrangements for operating electroluminescent light sources
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
Applicants
  • KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL]/[NL] (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
  • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH [DE]/[DE] (DE)
  • LOPÉZ, Toni [ES]/[BE] (UsOnly)
  • ELFERICH, Reinhold [DE]/[DE] (UsOnly)
Inventors
  • LOPÉZ, Toni
  • ELFERICH, Reinhold
Agents
  • VAN EEUWIJK, Alexander
Priority Data
10189759.303.11.2010EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT
(FR) DISPOSITIF ET PROCÉDÉ D'ATTAQUE DE CHARGE, EN PARTICULIER UNE UNITÉ DE DEL
Abstract
(EN)
The present invention relates to a driver device (50a-50e)and a corresponding driving method for driving a load (22), in particular an LED unit comprising a power input unit (52) for receiving an input voltage (V20) from an external power supply and for providing a rectified supply voltage(V52), a power conversion unit(54)for converting said supply voltage (V52) to a load current (I54) for powering the load (22),a charge capacitor (56) for storing a charge and powering the load (22) when insufficient energy for powering the load (22) and/or the power conversion unit (54) is drawn from said external power supply (20) at a given time, and a control unit (58) for controlling the charging of said charge capacitor(56) by said supply voltage (V52) to a capacitor voltage (V56) that can be substantially higher than the peak voltage (V52) of said supply voltage and for powering the load(22).
(FR)
L'invention concerne un dispositif d'attaque (50a-50e) et un procédé d'attaque correspondant pour attaquer une charge (22), en particulier une unité de DEL. Ladite unité de DEL comprend une unité d'entrée de courant (52) destinée à recevoir une tension d'entrée (V20) provenant d'une alimentation électrique extérieure et à fournir une tension d'alimentation rectifiée (V52), une unité de conversion d'énergie (54) destinée à convertir la tension d'alimentation (V52) en un courant de charge (I54) pour alimenter la charge (22), un condensateur de charge (56) destiné à stocker une charge et à alimenter ladite charge (22) lorsqu'une énergie insuffisante pour alimenter la charge (22) et/ou l'unité de conversion d'énergie (54) est extraite de alimentation électrique extérieure (20) à un moment donné, et une unité de commande (58) destinée à commander la charge d'un condensateur de charge (56) au moyen de la tension d'alimentation (V52) jusqu'à une tension de condensateur (V56) qui peut être sensiblement supérieure à la tension de crête (V52) de la tension d'alimentation et à alimenter la charge(22).
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