公开(公告)号：EP2849538B1

公开(公告)日：2018-11-14

申请号：EP14179996.5

申请日：2014-08-06

Applicant: Tridonic GmbH & Co KG

Inventor： Auer, Hans ,  Vonach, Christoph ,  Lampert, Peter ,  Lochmann, Frank

IPC: H05B33/08 ,  H05B41/24

CPC classification number: H05B41/28 ,  H02M1/4225 ,  H02M2001/007 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0842 ,  Y02B70/126

公开(公告)号：EP2608637B1

公开(公告)日：2018-11-14

申请号：EP11290587.2

申请日：2011-12-21

Applicant: Silergy Corp.

Inventor： Mercier, Frederic ,  Derrien, David ,  Perquis, Thibault

IPC: H05B33/08

CPC classification number: H05B37/02 ,  H02M3/33507 ,  H05B33/0809

Abstract: A bleeder arrangement for a phase-cut circuit for a high-Impedance load and having a leading-edge phase-cut device is disclosed, the bleeder arrangement comprising: a controllable current sink adapted to sink a latching current through the leading-edge phase-cut device, and a controller for controlling the controllable current sink, wherein the controller is configured to disable the current sink after the leading-edge phase phase-cut device has latched in at least two stages. A controller for use in such an arrangement is also disclosed, as is a method of controller such a bleeder arrangement.

公开(公告)号：EP3397028A1

公开(公告)日：2018-10-31

申请号：EP18169056.1

申请日：2018-04-24

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

Inventor： PENGO, Ermes ,  STIVAL, Davide

IPC: H05B33/08

CPC classification number: H05B33/0809

Abstract: A lighting system comprising a plurality of electronic converters (10) and a plurality of lighting modules (20) is described. The lighting system also comprises switching means (40) configured for connecting the lighting modules (20) to the electronic converters (10).
In particular, the switching means (40) are configured to allow at least two switching states. In the first switching state, at least one lighting module (20) is connected to each electronic converter (10). Instead, in the second switching state, at least one electronic converter (10) is disconnected, and the lighting module(s) (20) connected during the first switching state to the electronic converter (10) are connected to the other electronic converters (10).
The lighting system also comprises a control circuit (42) configured to detect one or more signals indicative of the supply powers required by the lighting modules (20), and to drive the switching of the switching means (40) to activate the first or the second switching state according to the supply powers required by the lighting modules (20).

公开(公告)号：EP3397026A1

公开(公告)日：2018-10-31

申请号：EP18167036.5

申请日：2018-04-12

Applicant: Self Electronics Co., Ltd. ,  SELF ELECTRONICS Germany GmbH ,  Lin, Wanjiong

Inventor： ZOU, Xuejun ,  ZHOU, Xiaoyong

IPC: H05B33/08 ,  H02H3/18 ,  H02H11/00

CPC classification number: H05B33/0809 ,  H02H3/18 ,  H02H11/003 ,  H02M7/44 ,  H02M7/53871 ,  H05B33/0845 ,  H05B33/0851 ,  H05B33/0854 ,  H05B33/0884 ,  H05B33/0887 ,  H05B33/089 ,  H05B37/0209 ,  H05B37/0227 ,  H05B37/0272

Abstract: A DC power supply for preventing output from being misconnected to a power supply and its LED lamp and control system, comprise a DC power supply and a anti-misconnection module. The DC power supply comprises a positive output terminal and a negative output terminal. The anti-misconnection module comprises a positive access terminal and a negative access terminal which are electrically connected to the positive and negative output terminals of the DC power supply respectively, a NMOS transistor controlling on-off of the negative access terminal, a load access unit performing a turn-on operation of the NMOS transistor, a forward-blocking unit performing a turn-off operation of the NMOS transistor, and a backward access unit performing a turn-off operation of the NMOS transistor. The present invention prevents the DC power supply from being damaged even if the positive access terminal and the negative access terminal of the DC power supply are mis-connected to the external power supply, such as the electric supply or the dry battery. As long as the external power supply is removed and the normal load is connected, such as LED lamps, the DC power supply of the present invention can work normally, so that it can not only improve the reliability of power supply products, but also can reduce the corresponding maintenance workload.

公开(公告)号：EP3393210A1

公开(公告)日：2018-10-24

申请号：EP18168205.5

申请日：2018-04-19

Applicant: Zumtobel Lighting GmbH

Inventor： Gajdos, David ,  Steffens, Thomas

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  H05B33/0845

Abstract: Eine Schaltungsanordnung zum Betreiben von Leuchtmitteln (100) weist eine steuerbare Konstantstromquelle (50) auf, welche abhängig von einem an einen Steueranschluss (53) der Konstantstromquelle (50) angeschlossenen Widerstand einen zum Betreiben der Leuchtmittel (100) vorgesehen Strom (I LED ) einstellt, wobei die Schaltungsanordnung weiterhin einen Mikrocontroller (10) mit Digital-zu-Analog-Funktionalität aufweist und der Steueranschluss (53) der Konstantstromquelle (50) an einen DAC-Anschluss (11) des Mikrocontrollers (10) angeschlossen ist, derart, dass interne Spannungsteilerkomponenten des Mikrocontrollers (10) einen internen Widerstand (20) bilden, der Bestandteil des zum Steuern der Konstantstromquelle (50) genutzten Widerstands ist.

公开(公告)号：EP3370481A1

公开(公告)日：2018-09-05

申请号：EP18157303.1

申请日：2018-02-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kido, Hiroshi ,  Ido, Shigeru ,  Kataoka, Hisao ,  Toda, Naohiro

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0845 ,  H05B33/0809 ,  H05B33/0857 ,  H05B33/086 ,  H05B37/0209 ,  H05B37/029

Abstract: A lighting device (100) is provided that includes a lighting controller (110) that controls a light emitter (20) that emits illumination light. The lighting controller (110) includes a first filter (130) that converts a first signal waveform (125) that is defined by a first piecewise linear curve and whose intensity repeatedly increases and decreases into a signal waveform having a smooth rounded curve, and outputs the converted signal waveform as a first output waveform (131). The lighting controller (110) causes the light emitter (20) to repeatedly increase and decrease the intensity of the illumination light in accordance with the first output waveform (131).

公开(公告)号：EP1289341B1

公开(公告)日：2018-08-29

申请号：EP02016583.3

申请日：2002-07-25

Applicant: HELLA GmbH & Co. KGaA

Inventor： Brune, Joachim ,  Vormbaum, Frank ,  Schulze Gronover, Ludwig ,  Mehlhorn, Patrick ,  Schulte, Achim

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  H05B33/0803

公开(公告)号：EP3358926A1

公开(公告)日：2018-08-08

申请号：EP18153892.7

申请日：2018-01-29

Applicant: Valeo Vision

Inventor： BADIA, Olivier

IPC: H05K9/00 ,  H05K5/00

CPC classification number: H05B33/0842 ,  H01L23/552 ,  H05B33/0809 ,  H05B37/02 ,  H05K1/0218 ,  H05K5/006 ,  H05K9/0039 ,  H05K9/0084

Abstract: L'invention concerne un dispositif de pilotage (10) de l'alimentation électrique pour une source lumineuse à semi-conducteur pour un module lumineux, le dispositif de pilotage (10) comportant :
- une carte à circuit imprimé (3) comportant au moins un composant électronique (3B) pour le pilotage de l'alimentation électrique ;
- un boîtier (5) adapté pour accueillir ladite carte à circuit imprimé (3) ;
- un capot de protection (7) pour fermer ledit boîtier (5) ;
- une première ceinture de masse (3C) disposée sur une première face (3A') de ladite carte à circuit imprimé (3) et une deuxième ceinture de masse disposée sur une deuxième face de ladite carte à circuit imprimé (3) opposée à la première face (3A') ;
le boitier (5) comportant des premiers points de contact (5A") avec la deuxième ceinture de masse et ledit capot de protection (7) comportant des deuxièmes points de contact avec ladite première ceinture de masse (3C), ledit boitier (5) et/ou ledit capot de protection (7) comprenant au moins un muret de protection (5B') pour tout ou partie desdits premiers (5A") et deuxièmes points de contact.

公开(公告)号：EP2135487B1

公开(公告)日：2018-08-01

申请号：EP08743813.1

申请日：2008-03-12

Applicant: Philips Lighting Holding B.V.

Inventor： MELANSON, John, L.

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H03K17/18 ,  H03K17/567 ,  H03K17/687 ,  H03K17/6872 ,  H03K17/74 ,  H05B33/0809 ,  H05B33/0818 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/0887 ,  Y02B20/346 ,  Y02B20/347 ,  Y10S315/04 ,  Y10S323/905

Abstract: A method and system allow a lighting device having light sources with multiple color temperatures to vary a color temperature of the lighting device in response to changing dimming levels. The light sources are non-incandescent light sources, such as light emitting diodes and/or gas-discharge lights. A dimmer circuit provides a dimming signal that indicates a selected dimming level. The lighting device includes a light source driver and a light source driver controller that cooperate to vary drive currents to the light sources in response to the selected dimming level. By varying the drive currents in different relative amounts, the color temperature of the lighting device changes in response to dimming level changes. In at least one embodiment, changes in the color temperature of the lighting device in response to the dimming level changes simulates the color temperature changes of an incandescent light source.

公开(公告)号：EP3072361B1

公开(公告)日：2018-07-18

申请号：EP14825094.7

申请日：2014-11-18

Applicant: Tridonic GmbH & Co. KG

Inventor： JERMYN, Philip

IPC: H02M1/42 ,  H05B33/08 ,  H02M1/14

CPC classification number: H05B33/0809 ,  H02M1/14 ,  H02M1/42 ,  H05B33/083 ,  Y02B70/12

Abstract: The invention proposes a driver module for driving LEDs, wherein the driver module comprises: - a rectifier (D1) for generating a supply voltage by rectifying an input AC voltage (Vin), - a load path with nodes (B, C) for connecting an LED string (10) comprising one or a plurality of LEDs (D), - a current source (IS1) coupled with the load path for generating a preferably constant current for the load path, and - a capacitive unit comprising at least two capacitors (C1, C2) for storing electrical energy from the rectifier (D1) during a charging phase and for providing electrical energy to the load path during a discharging phase, wherein the capacitive arrangement (11, 11', 11'') is configured such that the two capacitors (C1, C2 ) are in a parallel arrangement (11) in the charging phase and in a serial arrangement (11'') in the discharging phase.