Lighting device and corresponding method

    公开(公告)号:US10356876B2

    公开(公告)日:2019-07-16

    申请号:US15688931

    申请日:2017-08-29

    Applicant: OSRAM GmbH

    Abstract: According to the present disclosure, a lighting device provides: an elongate support element, a plurality of lighting units distributed along the length of said support element, each of said units including: a set of electrically powered light radiation sources, a driver supplying said set of light radiation sources with a supply current having an intensity which is a function of an impedance value sensed at a current control input of driver. At least one of said lighting units includes a mounting seat for a lighting adjustment impedance, said seat having an electrical connection to the current control input of at least one driver, so that the intensity of the current supplied by driver to a respective set of light radiation sources is a function of the impedance value of a lighting adjustment impedance arranged at said seat.

    Printed circuit board, corresponding lighting module, lighting system and method for implementing lighting modules

    公开(公告)号:US10356862B2

    公开(公告)日:2019-07-16

    申请号:US15837024

    申请日:2017-12-11

    Applicant: OSRAM GmbH

    Abstract: The printed circuit board includes metallic zones including: a first, second and third positive terminal, a first and second negative terminal, wherein the second negative terminal is connected to the first negative terminal, and electric contacts for the mounting of one or more LEDs and electric traces such that the LEDs are connected in series forming a LED string. The printed circuit board comprises selection means implemented with electric traces and metallic contacts adapted to be short-circuited via links in order to permit all of the following connections: a connection of the LED string between the first and third positive terminal, a connection of the LED string between the first positive terminal and the first negative terminal, a connection of the LED string between the second and third positive terminal, and a connection of the LED string between the second positive terminal and the first negative terminal.

    Lighting system, related electronic converter and method of designing a lighting system

    公开(公告)号:US10172198B2

    公开(公告)日:2019-01-01

    申请号:US15921785

    申请日:2018-03-15

    Applicant: OSRAM GmbH

    Abstract: A lighting system includes an electronic converter, a lighting module and a switching stage. The electronic converter includes a transformer, a rectifier circuit and an output filter circuit. A capacitance is connected between the primary winding and the secondary winding. The lighting module includes a chain of LEDs and a current regulator, wherein the chain of LEDs is mounted onto a substrate of a metallic material, so that a parasitic capacitance is present between the lighting module and the substrate of a metallic material.The switching stage includes a field-effect transistor interposed in the negative line which connects the lighting module to the electronic converter, and a control unit configured to drive the gate terminal of the transistor as a function of a dimming signal.The switching stage includes a diode connected to negative output terminal of the switching stage and to positive output terminal of the switching stage.

    LIGHTING SYSTEM, RELATED ELECTRONIC CONVERTER AND METHOD OF DESIGNING A LIGHTING SYSTEM

    公开(公告)号:US20180270924A1

    公开(公告)日:2018-09-20

    申请号:US15921785

    申请日:2018-03-15

    Applicant: OSRAM GmbH

    CPC classification number: H05B33/0815 F21S4/10 H05B33/089 H05B37/02

    Abstract: A lighting system includes an electronic converter, a lighting module and a switching stage. The electronic converter includes a transformer, a rectifier circuit and an output filter circuit. A capacitance is connected between the primary winding and the secondary winding. The lighting module includes a chain of LEDs and a current regulator, wherein the chain of LEDs is mounted onto a substrate of a metallic material, so that a parasitic capacitance is present between the lighting module and the substrate of a metallic material.The switching stage includes a field-effect transistor interposed in the negative line which connects the lighting module to the electronic converter, and a control unit configured to drive the gate terminal of the transistor as a function of a dimming signal.The switching stage includes a diode connected to negative output terminal of the switching stage and to positive output terminal of the switching stage.

    CONNECTOR FOR LIGHTING DEVICES AND CORRESPONDING METHOD
    18.
    发明申请
    CONNECTOR FOR LIGHTING DEVICES AND CORRESPONDING METHOD 审中-公开
    照明设备连接器及相应方法

    公开(公告)号:US20160334090A1

    公开(公告)日:2016-11-17

    申请号:US15151522

    申请日:2016-05-11

    Applicant: OSRAM GmbH

    Abstract: A connector for connecting mutually facing ends of elongate lighting devices is provided. The connector includes a connector body having opposed end regions coupleable to the facing ends of said lighting devices. The connector body includes a light emission region between the opposed end regions.

    Abstract translation: 提供了用于连接细长照明装置的相互相对的端部的连接器。 连接器包括具有可与所述照明装置的相对端连接的相对端区的连接器主体。 连接器主体包括在相对的端部区域之间的发光区域。

Patent Agency Ranking