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    DIMMING DEVICE
    1.
    发明公开
    DIMMING DEVICE 审中-公开

    公开(公告)号：EP3319401A4

    公开(公告)日：2018-06-13

    申请号：EP16821017

    申请日：2016-06-28

    Applicant: PANASONIC IP MAN CO LTD

    Inventor： GOTOU KIYOSI ,  MIYAKE TOMOHIRO ,  NIIKURA EIICHIROU ,  MIYAMOTO KENGO

    IPC: H05B37/02 ,  G05F1/56 ,  H05B33/08

    CPC classification number: G05F1/56 ,  H05B33/0884 ,  H05B37/02 ,  Y02B20/46

    Abstract: A dimming device is provided which is compatible with an increased number of types of illumination loads. The dimming device includes a pair of input terminals, a bidirectional switch, an inputter, a power supply (5), a controller, and a current limiter (53). The power supply (5) is electrically connected between the pair of input terminals and is supplied with electric power from an AC power supply to generate control electric power. The controller is supplied with the control electric power from the power supply (5) to operate. The controller is configured to control the bidirectional switch in accordance with a dimming level. The current limiter (53) stops generation of the control electric power by the power supply (5) when a current larger than or equal to a specified value flows from the AC power supply through the power supply (5).

    OPERATING DEVICE FOR AN ILLUMINANT
    5.
    发明公开
    OPERATING DEVICE FOR AN ILLUMINANT 审中-公开
    操作设备的照明

    公开(公告)号：EP3262901A1

    公开(公告)日：2018-01-03

    申请号：EP15882940.8

    申请日：2015-02-26

    Applicant: Tridonic GmbH & Co. KG

    Inventor： LIN, Quentin

    IPC: H05B37/02

    CPC classification number: H05B37/03 ,  H05B33/0815 ,  H05B33/0884 ,  Y02B20/341

    Abstract: An operating device for an illuminant comprises input terminals (L, N) for being supplied with an AC voltage, output terminals (X1, X2) and a driving circuitry (1, 2) for driving the illuminant (3), when connected to the output terminals (X1, X2). In order to compensate an excessive high voltage between the output terminals (X1, X2) and the protective earth (PE) due to voltage surges at input terminals (L, N), bypass means (4) are provided to bypass a current from one of the output terminals (X1, X2) to protective earth (PE) and/or a neutral terminal (N) of the input terminals (L, N), wherein the bypass means (4) comprise at least one capacitor (C).

    METHOD FOR CONTROLLING A TUNABLE WHITE FIXTURE USING MULTIPLE HANDLES
    6.
    发明公开
    METHOD FOR CONTROLLING A TUNABLE WHITE FIXTURE USING MULTIPLE HANDLES 审中-公开
    用多个手柄控制可调白色夹具的方法

    公开(公告)号：EP3247175A1

    公开(公告)日：2017-11-22

    申请号：EP17171319.1

    申请日：2017-05-16

    Applicant: ABL IP Holding LLC

    Inventor： Ciccarelli, David ,  Weiss, Daniel Aaron ,  Suttles, Benjamin Marshall

    IPC: H05B33/08

    CPC classification number: H05B33/0857 ,  H05B33/0845 ,  H05B33/0863 ,  H05B33/0884

    Abstract: A system allows a light fixture to have a wider range of color temperatures (CCT) while limiting the warmest temperature reached at full intensity. The CCT of the light output may be controlled independently of intensity across a certain range of CCT and dependent on intensity across another range. In an implementation, both intensity and CCT may be adjusted from a single handle, where the interface positions may be divided into multiple zones. In another implementation, intensity may be adjusted from a first handle, while CCT may be adjusted from a second handle. The CCT of the light output may be limited to cooler levels when the intensity is higher, and/or the intensity of the light may be limited to lower levels when the CCT is warmer.

    Abstract translation: 系统允许灯具具有更宽范围的色温（CCT），同时限制达到最大温度的最高温度。 光输出的CCT可以独立于CCT的一定范围内的强度来控制，并且取决于另一范围的强度。 在一个实现中，强度和CCT都可以从单个手柄调整，其中接口位置可以被划分成多个区域。 在另一个实现中，可以从第一句柄调整强度，而可以从第二句柄调整CCT。 当强度较高时，光输出的CCT可以被限制到较冷的水平，并且/或者当CCT较暖时光的强度可以被限制到较低的水平。

    GROUND FAULT DETECTION CIRCUIT, ABNORMALITY DETECTION CIRCUIT, LIGHT EMITTING DEVICE, VEHICLE
    8.
    发明公开
    GROUND FAULT DETECTION CIRCUIT, ABNORMALITY DETECTION CIRCUIT, LIGHT EMITTING DEVICE, VEHICLE 审中-公开

    公开(公告)号：EP3244700A2

    公开(公告)日：2017-11-15

    申请号：EP17170438.0

    申请日：2017-05-10

    Applicant: ROHM CO., LTD.

    Inventor： NAKATANI, Yoshiyuki ,  TAKAGIMOTO, Shinsuke

    IPC: H05B33/08

    CPC classification number: H02H3/16 ,  B60Q1/04 ,  B60Q1/34 ,  B60Q1/44 ,  G01R31/025 ,  H02H1/0007 ,  H05B33/083 ,  H05B33/0884 ,  H05B33/089

    Abstract: A light emitting device includes a series connection unit constituted of N light emitting elements, a light emitting element driving circuit having an output terminal connected to an anode of the series connection unit, N short-circuit switches respectively connected in parallel to the light emitting elements, and a switch control unit arranged to control on and off of the short-circuit switches. A ground fault detection circuit, which detects a ground fault of the light emitting device, includes a reference voltage source arranged to generate a reference voltage, and a comparator arranged to compare the anode voltage of the series connection unit with the reference voltage. The reference voltage has a value smaller than the product of an on-resistance of one of the short-circuit switches and output current of the light emitting element driving circuit.

    TUBE LED
    9.
    发明授权
    TUBE LED 有权
    管状LED

    公开(公告)号：EP3167225B1

    公开(公告)日：2017-11-01

    申请号：EP15734185.0

    申请日：2015-07-06

    Applicant: Philips Lighting Holding B.V.

    Inventor： TAO, Haimin

    IPC: F21Y115/10 ,  F21V25/04 ,  H05B33/08

    CPC classification number: F21V25/04 ,  F21K9/272 ,  F21K9/278 ,  F21Y2103/10 ,  F21Y2115/10 ,  H05B33/0809 ,  H05B33/0845 ,  H05B33/0884 ,  H05B33/089 ,  Y02B20/383 ,  Y02B20/386

    Abstract: The invention further describes tube LED lamp (1) realised to replace a fluorescent tube lamp (70), which tube LED lamp (1) comprises a tube (12) containing an LED arrangement (10) with a number of LEDs (100); a connector arrangement (16A, 16B) with connectors (16) realized for insertion into sockets (50) of a socket arrangement (50A, 50B) of a tube lamp housing (5) incorporating a dimming ballast (20, 21); a driver circuit arrangement (11) for driving the LED arrangement (10), which driver circuit arrangement (11) is realized to output an LED current (ILED) on the basis of an input current provided by the dimming ballast (20, 21); and a safety switch (S13, M1) arranged within the tube (12) to electrically isolate connectors (16) of the connector arrangement (16A, 16B), wherein the safety switch (S13, M1) is arranged between the driver circuit arrangement (11) and the LED arrangement (10). The invention further describes a method of driving a tube LED lamp (1) from a dimming ballast (20, 21) of a fluorescent tube lamp (70).

    LED BASED LIGHTING APPLICATION
    10.
    发明公开
    LED BASED LIGHTING APPLICATION 审中-公开

    公开(公告)号：EP3232737A3

    公开(公告)日：2017-10-25

    申请号：EP17170170.9

    申请日：2009-09-03

    Applicant: EldoLAB Holding B.V.

    Inventor： WELTEN, Petrus Johannes Maria

    IPC: H05B33/08

    CPC classification number: H05B33/083 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0845 ,  H05B33/0851 ,  H05B33/0857 ,  H05B33/0884 ,  H05B33/089

    Abstract: The present invention relates to a lighting application, the lighting application can e.g. comprise an LED assembly comprising a serial connection of two or more LED units, each LED unit comprising one or more LEDs, each LED unit being provided with a controllable switch for substantially short-circuiting the LED unit. The lighting application further comprises a control unit for controlling a drive unit and arranged to receive a signal representing a voltage level of the supply voltage, and control the switches in accordance with the signal. The invention further provides for an LED driver that enables to operate a TRIAC based dimmer at an optimal holding current and an LED driver comprising a switchable buffer, e.g. a capacitor.

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