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    Driver device and driving method for driving a load, in particular an LED unit
    1.
    发明授权
    Driver device and driving method for driving a load, in particular an LED unit 有权
    用于驱动负载的驱动器装置和驱动方法，特别是LED单元

    公开(公告)号：US09565725B2

    公开(公告)日：2017-02-07

    申请号：US14891876

    申请日：2014-05-16

    Applicant: PHILIPS LIGHTING HOLDING B.V.

    Inventor： Kumar Arulandu ,  Harald Josef Günther Radermacher ,  Dmytro Viktorovych Malyna ,  Lucas Louis Marie Vogels ,  Ralph Kurt

    IPC: H05B33/08

    CPC classification number: H05B33/0809 ,  H05B33/0845

    Abstract: The present invention relates to a driver device for driving a load, in particular an LED unit having one or more LEDs, comprising input terminals for receiving an input voltage from an external power source for powering the load, and a connection unit for connecting the input terminals to each other and for providing a current path for a bleeding current, wherein the connection unit comprises a first current path for connecting the input terminals in a first current direction and a second current path for connecting the input terminals in a second current direction opposite to the first current direction, wherein the connection unit comprises a first current control unit for controlling the bleeding current in the connection unit, and wherein the first and the second current path each comprises a second current control unit for controlling the bleeding current in the respective current path.

    Abstract translation: 本发明涉及用于驱动负载的驱动器装置，特别是具有一个或多个LED的LED单元，包括用于从用于为负载供电的外部电源接收输入电压的输入端子以及用于连接输入端的连接单元 端子彼此并且用于提供用于流出电流的电流通路，其中所述连接单元包括用于在第一电流方向上连接所述输入端的第一电流路径和用于在相反的第二电流方向上连接所述输入端的第二电流路径 其中所述连接单元包括用于控制所述连接单元中的出血电流的第一电流控制单元，并且其中所述第一和第二电流路径均包括第二电流控制单元，用于控制所述连接单元中的出血电流 当前路径。

    Dynamic control circuit
    2.
    发明授权
    Dynamic control circuit 有权

    公开(公告)号：US10225898B2

    公开(公告)日：2019-03-05

    申请号：US15320067

    申请日：2015-06-08

    Applicant: PHILIPS LIGHTING HOLDING B.V.

    Inventor： Kumar Arulandu ,  Dmytro Viktorovych Malyna ,  Ralph Kurt

    IPC: H05B33/08 ,  F21K9/238

    Abstract: The invention describes a dynamic control circuit (1) realized for connection in series with an LED arrangement (2), characterized by a first switching element (Q1) realized to provide a path for the LED current (ILED), and a monitoring arrangement (M) realized to control the first switching element (Q1) according to the level of the LED current (ILED) SO that the dynamic control circuit (1) presents a series impedance (Zdyn), which series impedance (Zdyn) gradually increases in response to a decreasing LED current (ILED) through the LED arrangement (2). The invention also describes a dimmable lighting arrangement (10) comprising an LED arrangement (2); a driver (3) realized to provide an input voltage (Vin) and an input current (ILED) to the LED arrangement (2); and such a dynamic control circuit (1) connected in series with the LED arrangement (2). The invention further describes retrofit LED light-bulb (100); and a method of driving an LED arrangement.

    LED lighting circuit fed by current source
    3.
    发明授权
    LED lighting circuit fed by current source 有权

    公开(公告)号：US09913331B2

    公开(公告)日：2018-03-06

    申请号：US15314928

    申请日：2015-05-26

    Applicant: PHILIPS LIGHTING HOLDING B.V.

    Inventor： Kumar Arulandu ,  Rifat Ata Mustafa Hikmet

    IPC: H05B33/08

    CPC classification number: H05B33/0815 ,  H05B33/083 ,  H05B33/0845 ,  H05B33/0857 ,  Y02B20/347

    Abstract: A lighting circuit comprises a first circuit (1) with an element (31) with a diode function coupled serially to a parallel combination of a capacitor (41) and a serial combination of a first LED (21) and a first switch (11) and comprises a second circuit (2) with a second switch (12). The circuits (1, 2) are parallel circuits. The lighting circuit produces light in response to a supply current from a current source (6). The second switch (12), when conducting, lets the supply current pass and prevents it from flowing through the element (31), and, when non-conducting, blocks the supply current and it flows through the element (31). The first switch (11), when non-conducting, prevents the first LED (21) from producing some of the light, and, when conducting, allows the first LED (21) to produce some of the light. Power for the first LED (21) is delivered via the supply current when flowing through the element (31) or via a capacitor current supplied by the capacitor (41).

    System, device for creating an aerial image
    4.
    发明授权
    System, device for creating an aerial image 有权

    公开(公告)号：US10068506B2

    公开(公告)日：2018-09-04

    申请号：US15501051

    申请日：2015-07-01

    Applicant: PHILIPS LIGHTING HOLDING B.V.

    Inventor： Oscar Garcia Morchon ,  Alan Pestrin ,  Kumar Arulandu

    IPC: G03B21/14 ,  H04N13/39 ,  G09F19/18 ,  G05D1/10 ,  H04N13/04 ,  G03B21/608 ,  G05D1/00

    Abstract: The invention relates to a flying device (701) arranged to fly in a space and to present an image in that space, a system comprising multiple flying devices (701) for presenting an image in a space and a method for presenting an image in a space using a flying device (701), wherein the flying device (701) is arranged to fly in the space under control of a control signal, the flying device (701) comprising one or more light units (731) arranged to emit multiple light beams (711, 712, 713) a communication unit arranged to receive the control signal and a processing unit arranged to control, based on the received control signal a position of the flying device and a light output of each of the multiple beams (711, 712, 713).

    Dimmer and LED driver with dimming modes
    7.
    发明授权
    Dimmer and LED driver with dimming modes 有权
    调光器和LED驱动器，具有调光模式

    公开(公告)号：US09532424B2

    公开(公告)日：2016-12-27

    申请号：US14782450

    申请日：2014-03-28

    Applicant: PHILIPS LIGHTING HOLDING B.V.

    Inventor： Kumar Arulandu ,  Dmytro Viktorovych Malyna ,  Harald Josef Günther Radermacher ,  Lucas Louis Marie Vogels ,  Ralph Kurt

    IPC: H05B37/02 ,  H05B33/08

    CPC classification number: H05B33/0845 ,  H05B33/0815 ,  H05B37/02

    Abstract: Drivers (2) comprise converters (21) for converting input signals from dimmers (1) into output signals destined for light emitting diode circuits (3) and controllers (22) for detecting dimming levels of the input signals and for bringing the drivers (2) from first, normal dimming modes into second, eco dimming modes in response to detection results defining the dimming levels being equal to/smaller than threshold levels. In the first/second dimming modes, the first input signals are converted into first/second output signals according to first/second curves (I, II). The second curves (II) define higher light outputs than the first curves (I) for most of the dimming levels. Dimmers (1) comprise indicators (11, 2, 13) for indicating to users the dimming levels of the input signals being equal to/smaller than the threshold levels. The indicators (11, 12, 13) may comprise light emitting diode 10 apparatuses (11), mechanical clicks when turning knobs (12) and markers or markings (13) on the dimmer.

    Abstract translation: 驱动器（2）包括用于将来自调光器（1）的输入信号转换为用于发光二极管电路（3）和控制器（22）的输出信号的转换器（21），用于检测输入信号的调光电平并使驱动器 ）从响应于定义调光水平等于/小于阈值水平的检测结果，将第一，正常调光模式转换成第二，环境调光模式。 在第一/第二调光模式中，根据第一/第二曲线（I，II）将第一输入信号转换成第一/第二输出信号。 第二曲线（II）定义比第一曲线（I）更高的光输出，用于大多数调光电平。 调光器（1）包括用于向用户指示输入信号的调光电平等于/小于阈值电平的指示器（11,2,13）。 指示器（11,12,13）可以包括发光二极管10装置（11），当转动旋钮（12）和调光器上的标记或标记（13）时的机械点击。

    Lighting device suitable for multiple voltage sources
    9.
    发明授权
    Lighting device suitable for multiple voltage sources 有权

    公开(公告)号：US09717121B2

    公开(公告)日：2017-07-25

    申请号：US14434787

    申请日：2014-04-15

    Applicant: PHILIPS LIGHTING HOLDING B.V.

    Inventor： Paul Robert Veldman ,  Patrick Alouisius Martina De Bruycker ,  Sait I Zmit ,  Yi Wang ,  Kumar Arulandu ,  Dennis Claessens ,  Philip Louis Zulma Vael

    IPC: H05B33/08

    CPC classification number: H05B33/0809 ,  Y02B20/342

    Abstract: A lighting device is configured to receive a first voltage signal, and includes: a first circuit coupled to input terminals for receiving the first voltage signal, the first circuit including: rectifying diodes for rectifying the first voltage signal and supplying a second voltage signal, a first capacitor for buffering the second voltage signal, and a second capacitor coupled in parallel to one of the rectifying diodes of the first circuit; a second circuit receiving an input voltage signal, corresponding to the second voltage signal, and converting the input voltage into an output signal; and a light circuit receiving the output signal of the second circuit and including at least one light emitting diode, wherein the first circuit includes a fourth circuit in parallel to the second capacitor, the fourth circuit including at least two fourth circuit diodes and being connected by a fourth capacitor to one of the input terminals.

    Lighting arrangement
    10.
    发明授权
    Lighting arrangement 有权

    公开(公告)号：US09693403B2

    公开(公告)日：2017-06-27

    申请号：US15107156

    申请日：2014-12-18

    Applicant: PHILIPS LIGHTING HOLDING B.V.

    Inventor： Ronald Hans Van Der Voort ,  Patrick Alouisius Martina De Bruycker ,  Dalibor Cvoric ,  Georg Sauerlander ,  Kumar Arulandu

    IPC: H05B33/08 ,  H02M5/458 ,  F21K9/23 ,  F21Y115/10

    CPC classification number: H05B33/0815 ,  F21K9/23 ,  F21Y2115/10 ,  H02M5/458 ,  H05B33/0821 ,  H05B33/0845 ,  Y02B20/383

    Abstract: The invention describes a low-power load arrangement (1) comprising a low-power load (3); a driver (2) for the low-power load (3); connectors (300) for connecting to an electronic transformer (2) realized for converting a mains power supply (4) to a power supply for a normal-power load (5); and a reverse current generating means (LP, SB) realized to provide a reverse current (Irev_LP, Irev_SB) to sustain self-oscillation during operation of the electronic transformer (2), wherein the direction of current flow of the reverse current (Irev_LP, Irev_SB) is opposite in direction to the output current of the electronic transformer (2). The invention further describes a lighting arrangement (1) comprising an electronic transformer (2) realized for converting a mains power supply (4) to a power supply for a normal-power load; a low-power load (3) connected to the electronic transformer (2), which low-power load (3) comprises a low-power light source (30); and wherein the lighting arrangement (1) comprises a reverse current generating means (LP, SB) realized to provide a reverse current (Irev_LP, Irev_SB) to sustain transformer self-oscillation when the transformer (2) drives the low-power load (3), wherein the direction of current flow of the reverse current (Irev_LP, Irev_SB) is opposite in direction to the output current of the electronic transformer (2). The invention also describes a method of driving a low-power load (3) with an electronic transformer (2) realized for driving a normal-power load (5).

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