LIGHT UNIT
    1.
    发明专利

    公开(公告)号:CA2643114A1

    公开(公告)日:2007-09-20

    申请号:CA2643114

    申请日:2007-03-08

    Abstract: The present invention provides a light unit that is interchangeable within a lighting device. The light unit comprises a carrier to which one or more light-emitting elements are connected. A memory device is further operatively coupled to the carrier, wherein the memory device includes information representative of the operational characteristics of the one or more light-emitting elements associated with the carrier. Upon the operative coupling of the light unit with a lighting device, a control system associated with the lighting device can access the memory device to obtain operational characteristics of the one or more light-emitting elements associated with the carrier. In this manner, the operational characteristics of the light-emitting elements can be immediately available to the control system, without the need for calibration of the lighting device subsequent to the replacement or changing of the light unit with the lighting device.

    ADAPTIVE CONTROL APPARATUS AND METHOD FOR A SOLID-STATE LIGHTING SYSTEM

    公开(公告)号:CA2643182C

    公开(公告)日:2014-09-02

    申请号:CA2643182

    申请日:2007-03-12

    Abstract: The present invention provides a method and apparatus for adaptive control of a solid-state lighting system consisting of one or more groups of one or more light-emitting elements The invention comprises a voltage control device to provide each group with an independently controllable voltage A feedback system to detect and generate a signal representative of drive currents through the one or more groups A computing device then adaptively evaluates, based on the signal, a required voltage that achieves a desired respective drive current in each of the one or more groups.

    APPARATUS AND METHOD FOR CONTROLLING ACTIVATION OF AN ELECTRONIC DEVICE

    公开(公告)号:CA2643257A1

    公开(公告)日:2007-09-20

    申请号:CA2643257

    申请日:2007-03-14

    Abstract: The present invention provides a method and apparatus for controlling the activation of an electronic device. For a desired activation ratio, which defines the "ON" time relative to the "OFF" time of the electronic device fo r a given time period, the method and apparatus according to the present invention evaluates an activation sequence. The activation sequence comprise s two or more activation time periods and one or more deactivation periods, wherein the ratio between the two or more activation periods and the predetermined time period is equivalent to the desired activation ratio.

    ADAPTIVE CONTROL APPARATUS AND METHOD FOR A SOLID-STATE LIGHTING SYSTEM

    公开(公告)号:CA2643182A1

    公开(公告)日:2007-09-20

    申请号:CA2643182

    申请日:2007-03-12

    Abstract: The present invention provides a method and apparatus for adaptive control of a solid-state lighting system consisting of one or more groups of one or more light-emitting elements The invention comprises a voltage control device to provide each group with an independently controllable voltage A feedback system to detect and generate a signal representative of drive currents through the one or more groups A computing device then adaptively evaluates, based on the signal, a required voltage that achieves a desired respective drive current in each of the one or more groups.

    SWITCHED CONSTANT CURRENT DRIVING AND CONTROL CIRCUIT
    5.
    发明公开
    SWITCHED CONSTANT CURRENT DRIVING AND CONTROL CIRCUIT 有权
    SCHALT-KONSTANTSTROMANSTEUER- UND STEUERSCHALTUNG

    公开(公告)号:EP1776628A4

    公开(公告)日:2009-06-10

    申请号:EP05759404

    申请日:2005-06-23

    CPC classification number: H05B33/0815 H05B33/0818 H05B33/0857

    Abstract: The driving and control device according to the present invention provides a desired switched current to a load including a string of one or more electronic devices, and comprises one or more voltage conversion means, one or more dimming control means, one or more feedback means and one or more sensing means. The voltage conversion means may be a DC-to-DC converter for example and based on an input control signal converts the magnitude of the voltage from the power supply to another magnitude that is desired at the high side of the load. The dimming control means may comprise a switch such as a FET, BJT, relay, or any other type of switching device, for example, and provides control for activation and deactivation of the load. The feedback means is coupled to the voltage conversion means and a current sensing means and provides a feedback signal to the voltage conversion means that is indicative of the voltage drop across the current sensing means which thus represents the current flowing through the load. The current sensing means may comprise a fixed resistor, variable resistor, inductor, or some other element which has a predictable voltage-current relationship and thus will provide a measurement of the current flowing through the load based on a collected voltage signal. Based on the feedback signal received, the voltage conversion means can subsequently adjust its output voltage such that a constant switched current is provided to the load.

    Abstract translation: 根据本发明的驱动和控制设备向包括一串或多个电子设备的负载提供期望的切换电流,并且包括一个或多个电压转换装置,一个或多个调光控制装置,一个或多个反馈装置和 一个或多个感测装置。 电压转换装置例如可以是DC-DC转换器,并且基于输入控制信号将来自电源的电压的大小转换为负载高端处所需的另一大小。 调光控制装置例如可以包括诸如FET,BJT,继电器或任何其他类型的开关装置的开关,并且提供对负载的激活和去激活的控制。 反馈装置耦合到电压转换装置和电流感测装置,并向电压转换装置提供反馈信号,该反馈信号表示电流感测装置两端的电压降,其表示流过负载的电流。 电流感测装置可以包括固定电阻器,可变电阻器,电感器或具有可预测的电压 - 电流关系的一些其它元件,并且因此将基于收集的电压信号提供流过负载的电流的测量值。 基于接收到的反馈信号,电压转换装置可随后调节其输出电压,使得向负载提供恒定的开关电流。

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