DIGITAL LOAD CONTROL SYSTEM PROVIDING POWER AND COMMUNICATION VIA EXISTING POWER WIRING

    公开(公告)号:US20190104599A1

    公开(公告)日:2019-04-04

    申请号:US16188563

    申请日:2018-11-13

    Abstract: A two-way load control system comprises a power device, such as a load control device for controlling an electrical load receiving power from an AC power source, and a controller adapted to be coupled in series between the source and the power device. The load control system may be installed without requiring any additional wires to be run, and is easily configured without the need for a computer or an advanced commissioning procedure. The power device receives both power and communication over two wires. The controller generates a phase-control voltage and transmits a forward digital message to the power device by encoding digital information in timing edges of the phase-control voltage. The power device transmits a reverse digital message to the controller via the power wiring.

    LOAD CONTROL DEVICE HAVING A WIDE OUTPUT RANGE

    公开(公告)号:US20190098716A1

    公开(公告)日:2019-03-28

    申请号:US15903989

    申请日:2018-02-23

    Abstract: A load control device (e.g., an LED driver) for controlling the intensity of a lighting load (e.g., an LED light source) may provide a wide output range and flicker-free adjustment of the intensity of the lighting load. The load control device may comprise a load regulation circuit, a control circuit, and a filter circuit (e.g., a boxcar filter circuit) that operates in a different manner in dependence upon a target current. When the intensity of the lighting load is near a low-end intensity, the control circuit may adjust an operating frequency of the load regulation circuit in response to the target current, and may control the filter circuit to filter a current feedback signal during a filter window that repeats on periodic basis. When the intensity of the lighting load is near a high-end intensity, the control circuit may control the filter circuit to constantly filter the current feedback signal.

    Digital load control system providing power and communication via existing power wiring

    公开(公告)号:US10231317B2

    公开(公告)日:2019-03-12

    申请号:US15589472

    申请日:2017-05-08

    Abstract: A controller comprises a controllably conductive device adapted to be coupled in series electrical connection between an AC power source and a load control device. The controller also comprises a control circuit coupled to the controllably conductive device for rendering the controllably conductive device conductive each half-cycle of the AC power source to generate a phase-control voltage. The control circuit is operable to render the controllably conductive device conductive for a portion of each half-cycle of the AC power source. The control circuit is operable to transmit a digital message to the load control device for controlling the power delivered to the load by encoding digital information in timing edges of the phase-control voltage, where the phase-control voltage having at least one timing edge in each half-cycle of the AC power source when the control circuit is transmitting the digital message to the load control device.

    SYSTEMS AND METHODS FOR CONTROLLING COLOR TEMPERATURE

    公开(公告)号:US20180160491A1

    公开(公告)日:2018-06-07

    申请号:US15832716

    申请日:2017-12-05

    Abstract: Methods and systems may be used for controlling the color temperature of one or more light sources (e.g., discrete-spectrum light sources) based on fixture capability information. Fixture capability information may be obtained using a configuration tool. The fixture capability information may be determined by the configuration tool, and the fixture capability information determined by the configuration tool may be stored and/or processed. The fixture may have a memory for storing the fixture capability information. The fixture capability information may also be stored in a remote network device. A system controller may obtain the fixture capability information from the fixture or the remote control device. The system controller may generate control instructions based on the fixture capability information and send the control instructions to the fixtures.

    Method and Apparatus for Measuring Operating Characteristics in a Load Control Device
    7.
    发明申请
    Method and Apparatus for Measuring Operating Characteristics in a Load Control Device 有权
    用于测量负载控制装置中的工作特性的方法和装置

    公开(公告)号:US20140091722A1

    公开(公告)日:2014-04-03

    申请号:US14099431

    申请日:2013-12-06

    CPC classification number: H05B41/24 H05B37/00 H05B41/295 H05B41/38

    Abstract: A load control device, such as an electronic ballast, for controlling the power delivered from an AC power source to an electrical load, such as one or more fluorescent lamps, comprises a power converter having an inductor and a power switching device coupled to the inductor, a load control circuit adapted to be coupled to the electrical load, and a control circuit operable to calculate an average input power of the load control device. The control circuit may be operable to calculate a cumulative output power of the power converter while the ballast is preheating filaments of the lamps, and to subsequently determine a fault condition in the lamps in response to the calculated cumulative output power of the power converter. Further, the control circuit may be operable to transmit a digital message including the calculated average input power of the load control device.

    Abstract translation: 用于控制从AC电源传递到诸如一个或多个荧光灯的电负载的功率的诸如电子镇流器的负载控制装置包括具有耦合到电感器的电感器和功率开关装置的功率转换器 ,适于耦合到所述电负载的负载控制电路,以及可操作以计算所述负载控制装置的平均输入功率的控制电路。 控制电路可以可操作以在镇流器预热灯的灯丝时计算功率转换器的累积输出功率,并且随后响应于所计算的功率转换器的累积输出功率来确定灯中的故障状况。 此外,控制电路可以用于发送包括计算出的负载控制装置的平均输入功率的数字消息。

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