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43 条记录 (耗时 0.018 秒)

    Apparatus and methods for communicating information and power via phase-cut AC waveforms
    1.
    发明授权
    Apparatus and methods for communicating information and power via phase-cut AC waveforms 有权

    公开(公告)号：US11503688B2

    公开(公告)日：2022-11-15

    申请号：US17694185

    申请日：2022-03-14

    申请人： DMF, Inc.

    发明人： Russikesh Kumar ,  Oren Kashani

    IPC分类号： H05B45/20 ,  H05B45/385 ,  H05B45/325 ,  H05B45/31

    摘要： Apparatus and methods for controlling correlated color temperature (CCT) and lighting intensity in lighting fixtures are described. The CCT and intensity may be controlled independently over conventional AC wiring using a conventional dimmer. A lighting controller that resembles a conventional dimmer and that can be installed in place of a dimmer may be used instead of a conventional dimmer to access more control functionalities, still using conventional AC wiring. Wireless communication with the lighting fixture and/or lighting controller are possible.

    Solid-State Lighting With A Luminaire Phase-Dimming Driver
    2.
    发明申请
    Solid-State Lighting With A Luminaire Phase-Dimming Driver 有权

    公开(公告)号：US20220338321A1

    公开(公告)日：2022-10-20

    申请号：US17857807

    申请日：2022-07-05

    申请人： Aleddra Inc.

    发明人： Chungho Hsia

    IPC分类号： H05B45/325 ,  H05B45/59 ,  H05B45/31

    摘要： A light-emitting diode (LED) luminaire phase-dimming driver comprises a first power supply circuit, a second power supply circuit, and an interface control circuit. The second power supply circuit is configured to convert a constant voltage generated from the first power supply circuit into an output direct-current (DC) voltage to dim an external LED luminaire in response to a phase-dimming signal abstracted from a phase-cut mains voltage no matter whether the external LED luminaire is originally dimmable or not. The second power supply circuit is further configured to receive a pulse-width modulation (PWM) signal and to control the output DC voltage in response to the PWM signal. The interface control circuit comprises a relay switch configured to sense the phase-dimming signal and to control switching between an intermediate voltage and the output DC voltage to operate the external LED luminaire without flickering.

    SYSTEMS AND METHODS FOR CONTROLLING CURRENTS FLOWING THROUGH LIGHT EMITTING DIODES
    3.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING CURRENTS FLOWING THROUGH LIGHT EMITTING DIODES 有权

    公开(公告)号：US20220225480A1

    公开(公告)日：2022-07-14

    申请号：US17554306

    申请日：2021-12-17

    申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    发明人： KE LI ,  LIQIANG ZHU

    IPC分类号： H05B45/31 ,  H05B45/10

    摘要： System and method for controlling one or more light emitting diodes. For example, the system includes: a phase detector configured to process information associated with a rectified voltage generated by a rectifier and related to a TRIAC dimmer, the rectified voltage corresponding to a first waveform during a first half cycle of an AC voltage and corresponding to a second waveform during a second half cycle of the AC voltage, the phase detector being further configured to generate a phase detection signal representing a first time duration during which the first waveform indicates that the rectified voltage is larger than a predetermined threshold and representing a second time duration during which the second waveform indicates that the rectified voltage is larger than the predetermined threshold; and a mode detector configured to process information associated with the rectified voltage.

    Solid-state lighting with remote controls
    4.
    发明授权
    Solid-state lighting with remote controls 有权

    公开(公告)号：US11116057B2

    公开(公告)日：2021-09-07

    申请号：US16929540

    申请日：2020-07-15

    申请人： Aleddra Inc.

    发明人： Chungho Hsia

    IPC分类号： G05F1/00 ,  H05B45/31 ,  H05B47/19 ,  H05B45/10 ,  F21K9/278

    摘要： A light-emitting diode (LED) luminaire control system comprising a control circuit is adopted to provide remote control signals to operate an external luminaire that comprises LED arrays and a power supply. The LED luminaire control system further comprises a relay switch, a remote controller, and a transceiver circuit. When the remote control signals are initiated by the remote controller with phase-shift keying (PSK) signals transmitted, the transceiver circuit can demodulate such PSK signals and subsequently send decoded commands to the LED luminaire control system to control the luminaire by turning on and off and dimming up and down the external luminaire.

    LED lighting systems with TRIAC dimmers and methods thereof
    7.
    发明授权
    LED lighting systems with TRIAC dimmers and methods thereof 有权

    公开(公告)号：US11638335B2

    公开(公告)日：2023-04-25

    申请号：US17023632

    申请日：2020-09-17

    申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    发明人： Liqiang Zhu ,  Jun Zhou

    IPC分类号： H05B47/14 ,  H05B45/10 ,  H05B45/395 ,  H05B45/31 ,  H05B45/345 ,  H05B45/50

    摘要： System and method for controlling one or more light emitting diodes. For example, the system for controlling one or more light emitting diodes includes a current regulation circuit coupled to a cathode of one or more light emitting diodes. The one or more light emitting diodes include the cathode and an anode configured to receive a rectified voltage. Additionally, the system includes a control circuit coupled to the cathode of the one or more light emitting diodes. The control circuit is configured to receive a first voltage from the cathode of the one or more light emitting diodes, compare a second voltage and a threshold voltage, and generate a control signal based at least in part on the second voltage and the threshold voltage. The second voltage indicates a magnitude of the first voltage.

    LED lighting systems with TRIAC dimmers and methods thereof
    8.
    发明授权
    LED lighting systems with TRIAC dimmers and methods thereof 有权

    公开(公告)号：US11570859B2

    公开(公告)日：2023-01-31

    申请号：US17023615

    申请日：2020-09-17

    申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

    发明人： Liqiang Zhu ,  Jun Zhou

    IPC分类号： H05B45/10 ,  H05B45/395 ,  H05B45/31 ,  H05B45/345 ,  H05B45/50

    摘要： System and method for controlling one or more light emitting diodes. For example, the system for controlling one or more light emitting diodes includes a current regulation circuit coupled to a cathode of one or more light emitting diodes. The one or more light emitting diodes include the cathode and an anode configured to receive a rectified voltage. Additionally, the system includes a control circuit coupled to the cathode of the one or more light emitting diodes. The control circuit is configured to receive a first voltage from the cathode of the one or more light emitting diodes, compare a second voltage and a threshold voltage, and generate a control signal based at least in part on the second voltage and the threshold voltage. The second voltage indicates a magnitude of the first voltage.

    Two-wire dimmer with improved zero-cross detention
    9.
    发明授权
    Two-wire dimmer with improved zero-cross detention 有权

    公开(公告)号：US11540365B2

    公开(公告)日：2022-12-27

    申请号：US17215332

    申请日：2021-03-29

    申请人： Lutron Technology Company LLC

    发明人： William Zotter ,  Bingrui Yang ,  Henry Kite

    IPC分类号： H05B39/04 ,  H05B39/08 ,  H05B47/16 ,  H05B45/10 ,  H05B47/10 ,  H05B45/305 ,  H05B45/31

    摘要： A lighting device, such as a two-wire lighting control device, may include a controllably conductive device and a control circuit. The controllably conductive device may supply an AC line voltage to a load in response to a dive signal such that the controllable conductive device is non-conductive for a first duration of time and conductive for a second duration of time within a half-cycle of the AC line voltage. The control circuit may receive a signal from the controllably conductive device that represents a voltage developed across the controllable conductive device during the first duration of time. The control circuit may generate a sine-wave-shaped signal that complements the voltage developed across the controllably conductive device during the second duration of time. The control circuit may also filter the signal from the controllably conductive device during the first duration of time and the sine-wave-shaped signal during the second duration of time.