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    Controlling An Electronic Dimming Ballast During Low Temperature Or Low Mercury Conditions
    3.
    发明申请
    Controlling An Electronic Dimming Ballast During Low Temperature Or Low Mercury Conditions 有权
    在低温或低汞条件下控制电子调光镇流器

    公开(公告)号：US20140239836A1

    公开(公告)日：2014-08-28

    申请号：US13777753

    申请日：2013-02-26

    Applicant: LUTRON ELECTRONICS CO., INC.

    Inventor： Venkatesh Chitta ,  Russell L. MacAdam

    IPC: H05B37/02 ,  H05B41/38

    CPC classification number: H05B41/39 ,  H05B33/0809 ,  H05B33/0845 ,  H05B37/02 ,  H05B41/38 ,  H05B41/392

    Abstract: An electronic dimming ballast or light emitting diode (LED) driver for driving a gas discharge lamp or LED lamp may be operable to control the lamp to avoid flickering and flashing of the lamp during low temperature or low mercury conditions. Such a ballast or driver may include a control circuit that is operable to adjust the intensity of the lamp. Adjusting the intensity of the lamp may include decreasing the intensity of the lamp. The control circuit may be operable to stop adjustment of the intensity of the lamp if a magnitude of the lamp voltage across the lamp is greater than an upper threshold, and subsequently begin to adjust the intensity of the lamp when the lamp voltage across the lamp is less than a lower threshold. Subsequently beginning to adjust the intensity of the lamp may include subsequently decreasing the intensity of the lamp.

    Abstract translation: 用于驱动气体放电灯或LED灯的电子调光镇流器或发光二极管（LED）驱动器可操作以控制灯以避免在低温或低汞条件下灯的闪烁和闪烁。 这种镇流器或驱动器可以包括可操作以调节灯的强度的控制电路。 调节灯的强度可能包括降低灯的强度。 如果灯两端的灯电压的大小大于上阈值，则控制电路可以停止对灯的强度的调整，随后当灯两端的灯电压为 小于较低的门槛。 随后开始调节灯的强度可以包括随后降低灯的强度。

    Controlling a controllably conductive device based on zero-crossing detection
    4.
    发明授权
    Controlling a controllably conductive device based on zero-crossing detection 有权

    公开(公告)号：US09991075B2

    公开(公告)日：2018-06-05

    申请号：US14506204

    申请日：2014-10-03

    Applicant: Lutron Electronics Co., Inc.

    Inventor： Robert William Lenig ,  Michael Sizemore ,  Joshua Wilson Thaler ,  Russell L. MacAdam

    IPC: H01H47/18

    CPC classification number: H01H47/18

    Abstract: A load control device may control power delivered to an electrical load from an AC power source. The load control device may include a controllably conductive device adapted to be coupled in series electrical connection between the AC power source and the electrical load, a zero-cross detect circuit configured to generate a zero-cross signal representative of the zero-crossings of an AC voltage. The zero-cross signal may be characterized by pulses occurring in time with the zero-crossings of the AC voltage. The load control device may include a control circuit operatively coupled to the controllably conductive device and the zero cross detect circuit. The control circuit may be configured to identify a rising-edge time and a falling-edge time of one of the pulses of the zero-cross signal, and may control a conductive state of the controllably conductive device based on the rising-edge time and the falling-edge time of the pulse.

    METHODS AND SYSTEMS FOR CONTROLLING AN ELECTRICAL LOAD
    5.
    发明申请
    METHODS AND SYSTEMS FOR CONTROLLING AN ELECTRICAL LOAD 审中-公开
    控制电力负荷的方法和系统

    公开(公告)号：US20160381774A1

    公开(公告)日：2016-12-29

    申请号：US15258961

    申请日：2016-09-07

    Applicant: LUTRON ELECTRONICS CO., INC.

    Inventor： Venkatesh Chitta ,  Russell L. MacAdam ,  Matthew R. Zartman

    IPC: H05B41/39 ,  H05B33/08

    CPC classification number: H05B41/39 ,  H05B33/0809 ,  H05B33/0845 ,  H05B37/02 ,  H05B41/38 ,  H05B41/392

    Abstract: An electronic dimming ballast or light emitting diode (LED) driver for driving a gas discharge lamp or LED lamp may be operable to control the lamp to avoid flickering and flashing of the lamp during low temperature or low mercury conditions. Such a ballast or driver may include a control circuit that is operable to adjust the intensity of the lamp. Adjusting the intensity of the lamp may include decreasing the intensity of the lamp. The control circuit may be operable to stop adjustment of the intensity of the lamp if a magnitude of the lamp voltage across the lamp is greater than an upper threshold, and subsequently begin to adjust the intensity of the lamp when the lamp voltage across the lamp is less than a lower threshold. Subsequently beginning to adjust the intensity of the lamp may include subsequently decreasing the intensity of the lamp.

    Abstract translation: 用于驱动气体放电灯或LED灯的电子调光镇流器或发光二极管（LED）驱动器可操作以控制灯以避免在低温或低汞条件下灯的闪烁和闪烁。 这种镇流器或驱动器可以包括可操作以调节灯的强度的控制电路。 调节灯的强度可能包括降低灯的强度。 如果灯两端的灯电压的大小大于上阈值，则控制电路可以停止对灯的强度的调整，随后当灯两端的灯电压为 小于较低的门槛。 随后开始调节灯的强度可以包括随后降低灯的强度。

    Methods and systems for controlling an electrical load
    6.
    发明授权
    Methods and systems for controlling an electrical load 有权

    公开(公告)号：US10231319B2

    公开(公告)日：2019-03-12

    申请号：US15969255

    申请日：2018-05-02

    Applicant: Lutron Electronics Co., Inc.

    Inventor： Venkatesh Chitta ,  Russell L. MacAdam ,  Matthew R. Zartman

    IPC: H05B41/298 ,  H05B41/30 ,  H05B41/36 ,  H05B41/39 ,  H05B33/08 ,  H05B41/392 ,  H05B41/38 ,  H05B37/02

    Abstract: An electronic dimming ballast or light emitting diode (LED) driver for driving a gas discharge lamp or LED lamp may be operable to control the lamp to avoid flickering and flashing of the lamp during low temperature or low mercury conditions. Such a ballast or driver may include a control circuit that is operable to adjust the intensity of the lamp. Adjusting the intensity of the lamp may include decreasing the intensity of the lamp. The control circuit may be operable to stop adjustment of the intensity of the lamp if a magnitude of the lamp voltage across the lamp is greater than an upper threshold, and subsequently begin to adjust the intensity of the lamp when the lamp voltage across the lamp is less than a lower threshold. Subsequently beginning to adjust the intensity of the lamp may include subsequently decreasing the intensity of the lamp.

    Controlling a controllably conductive device based on zero-crossing detection
    8.
    发明授权
    Controlling a controllably conductive device based on zero-crossing detection 有权

    公开(公告)号：US10424451B2

    公开(公告)日：2019-09-24

    申请号：US15997328

    申请日：2018-06-04

    Applicant: Lutron Electronics Co., Inc.

    Inventor： Robert W. Lenig ,  Michael Sizemore ,  Joshua W. Thaler ,  Russell L. MacAdam

    IPC: H01H47/18 ,  H01H9/56

    Abstract: A load control device may control power delivered to an electrical load from an AC power source. The load control device may include a controllably conductive device adapted to be coupled in series electrical connection between the AC power source and the electrical load, a zero-cross detect circuit configured to generate a zero-cross signal representative of the zero-crossings of an AC voltage. The zero-cross signal may be characterized by pulses occurring in time with the zero-crossings of the AC voltage. The load control device may include a control circuit operatively coupled to the controllably conductive device and the zero cross detect circuit. The control circuit may be configured to identify a rising-edge time and a falling-edge time of one of the pulses of the zero-cross signal, and may control a conductive state of the controllably conductive device based on the rising-edge time and the falling-edge time of the pulse.

    Load Control Device for High-Efficiency Loads
    9.
    发明申请
    Load Control Device for High-Efficiency Loads 审中-公开

    公开(公告)号：US20190159314A1

    公开(公告)日：2019-05-23

    申请号：US16252776

    申请日：2019-01-21

    Applicant: Lutron Electronics Co., Inc.

    Inventor： Russell L. MacAdam ,  Joseph T. Parent ,  Russell Weightman

    IPC: H05B33/08 ,  H05B39/04

    Abstract: A load control device for controlling power delivered from an AC power source to an electrical load may comprise a thyristor, a gate current path, and a control circuit. The control circuit may be configured to control the gate current path to conduct a pulse of gate current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a half-cycle of the AC power source. The control circuit may operate in a first gate drive mode in which the control circuit renders the gate current path non-conductive after a pulse time period from the firing time. The control circuit may operate in a second gate drive mode in which the control circuit maintains the gate current path conductive after the pulse time period during the half-cycle.

    Controlling an electronic dimming ballast during low temperature or low mercury conditions
    10.
    发明授权
    Controlling an electronic dimming ballast during low temperature or low mercury conditions 有权
    在低温或低汞条件下控制电子调光镇流器

    公开(公告)号：US09462660B2

    公开(公告)日：2016-10-04

    申请号：US13777753

    申请日：2013-02-26

    Applicant: Lutron Electronics Co., Inc.

    Inventor： Venkatesh Chitta ,  Russell L. MacAdam ,  Matthew R. Zartman

    IPC: H05B37/02 ,  H05B41/38 ,  H05B41/392

    CPC classification number: H05B41/39 ,  H05B33/0809 ,  H05B33/0845 ,  H05B37/02 ,  H05B41/38 ,  H05B41/392

    Abstract: An electronic dimming ballast or light emitting diode (LED) driver for driving a gas discharge lamp or LED lamp may be operable to control the lamp to avoid flickering and flashing of the lamp during low temperature or low mercury conditions. Such a ballast or driver may include a control circuit that is operable to adjust the intensity of the lamp. Adjusting the intensity of the lamp may include decreasing the intensity of the lamp. The control circuit may be operable to stop adjustment of the intensity of the lamp if a magnitude of the lamp voltage across the lamp is greater than an upper threshold, and subsequently begin to adjust the intensity of the lamp when the lamp voltage across the lamp is less than a lower threshold. Subsequently beginning to adjust the intensity of the lamp may include subsequently decreasing the intensity of the lamp.

    Abstract translation: 用于驱动气体放电灯或LED灯的电子调光镇流器或发光二极管（LED）驱动器可操作以控制灯以避免在低温或低汞条件下灯的闪烁和闪烁。 这种镇流器或驱动器可以包括可操作以调节灯的强度的控制电路。 调节灯的强度可能包括降低灯的强度。 如果灯两端的灯电压的大小大于上阈值，则控制电路可以停止对灯的强度的调整，随后当灯两端的灯电压为 小于较低的门槛。 随后开始调节灯的强度可以包括随后降低灯的强度。

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