Light-emitting diode offline buck converter and method of controlling thereof
    1.
    发明授权
    Light-emitting diode offline buck converter and method of controlling thereof 有权
    发光二极管离线降压转换器及其控制方法

    公开(公告)号:US09055623B1

    公开(公告)日:2015-06-09

    申请号:US13797167

    申请日:2013-03-12

    IPC分类号: H05B37/02

    CPC分类号: H05B33/0848 H05B33/0815

    摘要: A method for controlling a buck converter of an alternating current (AC)-powered light emitting diode (LED) circuit. The method includes receiving an input voltage, and converting the input voltage to a feedback voltage. The method can also include sending the feedback voltage to the buck converter. The feedback voltage is proportional to the input voltage by a first factor when the input voltage is less than an upper threshold voltage and greater than a lower threshold voltage. The feedback voltage is proportional to the input voltage by a second factor when the input voltage is at least as great as the upper threshold voltage. The upper threshold voltage is less than a maximum voltage of the input voltage.

    摘要翻译: 一种用于控制交流(AC)供电的发光二极管(LED)电路的降压转换器的方法。 该方法包括接收输入电压,并将输入电压转换成反馈电压。 该方法还可以包括将反馈电压发送到降压转换器。 当输入电压小于上阈值电压并且大于较低阈值电压时,反馈电压与输入电压成比例。 当输入电压至少与上限阈值电压一样大时,反馈电压与输入电压成比例。 上阈值电压小于输入电压的最大电压。

    Controlling Current Flowing Through LEDs in a LED Lighting Fixture
    2.
    发明申请
    Controlling Current Flowing Through LEDs in a LED Lighting Fixture 有权
    控制在LED照明灯具中流过LED的电流

    公开(公告)号:US20120153833A1

    公开(公告)日:2012-06-21

    申请号:US13328679

    申请日:2011-12-16

    IPC分类号: H05B37/02

    摘要: An alternating current (“AC”)-powered light emitting diode (“LED”) driver is described herein for driving one or more arrays of series-connected LEDs. The LED driver includes a first transistor that includes a collector-emitter path connected in series with at least one LED of an array of series-connected LEDs. The LED driver also includes a second transistor configured to selectively activate the first transistor based on a level of current through the array of series-connected LEDs. The array of series-connected LEDs has a turn-on voltage.

    摘要翻译: 本文描述了用于驱动串联连接的LED的一个或多个阵列的交流(“AC”)供电的发光二极管(“LED”)驱动器。 LED驱动器包括第一晶体管,其包括与串联LED阵列的至少一个LED串联连接的集电极 - 发射极路径。 LED驱动器还包括第二晶体管,其配置为基于通过串联LED阵列的电流水平选择性地激活第一晶体管。 串联LED的阵列具有导通电压。

    Lighting color control
    3.
    发明授权
    Lighting color control 有权
    照明色彩控制

    公开(公告)号:US09485826B2

    公开(公告)日:2016-11-01

    申请号:US14483957

    申请日:2014-09-11

    IPC分类号: H05B33/08

    摘要: A lighting device includes a plurality of light emitting diodes (LEDs) configured to emit a light. The lighting device further includes a color controller configured to repeatedly assert and deactivate a control signal to control whether one or more LEDs of the plurality of LEDs are turned on or turned off. The color controller asserts the control signal for a first time period and deactivates the control signal for a second time period, where a color of the light emitted by the plurality of LEDs depends on the first time period and the second time period. The color controller changes the color of the light emitted by the plurality of LEDs by changing one or both of the first time period and the second time period.

    摘要翻译: 照明装置包括被配置为发射光的多个发光二极管(LED)。 照明装置还包括颜色控制器,配置为重复地断言和停用控制信号,以控制多个LED中的一个或多个LED是否被接通或关闭。 颜色控制器在第一时间段内断言控制信号,并且在多个LED发出的光的颜色取决于第一时间段和第二时间段的情况下,使控制信号停用第二时间段。 颜色控制器通过改变第一时间段和第二时间段中的一个或两个来改变由多个LED发射的光的颜色。

    Dimming for light-emitting diode circuits
    4.
    发明授权
    Dimming for light-emitting diode circuits 有权
    发光二极管电路调光

    公开(公告)号:US09084306B1

    公开(公告)日:2015-07-14

    申请号:US13799543

    申请日:2013-03-13

    IPC分类号: H05B37/02

    摘要: A dimming circuit for a light-emitting diode fixture includes a dimming switch, a signal transfer device, and a timer. The dimming switch can include a dimming switch and generate a current at a first voltage level, where the current corresponds to a dimmer setting of the dimmer switch. The signal transfer device can include an input communicably coupled to an output, where the input of the signal transfer device is electrically coupled to the dimming switch, and where the output of the signal transfer device generates a signal at a second voltage level based on the current received by the input. The timer can be electrically coupled to the output of the signal transfer device and to a LED driver, where the timer generates a pulse width modulation (PWM) signal based on the signal, and where the timer sends the PWM signal to the LED driver.

    摘要翻译: 用于发光二极管灯具的调光电路包括调光开关,信号传输装置和定时器。 调光开关可以包括调光开关并且在第一电压电平处产生电流,其中电流对应于调光器开关的调光器设置。 信号传送装置可以包括可通信地耦合到输出的输入,其中信号传送装置的输入电耦合到调光开关,并且其中信号传送装置的输出基于第二电压电平产生第二电压电平的信号 当前由输入接收。 定时器可以电耦合到信号传送装置和LED驱动器的输出,其中定时器基于该信号产生脉宽调制(PWM)信号,并且定时器将PWM信号发送到LED驱动器。

    Visible Light Communication with Increased Signal-to-Noise Ratio
    5.
    发明申请
    Visible Light Communication with Increased Signal-to-Noise Ratio 有权
    可见光通信与增加的信噪比

    公开(公告)号:US20140241735A1

    公开(公告)日:2014-08-28

    申请号:US13835597

    申请日:2013-03-15

    IPC分类号: H04B10/564 H04B10/54

    CPC分类号: H04B10/116 H04B10/502

    摘要: A method of increasing modulation of a visible light signal. The method can include receiving a signal that corresponds to the visible light signal, where the visible light signal has a magnitude. The method can also include adjusting, by a controller and based on the signal, a dimmer level of a dimmer by an amount, where the amount is proportional to the magnitude of the visible light signal, and where the dimmer level adjusts an output of a driver circuit. The visible light signal and the output of the driver circuit can be combined into a power signal and sent to one or more light sources. The one or more light sources can use the power signal to generate a light output that includes a visible light communication signal that is received by a receiver.

    摘要翻译: 增加可见光信号调制的方法。 该方法可以包括接收与可见光信号相对应的信号,其中可见光信号具有大小。 该方法还可以包括通过控制器并且基于信号调整调光器的调光器电平的量,其中该量与可见光信号的幅度成比例,并且其中调光器电平调节 驱动电路。 可见光信号和驱动电路的输出可以组合成电力信号并发送到一个或多个光源。 一个或多个光源可以使用功率信号来产生包括由接收器接收的可见光通信信号的光输出。

    Controlled color transition
    6.
    发明授权

    公开(公告)号:US09603218B1

    公开(公告)日:2017-03-21

    申请号:US14657966

    申请日:2015-03-13

    IPC分类号: H05B33/08

    摘要: A method of iteratively adjusting a color of light emitted by a light source includes setting a weighted target color to an initial color of a light emitted by a light source. The method further includes determining a target color of the light by a color controller to iteratively adjust a color of the light to the target color of the light. The method also includes determining an updated weighted target color as a combination of a portion of the weighted target color and a portion of the target color. The method further includes adjusting the color of the light by the color controller to the weighted target color.

    Controlling current flowing through LEDs in a LED lighting fixture
    7.
    发明授权
    Controlling current flowing through LEDs in a LED lighting fixture 有权
    控制在LED照明灯具中流过LED的电流

    公开(公告)号:US08779675B2

    公开(公告)日:2014-07-15

    申请号:US13328679

    申请日:2011-12-16

    IPC分类号: H05B39/02 H05B37/00

    摘要: An alternating current (“AC”)-powered light emitting diode (“LED”) driver is described herein for driving one or more arrays of series-connected LEDs. The LED driver includes a first transistor that includes a collector-emitter path connected in series with at least one LED of an array of series-connected LEDs. The LED driver also includes a second transistor configured to selectively activate the first transistor based on a level of current through the array of series-connected LEDs. The array of series-connected LEDs has a turn-on voltage.

    摘要翻译: 本文描述了用于驱动串联连接的LED的一个或多个阵列的交流(“AC”)供电的发光二极管(“LED”)驱动器。 LED驱动器包括第一晶体管,其包括与串联LED阵列的至少一个LED串联连接的集电极 - 发射极路径。 LED驱动器还包括第二晶体管,其配置为基于通过串联LED阵列的电流水平选择性地激活第一晶体管。 串联LED的阵列具有导通电压。

    Lighting control using scan and step change
    8.
    发明授权
    Lighting control using scan and step change 有权
    照明控制使用扫描和步进更改

    公开(公告)号:US08305014B1

    公开(公告)日:2012-11-06

    申请号:US12776725

    申请日:2010-05-10

    摘要: A lighting control system determines an optimal way to operate one or more lamps to achieve a desired light output and/or to control one or more parameters. The lighting control system includes a detection circuit and a control circuit. The control circuit performs a wide-scope scan and a narrow-scope scan to find the best way to operate the lamps. The wide-scope scan includes driving the lamp(s) using multiple output settings, evaluating the light output at each setting, and determining which setting produced the best results. The narrow-scope scan includes making small adjustments to the settings to better refine the light output. The detection circuit includes one or more sensors for providing measurements of the light output by the lamp(s) or of a controller parameter, such as power consumption, for each setting evaluated by the control circuit.

    摘要翻译: 照明控制系统确定操作一个或多个灯以实现期望的光输出和/或控制一个或多个参数的最佳方式。 照明控制系统包括检测电路和控制电路。 控制电路执行宽扫描和窄扫描,找到操作灯的最佳方式。 宽幅扫描包括使用多个输出设置驱动灯泡,评估每个设置的光输出,并确定哪个设置产生最佳效果。 窄范围扫描包括对设置进行小的调整,以更好地改善光输出。 检测电路包括一个或多个传感器,用于对由控制电路评估的每个设置提供由灯的光输出或诸如功率消耗的控制器参数的测量值的测量。

    Visible light communication with increased signal-to-noise ratio
    9.
    发明授权
    Visible light communication with increased signal-to-noise ratio 有权
    可见光通信,增加了信噪比

    公开(公告)号:US09118415B2

    公开(公告)日:2015-08-25

    申请号:US13835597

    申请日:2013-03-15

    IPC分类号: H04B10/00 H04B10/116

    CPC分类号: H04B10/116 H04B10/502

    摘要: A method of increasing modulation of a visible light signal. The method can include receiving a signal that corresponds to the visible light signal, where the visible light signal has a magnitude. The method can also include adjusting, by a controller and based on the signal, a dimmer level of a dimmer by an amount, where the amount is proportional to the magnitude of the visible light signal, and where the dimmer level adjusts an output of a driver circuit. The visible light signal and the output of the driver circuit can be combined into a power signal and sent to one or more light sources. The one or more light sources can use the power signal to generate a light output that includes a visible light communication signal that is received by a receiver.

    摘要翻译: 增加可见光信号调制的方法。 该方法可以包括接收与可见光信号相对应的信号,其中可见光信号具有大小。 该方法还可以包括通过控制器并且基于信号调整调光器的调光器电平的量,其中该量与可见光信号的幅度成比例,并且其中调光器电平调节 驱动电路。 可见光信号和驱动电路的输出可以组合成电力信号并发送到一个或多个光源。 一个或多个光源可以使用功率信号来产生包括由接收器接收的可见光通信信号的光输出。

    Lighting Color Control
    10.
    发明申请
    Lighting Color Control 有权
    照明色彩控制

    公开(公告)号:US20150069923A1

    公开(公告)日:2015-03-12

    申请号:US14483957

    申请日:2014-09-11

    IPC分类号: H05B33/08

    摘要: A lighting device includes a plurality of light emitting diodes (LEDs) configured to emit a light. The lighting device further includes a color controller configured to repeatedly assert and deactivate a control signal to control whether one or more LEDs of the plurality of LEDs are turned on or turned off. The color controller asserts the control signal for a first time period and deactivates the control signal for a second time period, where a color of the light emitted by the plurality of LEDs depends on the first time period and the second time period. The color controller changes the color of the light emitted by the plurality of LEDs by changing one or both of the first time period and the second time period.

    摘要翻译: 照明装置包括被配置为发射光的多个发光二极管(LED)。 照明装置还包括颜色控制器,配置为重复地断言和停用控制信号,以控制多个LED中的一个或多个LED是否被接通或关闭。 颜色控制器在第一时间段内断言控制信号,并且在多个LED发出的光的颜色取决于第一时间段和第二时间段的情况下,使控制信号停用第二时间段。 颜色控制器通过改变第一时间段和第二时间段中的一个或两个来改变由多个LED发出的光的颜色。