Method of controlling an LED, and an LED controller
    1.
    发明授权
    Method of controlling an LED, and an LED controller 有权
    控制LED的方法和LED控制器

    公开(公告)号:US08723443B2

    公开(公告)日:2014-05-13

    申请号:US13257266

    申请日:2010-02-25

    IPC分类号: H05B33/00

    摘要: A method is disclosed of controlling a LED, comprising driving the LED with a DC current for a first time, interrupting the DC current for a second time such that the first time and the second time sum to a period, determining at least one characteristic of the LED while the DC current is interrupted, and controlling the DC current during a subsequent period in dependence on the at least one characteristic. The invention thus benefits from the simplicity of DC operation. By operating at the LED in a DC mode, rather than say in a PWM mode, the requirement to be able to adjust the duty cycle is avoided. By including interruptions to the DC current, it is possible to utilize the LED itself to act as a sensor in order to determine a characteristic of the LED. The need for additional sensors is thereby avoided.

    摘要翻译: 公开了一种控制LED的方法,包括第一次用DC电流驱动LED,第二次中断DC电流,使得第一时间和第二时间总和到一个周期,确定至少一个特性 所述LED在DC电流中断期间,并且根据所述至少一个特性在随后的时段期间控制所述DC电流。 因此,本发明由于DC操作的简单性而受益。 通过在DC模式下操作LED,而不是在PWM模式下说明,可以避免能够调整占空比的要求。 通过包含直流电流的中断,可以利用LED本身作为传感器,以便确定LED的特性。 从而避免了对附加传感器的需要。

    METHOD OF CONTROLLING AN LED, AND AN LED CONTROLLER
    2.
    发明申请
    METHOD OF CONTROLLING AN LED, AND AN LED CONTROLLER 有权
    控制LED的方法和LED控制器

    公开(公告)号:US20120001570A1

    公开(公告)日:2012-01-05

    申请号:US13257266

    申请日:2010-02-25

    IPC分类号: H05B37/02

    摘要: A method is disclosed of controlling a LED, comprising driving the LED with a DC current for a first time, interrupting the DC current for a second time such that the first time and the second time sum to a period, determining at least one characteristic of the LED whilst the DC current is interrupted, and controlling the DC current during a subsequent period in dependence on the at least one characteristic. The invention thus benefits from the simplicity of DC operation. By operating at the LED in a DC mode, rather than say in a PWM mode, the requirement to be able to adjust the duty cycle is avoided. By including interruptions to the DC current, it is possible to utilise the LED itself to act as a sensor in order to determine a characteristic of the LED. The need for additional sensors is thereby avoided.

    摘要翻译: 公开了一种控制LED的方法,包括第一次用DC电流驱动LED,第二次中断DC电流,使得第一时间和第二时间总和到一个周期,确定至少一个特性 所述LED在DC电流中断期间,并且根据所述至少一个特性在随后的时段期间控制所述DC电流。 因此,本发明由于DC操作的简单性而受益。 通过在DC模式下操作LED,而不是在PWM模式下说明,可以避免能够调整占空比的要求。 通过包含直流电流的中断,可以利用LED本身作为传感器,以便确定LED的特性。 从而避免了对附加传感器的需要。

    METHOD OF CONTROLLING AN ELECTRONIC BALLAST, AN ELECTRONIC BALLAST AND A LIGHTING CONTROLLER
    3.
    发明申请
    METHOD OF CONTROLLING AN ELECTRONIC BALLAST, AN ELECTRONIC BALLAST AND A LIGHTING CONTROLLER 有权
    控制电子镇流器,电子镇流器和照明控制器的方法

    公开(公告)号:US20120119652A1

    公开(公告)日:2012-05-17

    申请号:US13296803

    申请日:2011-11-15

    IPC分类号: H05B37/02

    CPC分类号: H05B33/0815

    摘要: A method of controlling an electronic ballast for a lighting circuit, the ballast including a bleeder, for use with dimmer circuits, by, in response to a mains supply being connected to the lighting circuit, determining whether a dimmer circuit is present in the lighting circuit; and in response to determining a dimmer circuit is not present, disconnecting the bleeder from the lighting circuit at least until the mains supply is disconnected. The method may be used during, and the determination of whether a dimmer circuit is present is stored at least until the mains supply is disconnected. Determination of either a leading or trailing edge phase cut dimmer may be made by looking for deviation from the expected sine-wave voltage, either directly through temporal or voltage deviation, or indirectly by examining the second differential of the voltage with respect to time.

    摘要翻译: 一种控制用于照明电路的电子镇流器的方法,所述镇流器包括用于与调光器电路一起使用的泄放器,所述镇流器响应于连接到所述照明电路的电源,确定所述照明电路中是否存在调光电路 ; 并且响应于确定不存在调光电路,至少直到主电源断开连接,将放电器与照明电路断开连接。 该方法可以被使用,并且确定是否存在调光电路至少存储直到电源断开。 可以通过直接通过时间或电压偏差寻找与预期正弦波电压的偏差,或间接地通过检查电压相对于时间的第二差分来确定前沿或后沿相位切割调光器。

    SURGE PROTECTION CIRCUIT
    4.
    发明申请
    SURGE PROTECTION CIRCUIT 有权
    防护电路

    公开(公告)号:US20110149444A1

    公开(公告)日:2011-06-23

    申请号:US13059172

    申请日:2009-08-06

    IPC分类号: H02H9/04

    摘要: A surge protection circuit is disclosed for an electrical Load which may be for instance an LED load which is directly connected to a supply such as mains supply, and comprises a plurality of switches which are distributed across a plurality of semiconductor die. A surge detector detects the start of a spike in the supply, which results from, for example the commencement or interruption of a nearby inductive load, and opens all the switches. By distributing the switches across multiple die the peak voltage across each is reduced relative to using a single die; thereby each die can stay within the absolute maximum voltage capacity. Each die may have its own surge detector; alternatively, a single surge detector may be used which communicates with the switches on each of the die. In an extension the bridge rectifier may be integrated into the circuit distributed across the die. In this embodiment additional inter-die clamping diodes are required to prevent unsafe floating of the edge connections of each die.

    摘要翻译: 公开了用于电负载的电涌保护电路,其可以是例如直接连接到诸如电源的电源的LED负载,并且包括分布在多个半导体管芯上的多个开关。 浪涌检测器检测电源中的尖峰的起始,这是由于例如附近的感性负载的启动或中断而导致的,并且打开所有开关。 通过将开关分布在多个管芯上,相对于使用单个管芯而言,每个管脚上的峰值电压减小; 从而每个管芯可以保持在绝对最大电压容量内。 每个模具可能有自己的浪涌检测器; 或者,可以使用与每个模具上的开关通信的单个浪涌检测器。 在扩展中,桥式整流器可以集成到分布在管芯上的电路中。 在该实施例中,需要额外的管芯间钳位二极管来防止每个管芯的边缘连接件的不安全浮动。

    Surge protection circuit
    5.
    发明授权
    Surge protection circuit 有权
    浪涌保护电路

    公开(公告)号:US08593772B2

    公开(公告)日:2013-11-26

    申请号:US13059172

    申请日:2009-08-06

    IPC分类号: H02H3/20

    摘要: A surge protection circuit is disclosed for an electrical Load which may be for instance an LED load which is directly connected to a supply such as mains supply, and comprises a plurality of switches which are distributed across a plurality of semiconductor die. A surge detector detects the start of a spike in the supply, which results from, for example the commencement or interruption of a nearby inductive load, and opens all the switches. By distributing the switches across multiple die the peak voltage across each is reduced relative to using a single die; thereby each die can stay within the absolute maximum voltage capacity. Each die may have its own surge detector; alternatively, a single surge detector may be used which communicates with the switches on each of the die. In an extension the bridge rectifier may be integrated into the circuit distributed across the die. In this embodiment additional inter-die clamping diodes are required to prevent unsafe floating of the edge connections of each die.

    摘要翻译: 公开了用于电负载的电涌保护电路,其可以是例如直接连接到诸如电源的电源的LED负载,并且包括分布在多个半导体管芯上的多个开关。 浪涌检测器检测电源中的尖峰的起始,这是由于例如附近的感性负载的启动或中断而导致的,并且打开所有开关。 通过将开关分布在多个管芯上,相对于使用单个管芯而言,每个管脚上的峰值电压减小; 从而每个管芯可以保持在绝对最大电压容量内。 每个模具可能有自己的浪涌检测器; 或者,可以使用与每个模具上的开关通信的单个浪涌检测器。 在扩展中,桥式整流器可以集成到分布在管芯上的电路中。 在该实施例中,需要额外的管芯间钳位二极管来防止每个管芯的边缘连接件的不安全浮动。

    Method of controlling an electronic ballast, an electronic ballast and a lighting controller
    6.
    发明授权
    Method of controlling an electronic ballast, an electronic ballast and a lighting controller 有权
    控制电子镇流器,电子镇流器和照明控制器的方法

    公开(公告)号:US08653750B2

    公开(公告)日:2014-02-18

    申请号:US13296803

    申请日:2011-11-15

    CPC分类号: H05B33/0815

    摘要: A method of controlling an electronic ballast for a lighting circuit, the ballast including a bleeder, for use with dimmer circuits, by, in response to a mains supply being connected to the lighting circuit, determining whether a dimmer circuit is present in the lighting circuit; and in response to determining a dimmer circuit is not present, disconnecting the bleeder from the lighting circuit at least until the mains supply is disconnected. The method may be used during start, and the determination of whether a dimmer circuit is present is stored at least until the mains supply is disconnected. Determination of either a leading or trailing edge phase cut dimmer may be made by looking for deviation from the expected sine-wave voltage, either directly through temporal or voltage deviation, or indirectly by examining the second differential of the voltage with respect to time.

    摘要翻译: 一种控制用于照明电路的电子镇流器的方法,所述镇流器包括用于与调光器电路一起使用的泄放器,所述镇流器响应于连接到所述照明电路的电源,确定所述照明电路中是否存在调光电路 ; 并且响应于确定不存在调光电路,至少直到主电源断开连接,将放电器与照明电路断开连接。 该方法可以在启动期间使用,并且确定是否存在调光电路至少存储直到主电源断开。 可以通过直接通过时间或电压偏差寻找与预期正弦波电压的偏差,或间接地通过检查电压相对于时间的第二差分来确定前沿或后沿相位切割调光器。

    Describing two LED colors as a single, lumped LED color
    8.
    发明授权
    Describing two LED colors as a single, lumped LED color 有权
    将两种LED颜色描述为单个集中LED颜色

    公开(公告)号:US08410723B2

    公开(公告)日:2013-04-02

    申请号:US11914979

    申请日:2006-05-11

    IPC分类号: H05B37/00

    CPC分类号: H05B33/086 H05B33/0872

    摘要: A light emitting diode (LED) lighting system for producing white light is disclosed. The system comprises sets of LEDs arranged to emit light with different wavelength ranges and associated with different sets of characteristics, and a driving circuit arranged to drive the LEDs. The driving circuit comprises an input for desired light intensity, color rendering index, and color temperature, an input for signals for LED temperature, a model for determining driving currents for said sets of LEDs from said parameters, signals, and characteristics for each of said sets of LEDs; and a current driver for the LEDs. At least one of the sets of LEDs comprises a first subset of LEDs with a first wavelength sub-range and a first set of characteristics, and a second subset of LEDs with a second wavelength sub-range and a second set of characteristics. A lumped wavelength range of the set of LEDs is a range of said first and second wavelength sub-ranges, and the set of characteristics of the set of LEDs is a function of said first and second sets of characteristics. A method for controlling the sets of LEDs is also disclosed.

    摘要翻译: 公开了一种用于产生白光的发光二极管(LED)照明系统。 该系统包括布置成发射具有不同波长范围并且与不同特性集合相关的光的LED组,以及驱动LED驱动LED。 驱动电路包括用于期望的光强度,显色指数和色温的输入,用于LED温度的信号的输入,用于根据所述参数,信号和每个所述的LED的特性确定所述LED组的驱动电流的模型 LED组; 和用于LED的电流驱动器。 所述LED组中的至少一个包括具有第一波长子范围和第一组特性的LED的第一子集,以及具有第二波长子范围和第二组特征的LED的第二子集。 所述一组LED的集总波长范围是所述第一和第二波长子范围的范围,并且所述一组LED的特性集合是所述第一和第二组特性的函数。 还公开了一种用于控制LED组的方法。

    Tiled lighting device
    9.
    发明授权
    Tiled lighting device 有权
    平铺照明装置

    公开(公告)号:US08192066B2

    公开(公告)日:2012-06-05

    申请号:US12594204

    申请日:2008-03-31

    IPC分类号: F21V7/04

    摘要: The present invention relates to a lighting device (10) comprising a tiled light guide (16) comprising a central tile (12b) and at least one end tile (12a, 12c), the end tile(s) (12a, 12c) being arranged at an edge (24, 26) of the light guide (16); at least one solid state light source (18) arranged for coupling light into the light guide (16) in a general direction towards or away from the end tile(s) (12a, 12c); and a plurality of out-coupling structures (20) arranged for coupling light out of the light guide (16); wherein the end tile(s) (12a, 12c) has inherent in-coupling and/or inherent out-coupling of light different from the central tile (12b).

    摘要翻译: 技术领域本发明涉及一种照明装置(10),包括平铺光导(16),其包括中心瓦片(12b)和至少一个端部瓦片(12a,12c),所述端部瓦片(12a,12c) 布置在光导(16)的边缘(24,26)处; 至少一个固态光源(18),布置成在大致方向上朝向或远离所述端砖(12a,12c)将光耦合到所述光导(16)中; 以及布置成用于将光耦合到所述光导(16)之外的多个输出耦合结构(20)。 其中所述端部瓦片(12a,12c)具有与所述中心瓦片(12b)不同的固有的内联的耦合和/或固有的外耦合。

    METHOD AND DRIVER FOR DETERMINING DRIVE VALUES FOR DRIVING A LIGHTING DEVICE
    10.
    发明申请
    METHOD AND DRIVER FOR DETERMINING DRIVE VALUES FOR DRIVING A LIGHTING DEVICE 有权
    用于确定用于驱动照明装置的驱动值的方法和驱动器

    公开(公告)号:US20100072901A1

    公开(公告)日:2010-03-25

    申请号:US12513520

    申请日:2007-11-06

    IPC分类号: H05B37/02

    摘要: The present invention relates to a method for determining drive values for driving a lighting device at a desired brightness and color. The method comprising the steps of determining a first luminous flux weight ratio based on the desired color and a first drive current for driving each of the differently colored LEDs, determining a first luminous flux for each of the differently colored LEDs based on the desired brightness and the first luminous flux weight ratio, comparing, for each of the differently colored LEDs, the first luminous flux with a nominal luminous flux for a plurality of different drive currents, selecting, for each of the differently colored LEDs, a preferred drive current that at least can produce the first luminous flux, determining a second luminous flux weight ratio based on the desired color and the selected drive currents for each of the differently colored LEDs, determining a second luminous flux for each of the differently colored LEDs based on the desired brightness and the second luminous flux weight ratio, and determining a duty cycle for each of the differently colored LEDs at the selected drive currents, wherein the selected currents at the determined duty cycles produces the second luminous flux for each of the differently colored LEDs. The present invention provides for the possibility to limit the number of necessary computational steps for determining preferred drive currents. Furthermore, an increase in number of current level and/or differently colored LEDs would only slightly increase the computational cost.

    摘要翻译: 本发明涉及一种确定用于以期望的亮度和颜色驱动照明装置的驱动值的方法。 该方法包括以下步骤:基于期望的颜色确定第一光通量重量比;以及第一驱动电流,用于驱动每个不同颜色的LED,基于期望的亮度确定每个不同颜色的LED的第一光通量,以及 第一光通量重量比,对于每个不同颜色的LED,比较用于多个不同驱动电流的具有标称光通量的第一光通量,为每个不同颜色的LED选择优选的驱动电流, 至少可以产生第一光通量,基于期望的颜色确定第二光通量重量比,以及为每种不同颜色的LED确定所选择的驱动电流,基于期望的亮度确定每个不同颜色的LED的第二光通量 和第二光束重量比,以及确定所选择的每个不同颜色的LED的占空比 驱动电流,其中在所确定的占空比下的所选择的电流为不同颜色的LED中的每一个产生第二光通量。 本发明提供了限制用于确定优选驱动电流的必要计算步骤的数量的可能性。 此外,当前水平和/或不同颜色的LED的数量的增加将仅略微增加计算成本。