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1.发明授权Time division modulation with average current regulation for independent control of arrays of light-emitting diodes 有权具有用于独立控制发光二极管阵列的平均电流调节的时分调制公开(公告)号：US08569976B2
公开(公告)日：2013-10-29
申请号：US13585781
申请日：2012-08-14
IPC分类号： H05B37/00
CPC分类号： H05B33/083 , H05B33/0815 , H05B33/0818 , H05B33/0827 , H05B33/0869 , Y02B20/347
摘要： Method and computer-readable medium embodiments provide for sourcing current to a series of light-emitting diodes in a plurality of series of light-emitting diodes. A method comprises generating a current, sequentially and separately switching the current to each of the series of light-emitting diodes in the plurality of series of light-emitting diodes for a corresponding period of time, and predicting an output voltage across a selected series of light-emitting diodes using a plurality of parameters stored in a memory.
摘要翻译： 方法和计算机可读介质实施例提供了将电流提供给多系列发光二极管中的一系列发光二极管。 一种方法包括在相当一段时间内产生电流，顺序地和单独地切换电流到多个发光二极管系列中的每一个发光二极管中的每一个，并预测一系列 使用存储在存储器中的多个参数的发光二极管。
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2.发明授权公开(公告)号：US08368636B2
公开(公告)日：2013-02-05
申请号：US11927084
申请日：2007-10-29
IPC分类号： G09G3/36
CPC分类号： H05B33/0854 , H05B33/0809 , H05B33/0818 , H05B33/086
摘要： Representative embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at a full intensity level and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.
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3.发明申请TIME DIVISION MODULATION WITH AVERAGE CURRENT REGULATION FOR INDEPENDENT CONTROL OF ARRAYS OF LIGHT-EMITTING DIODES 有权用于独立控制发光二极管阵列的平均电流调节的时间调制公开(公告)号：US20120306389A1
公开(公告)日：2012-12-06
申请号：US13585781
申请日：2012-08-14
IPC分类号： H05B37/00
CPC分类号： H05B33/083 , H05B33/0815 , H05B33/0818 , H05B33/0827 , H05B33/0869 , Y02B20/347
摘要： Method and computer-readable medium embodiments provide for sourcing current to a series of light-emitting diodes in a plurality of series of light-emitting diodes. A method comprises generating a current, sequentially and separately switching the current to each of the series of light-emitting diodes in the plurality of series of light-emitting diodes for a corresponding period of time, and predicting an output voltage across a selected series of light-emitting diodes using a plurality of parameters stored in a memory.
摘要翻译： 方法和计算机可读介质实施例提供了将电流提供给多系列发光二极管中的一系列发光二极管。 一种方法包括在相当一段时间内产生电流，顺序地和单独地切换电流到多个发光二极管系列中的每一个发光二极管中的每一个，并预测一系列 使用存储在存储器中的多个参数的发光二极管。
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公开(公告)号：US07852300B2
公开(公告)日：2010-12-14
申请号：US11701774
申请日：2007-02-02
CPC分类号： H05B33/0815 , Y02B20/347
摘要： An exemplary apparatus embodiment provides a plurality of operating modes for solid state lighting, such as a flash mode and a constant or background lighting mode for use with devices such as cameras. An exemplary apparatus comprises a memory adapted to store a plurality of average current parameters; and a controller adapted to modulate an energizing cycle time period (“T”) for providing power to the solid state lighting as proportional to the product of the selected average current parameter (“a”) and a reset time period (“TR”) for an inductor current to return to a substantially zero level from a predetermined peak level (T∝a·TR). The average current parameter is predetermined as substantially proportional to a ratio of a peak inductor current level (“IP”) to an average output D.C. current level ( “ I O ” ) ( a ∝ I P I O ) .
摘要翻译： 示例性装置实施例提供用于固态照明的多种操作模式，诸如闪光模式和用于诸如相机的装置的恒定或背景照明模式。 示例性装置包括适于存储多个平均电流参数的存储器; 以及控制器，适于调制与所选择的平均当前参数（“a”）和复位时间段（“TR”）的乘积成比例的向固态照明提供电力的通电周期时间段（“T”）， 使电感电流从预定的峰值电平（Tαa·TR）返回到基本上为零电平。 平均电流参数被预先确定为与峰值电感器电流电平（“IP”）与平均输出直流电流水平（“I O”）（aαI P I O）的比率成正比。
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公开(公告)号：US20100213859A1
公开(公告)日：2010-08-26
申请号：US12639255
申请日：2009-12-16
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , H05B33/0815 , H05B33/0851 , Y02B20/347
摘要： Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system for power conversion comprises: a switching power supply comprising a second, power switch; solid state lighting coupled to the switching power supply; a voltage sensor; a current sensor; a memory; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; a second adaptive interface circuit to create a resonant process when the first switch turns on; and a controller to modulate the second adaptive interface circuit when the first switch turns on to provide a current path during the resonant process of the switching power supply.
摘要翻译： 示例性实施例提供了一种用于功率转换以向固态照明提供电力的装置，系统和方法，并且其可以耦合到诸如调光器开关的第一开关。 用于电力转换的示例性系统包括：开关电源，包括第二电源开关; 固态照明耦合到开关电源; 电压传感器; 电流传感器; 记忆 第一自适应接口电路，用于向第一开关提供电阻性阻抗，并以默认模式传导来自第一开关的电流; 第二自适应接口电路，用于当第一开关导通时产生谐振过程; 以及控制器，用于当所述第一开关导通时调制所述第二自适应接口电路，以在所述开关电源的谐振处理期间提供电流路径。
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公开(公告)号：US20100045187A1
公开(公告)日：2010-02-25
申请号：US12497682
申请日：2009-07-05
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , G05F1/618 , H02M3/157 , H02M2001/0009 , H05B33/0818 , H05B33/0845 , H05B33/0854 , H05B33/086 , H05B33/0869 , H05B33/0872 , H05B33/0884 , H05B33/0887 , H05B37/02 , H05B37/0218 , H05B37/0227 , Y02B20/341
摘要： A system drives one or plurality of LEDs, regulating their brightness by controlling LEDs average current or voltage. The system includes a switching power converter and an integrated digital regulator with at least one of electrical, thermal and optical feedbacks. The regulator is constructed as a hysteretic peak current mode controller for continuous mode of operation of the power converter. For discontinuous mode of operation of the power converter a pulse averaging sliding mode control is being used. Average LED current is measured by integrating LED pulse current at off time and hysteretically adjusting on time of the power switch. Input battery is protected from discharging at abnormally low impedance of the output.
摘要翻译： 系统驱动一个或多个LED，通过控制LED平均电流或电压来调节其亮度。 该系统包括开关电源转换器和具有电，热和光反馈中的至少一个的集成数字调节器。 调节器被构造为用于功率转换器的连续运行模式的迟滞峰值电流模式控制器。 对于功率转换器的不连续运行模式，正在使用脉冲平均滑模控制。 通过在关闭时间集成LED脉冲电流并根据电源开关的时间进行滞后调节来测量平均LED电流。 输入电池防止输出异常低阻抗放电。
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公开(公告)号：US20100026208A1
公开(公告)日：2010-02-04
申请号：US12181686
申请日：2008-07-29
IPC分类号： H05B37/02
CPC分类号： H02M3/33507 , H05B33/08 , H05B33/0815 , H05B37/02 , Y10T307/406
摘要： An apparatus, method and system are provided for power conversion to supply power to a load such as a plurality of light emitting diodes. An exemplary apparatus comprises: a first power converter stage having a first power switch and a first inductive element; a second power converter stage having a second power switch and a second inductive element; a plurality of sensors; and a controller. The second power converter stage provides an output current to the load. The controller is adapted to use a sensed input voltage to determine a switching period, and is further adapted to turn the first and second power switches into an on-state at a frequency substantially corresponding to the switching period while maintaining a switching duty cycle within a predetermined range.
摘要翻译： 提供了一种用于功率转换以向诸如多个发光二极管的负载供电的装置，方法和系统。 示例性装置包括：具有第一电源开关和第一电感元件的第一电力转换器级; 具有第二电源开关和第二电感元件的第二电力转换器级; 多个传感器; 和控制器。 第二个功率转换器级向负载提供输出电流。 控制器适于使用感测的输入电压来确定开关周期，并且还适于将第一和第二功率开关转换成基本对应于开关周期的频率的导通状态，同时保持开关占空比在 预定范围。
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公开(公告)号：US20090251934A1
公开(公告)日：2009-10-08
申请号：US12098443
申请日：2008-04-06
CPC分类号： H05B33/0815 , H02M3/155 , H02M3/157
摘要： An apparatus method and system are provided for power conversion, to supply power to a nonlinear load such as a plurality of light emitting diodes. An exemplary apparatus comprises a first power converter stage, a second power converter stage, a plurality of sensors such as first and second sensors, and a controller. The first power converter stage includes a power switch and a first inductor having a first inductance. The first and second sensors are both coupled to a common reference node, with the first sensor adapted to sense a first parameter of the first power converter stage, and the second sensor adapted to sense the output current level. The second power converter stage includes a second inductor having a second inductance, and is coupleable to provide an output current to the nonlinear load such as LEDs. The controller is coupled to the power switch, the first sensor and the second sensor, and the controller is adapted to turn the power switch into an on state for an on-time duration substantially proportional to a ratio of the second inductance to the first inductance.
摘要翻译： 提供了用于功率转换的装置方法和系统，以向诸如多个发光二极管的非线性负载供电。 示例性装置包括第一功率转换器级，第二功率转换器级，诸如第一和第二传感器的多个传感器以及控制器。 第一功率转换器级包括电源开关和具有第一电感的第一电感器。 第一和第二传感器都耦合到公共参考节点，其中第一传感器适于感测第一功率转换器级的第一参数，并且第二传感器适于感测输出电流电平。 第二功率转换器级包括具有第二电感的第二电感器，并且可耦合以向诸如LED的非线性负载提供输出电流。 控制器耦合到电源开关，第一传感器和第二传感器，并且控制器适于将功率开关转换到接通状态，导通时间基本上与第二电感与第一电感的比率成比例 。
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公开(公告)号：US20060002155A1
公开(公告)日：2006-01-05
申请号：US11208323
申请日：2005-08-19
申请人： Anatoly Shteynberg , Junjie Zheng , Harry Rodriguez , Mark Telefus , Dongsheng Zhou , Arthur Collmeyer
发明人： Anatoly Shteynberg , Junjie Zheng , Harry Rodriguez , Mark Telefus , Dongsheng Zhou , Arthur Collmeyer
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M1/4258 , Y02B70/126 , Y02P80/112
摘要： A power converter delivers electrical power from an electrical power source to a load according to a plurality of operation modes corresponding to different levels of input voltage or output current. The power converter comprises a power stage for delivering the electrical power from the power source to the load, a switch in the power stage that electrically couples or decouples the load to the power source, and a switch controller coupled to the switch for controlling the on-times and off-times of the switch according to the plurality of operation modes. Each of the operation modes correspond to associated ranges of at least one of an input voltage to the power converter and an output current from the power converter, where the associated ranges are different for each of the operation modes.
摘要翻译： 功率转换器根据与不同输入电压或输出电流水平对应的多个操作模式，将电力从电源传送到负载。 功率转换器包括用于将电力从电源传送到负载的功率级，功率级中的电耦接或去耦电源到电源的开关，以及耦合到开关的开关控制器，用于控制导通 根据多种操作模式的开关的时间和关闭时间。 每个操作模式对应于到功率转换器的输入电压和来自功率转换器的输出电流中的至少一个的相关范围，其中相关联的范围对于每个操作模式是不同的。
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公开(公告)号：US06944034B1
公开(公告)日：2005-09-13
申请号：US10610977
申请日：2003-06-30
申请人： Anatoly Shteynberg , Junjie Zheng , Harry Rodriguez , Mark D. Telefus , Dongsheng Zhou , Arthur J. Collmeyer
发明人： Anatoly Shteynberg , Junjie Zheng , Harry Rodriguez , Mark D. Telefus , Dongsheng Zhou , Arthur J. Collmeyer
CPC分类号： H02M3/33523 , H02M1/4258 , Y02B70/126 , Y02P80/112
摘要： A power converter delivers electrical power from an electrical power source to a load according to a plurality of operation modes corresponding to different levels of input voltage or output current. The power converter comprises a power stage for delivering the electrical power from the power source to the load, a switch in the power stage that electrically couples or decouples the load to the power source, and a switch controller coupled to the switch for controlling the on-times and off-times of the switch according to the plurality of operation modes. Each of the operation modes correspond to associated ranges of at least one of an input voltage to the power converter and an output current from the power converter, where the associated ranges are different for each of the operation modes.
摘要翻译： 功率转换器根据与不同输入电压或输出电流水平对应的多个操作模式，将电力从电源传送到负载。 功率转换器包括用于将电力从电源传送到负载的功率级，功率级中的电耦接或去耦电源到电源的开关，以及耦合到开关的开关控制器，用于控制导通 根据多种操作模式的开关的时间和关闭时间。 每个操作模式对应于到功率转换器的输入电压和来自功率转换器的输出电流中的至少一个的相关范围，其中相关联的范围对于每个操作模式是不同的。
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