公开(公告)号：US20130057180A1

公开(公告)日：2013-03-07

申请号：US13697611

申请日：2011-04-26

申请人： Michael Datta

发明人： Michael Datta

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0887

摘要： A method is provided for detecting and correcting improper operation of a lighting system including a solid state lighting load. The method includes detecting first and second values of a phase angle of a dimmer connected to a power converter driving the solid state lighting load, the first and second values corresponding to consecutive half cycles of an input mains voltage signal, and determining a difference between the first and second values. When the difference is greater than a difference threshold, indicating asymmetric waveforms of the input mains voltage signal, a selected corrective action is implemented.

摘要翻译： 提供了一种用于检测和校正包括固态照明负载的照明系统的不正确操作的方法。 该方法包括检测连接到驱动固态照明负载的功率转换器的调光器的相位角的第一和第二值，对应于输入电源电压信号的连续半周期的第一和第二值，以及确定 第一和第二个值。 当差值大于差分阈值时，指示输入电源电压信号的不对称波形，则实施所选择的校正动作。

公开(公告)号：US08390207B2

公开(公告)日：2013-03-05

申请号：US12681950

申请日：2008-10-08

申请人： Kevin J. Dowling ,  Ihor A. Lys ,  Brian Roberge ,  Ryan C. Williamson ,  Ron Roberts ,  Michael Datta ,  Tomas Mollnow ,  Frederick M. Morgan

发明人： Kevin J. Dowling ,  Ihor A. Lys ,  Brian Roberge ,  Ryan C. Williamson ,  Ron Roberts ,  Michael Datta ,  Tomas Mollnow ,  Frederick M. Morgan

IPC分类号： H05B37/02 ,  H01J61/52 ,  H01K1/30

CPC分类号： F21K9/60 ,  H01L2224/48091 ,  H01L2224/48227 ,  H05B33/0818 ,  H05B33/0857 ,  Y02B20/347 ,  H01L2924/00014

摘要： Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

摘要翻译： 描述了采用LED光源的照明装置和方法。 LED光源与照明器或其他通用照明结构形式的其他部件集成。 一些照明结构形成为抛物面铝反射器（PAR）灯具，允许它们插入常规插座。 照明结构显示有效的操作特性，如高效运行，高散热，高输出，良好的色彩混合。

公开(公告)号：US10015860B2

公开(公告)日：2018-07-03

申请号：US13639880

申请日：2011-03-29

申请人： Michael Datta ,  Gregory Campbell

发明人： Michael Datta ,  Gregory Campbell

IPC分类号： H05B37/02 ,  H05B33/08 ,  H05B39/08

CPC分类号： H05B37/02 ,  H05B33/0815 ,  H05B39/08

摘要： A system and method control an amount of power delivered by a power converter (220) to a solid state lighting load (240). It is determined whether a dimmer (204) is present between a voltage source (201) and the power converter (220) based on a rectified input voltage from the voltage source. When the dimmer is determined to be present, an operating point of the power converter is adjusted to increase the amount of power delivered by the power converter to the solid state lighting load by a compensation amount, so that the increased amount of power is equal to an amount of power delivered by the power converter when the dimmer is not present.

公开(公告)号：US09485833B2

公开(公告)日：2016-11-01

申请号：US13636165

申请日：2011-03-11

申请人： Michael Datta ,  Gregory Campbell

发明人： Michael Datta ,  Gregory Campbell

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B37/02 ,  H05B33/0809 ,  H05B33/0845

摘要： A system for controlling a level of light output by a solid state lighting load controlled by a dimmer includes a phase angle detector and a power converter. The phase angle detector is configured to detect a phase angle of the dimmer based on a rectified voltage from the dimmer and to determine a power control signal based on comparison of the detected phase angle with a predetermined first threshold. The power converter is configured to provide an output voltage to the solid state lighting load, the power converter operating in an open loop mode based on the rectified voltage from the dimmer when the detected phase angle is greater than the first threshold, and operating in a closed loop mode based on the rectified voltage from the dimmer and the determined power control signal from the detection circuit when the detected phase angle is less than the first threshold.

摘要翻译： 用于通过由调光器控制的固态照明负载来控制光输出电平的系统包括相位角检测器和功率转换器。 相位角检测器被配置为基于来自调光器的整流电压来检测调光器的相位角，并且基于检测到的相位角与预定的第一阈值的比较来确定功率控制信号。 功率转换器被配置为向固态照明负载提供输出电压，当检测到的相位角大于第一阈值时，功率转换器基于来自调光器的整流电压以开环模式工作，并且在 当检测到的相位角小于第一阈值时，基于来自调光器的整流电压的闭环模式和来自检测电路的确定的功率控制信号。

公开(公告)号：US08816593B2

公开(公告)日：2014-08-26

申请号：US13509863

申请日：2010-04-13

申请人： Ihor Lys ,  Michael Datta ,  Gregory Campbell

发明人： Ihor Lys ,  Michael Datta ,  Gregory Campbell

IPC分类号： H05B41/36 ,  H05B37/02 ,  H05B39/00

CPC分类号： H05B39/044 ,  Y02B20/146

摘要： A device for detecting a dimmer phase angle set by operation of a dimmer for a solid state lighting load includes a processor having a digital input, a first diode connected between the digital input and a voltage source and a second diode connected between the digital input and ground. The device further includes a first capacitor connected between the digital input and a detection node, a second capacitor connected between the detection node and ground, and a resistance connected between the detection node and a rectified voltage node, which receives a rectified voltage from the dimmer. The processor is configured to sample digital pulses at the digital input based on the rectified voltage and to identify the dimmer phase angle based on lengths of the sampled digital pulses.

摘要翻译： 用于检测通过固态照明负载的调光器的操作设置的调光相位角的装置包括具有数字输入的处理器，连接在数字输入和电压源之间的第一二极管和连接在数字输入和 地面。 该装置还包括连接在数字输入和检测节点之间的第一电容器，连接在检测节点和地之间的第二电容器以及连接在检测节点和整流电压节点之间的电阻，该电阻接收来自调光器的整流电压 。 处理器被配置为基于整流电压在数字输入处采样数字脉冲，并且基于采样的数字脉冲的长度来识别调光相位角。

公开(公告)号：US20130193866A1

公开(公告)日：2013-08-01

申请号：US13639880

申请日：2011-03-29

申请人： Michael Datta ,  Gregory Campbell

发明人： Michael Datta ,  Gregory Campbell

IPC分类号： H05B37/02

CPC分类号： H05B37/02 ,  H05B33/0815 ,  H05B39/08

摘要： A system and method control an amount of power delivered by a power converter (220) to a solid state lighting load (240). It is determined whether a dimmer (204) is present between a voltage source (201) and the power converter (220) based on a rectified input voltage from the voltage source. When the dimmer is determined to be present, an operating point of the power converter is adjusted to increase the amount of power delivered by the power converter to the solid state lighting load by a compensation amount, so that the increased amount of power is equal to an amount of power delivered by the power converter when the dimmer is not present.

摘要翻译： 系统和方法控制由功率转换器（220）传送到固态照明负载（240）的功率量。 基于来自电压源的整流输入电压，确定电压源（201）和功率转换器（220）之间是否存在调光器（204）。 当确定存在调光器时，调整功率转换器的工作点以增加功率转换器向固态照明负载传递的功率量的补偿量，使得增加的功率量等于 当不存在调光器时由功率转换器传递的功率量。

公开(公告)号：US20130141001A1

公开(公告)日：2013-06-06

申请号：US13636165

申请日：2011-03-11

申请人： Michael Datta ,  Gregory Campbell

发明人： Michael Datta ,  Gregory Campbell

IPC分类号： H05B37/02

CPC分类号： H05B37/02 ,  H05B33/0809 ,  H05B33/0845

摘要： A system for controlling a level of light output by a solid state lighting load controlled by a dimmer includes a phase angle detector and a power converter. The phase angle detector is configured to detect a phase angle of the dimmer based on a rectified voltage from the dimmer and to determine a power control signal based on comparison of the detected phase angle with a predetermined first threshold. The power converter is configured to provide an output voltage to the solid state lighting load, the power converter operating in an open loop mode based on the rectified voltage from the dimmer when the detected phase angle is greater than the first threshold, and operating in a closed loop mode based on the rectified voltage from the dimmer and the determined power control signal from the detection circuit when the detected phase angle is less than the first threshold.

摘要翻译： 用于通过由调光器控制的固态照明负载来控制光输出电平的系统包括相位角检测器和功率转换器。 相位角检测器被配置为基于来自调光器的整流电压来检测调光器的相位角，并且基于检测到的相位角与预定的第一阈值的比较来确定功率控制信号。 功率转换器被配置为向固态照明负载提供输出电压，当检测到的相位角大于第一阈值时，功率转换器基于来自调光器的整流电压以开环模式工作，并且在 当检测到的相位角小于第一阈值时，基于来自调光器的整流电压的闭环模式和来自检测电路的确定的功率控制信号。