公开(公告)号：US20120181944A1

公开(公告)日：2012-07-19

申请号：US13496947

申请日：2010-09-01

申请人： Joseph Hendrik Ann Maria Jacobs ,  Michael Datta

发明人： Joseph Hendrik Ann Maria Jacobs ,  Michael Datta

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0845 ,  Y02B20/346 ,  Y02B20/383

摘要： Disclosed are devices and related methods for optimally extending the range of light output of solid-state light sources, particularly at minimum light levels, through a power converter that includes a phase detector, a processing unit and a switch. The phase detector is configured to receive a voltage signal and to detect rising edges of waveforms of the voltage signal. The processing unit is configured to initiate a predetermined shutdown period in response to each detected rising edge. The switch is configured to provide a control signal that deactivates the power converter during the shutdown period, preventing the power converter from providing power to the solid state light unit during the shutdown period.

摘要翻译： 公开了通过包括相位检测器，处理单元和开关的功率转换器来最佳地扩展固态光源的光输出范围的装置和相关方法，特别是在最小光水平。 相位检测器被配置为接收电压信号并检测电压信号的波形的上升沿。 处理单元被配置为响应于每个检测到的上升沿而启动预定的关闭时段。 该开关被配置为提供一个控制信号，在停机期间停止功率转换器，防止功率转换器在关闭期间向固态光单元供电。

公开(公告)号：US20130106298A1

公开(公告)日：2013-05-02

申请号：US13634956

申请日：2011-03-01

申请人： Michael Datta ,  Gregory Campbell ,  Mark Rabiner

发明人： Michael Datta ,  Gregory Campbell ,  Mark Rabiner

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  H05B33/0824 ,  H05B37/02

摘要： A device for controlling levels of light output by a solid state lighting load at low dimming levels includes a bleed circuit connected in parallel with the solid state lighting load. The bleed circuit includes a resistor and a transistor connected in series, the transistor being configured to turn on and off in accordance with a duty cycle of a digital control signal when a dimming level set by a dimmer is less than a predetermined first threshold, decreasing an effective resistance of the bleed circuit as the dimming level decreases.

摘要翻译： 用于在低调光水平下控制由固态照明负载输出的光的水平的装置包括与固态照明负载并联连接的放电电路。 放电电路包括串联连接的电阻器和晶体管，所述晶体管被配置为当由调光器设置的调光电平小于预定的第一阈值时根据数字控制信号的占空比导通和关断，减小 当调光水平降低时，放电电路的有效电阻。

公开(公告)号：US09572215B2

公开(公告)日：2017-02-14

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 ,  G05F5/02 ,  H05B39/04 ,  H05B41/24 ,  H05B33/08

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：US09066394B2

公开(公告)日：2015-06-23

申请号：US13496947

申请日：2010-09-01

申请人： Joseph Hendrik Anna Maria Jacobs ,  Michael Datta

发明人： Joseph Hendrik Anna Maria Jacobs ,  Michael Datta

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0845 ,  Y02B20/346 ,  Y02B20/383

摘要： Disclosed are devices and related methods for optimally extending the range of light output of solid-state light sources, particularly at minimum light levels, through a power converter that includes a phase detector, a processing unit and a switch. The phase detector is configured to receive a voltage signal and to detect rising edges of waveforms of the voltage signal. The processing unit is configured to initiate a predetermined shutdown period in response to each detected rising edge. The switch is configured to provide a control signal that deactivates the power converter during the shutdown period, preventing the power converter from providing power to the solid state light unit during the shutdown period.

摘要翻译： 公开了通过包括相位检测器，处理单元和开关的功率转换器来最佳地扩展固态光源的光输出范围的装置和相关方法，特别是在最小光水平。 相位检测器被配置为接收电压信号并检测电压信号的波形的上升沿。 处理单元被配置为响应于每个检测到的上升沿而启动预定的关闭时段。 该开关被配置为提供一个控制信号，在停机期间停止功率转换器，防止功率转换器在关闭期间向固态光单元供电。

公开(公告)号：US20130033193A1

公开(公告)日：2013-02-07

申请号：US13641982

申请日：2011-04-22

申请人： Michael Datta

发明人： Michael Datta

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0845

摘要： A method is provided for controlling a power converter (220) to provide a uniform dimming range to a solid state lighting load (240) independent of a type of dimmer. The method includes detecting maximum and minimum phase angles of a dimmer (204) connected to the power converter (220) during operation of the solid state lighting load (240), and dynamically adjusting an output power of the power converter based on the detected maximum and minimum phase angles of the dimmer. The adjusted output power of the power converter adjusts a high end level of light output by the solid state lighting load at the maximum phase angle to match a predetermined high end value and adjusts a low end level of light output by the solid state lighting load at the minimum phase angle to match a predetermined low end value.

摘要翻译： 提供了一种用于控制功率转换器（220）以独立于调光器类型向固态照明负载（240）提供均匀调光范围的方法。 该方法包括在固态照明负载（240）的操作期间检测连接到功率转换器（220）的调光器（204）的最大和最小相位角，并且基于检测到的最大值动态地调整功率转换器的输出功率 和最小相位角的调光器。 功率转换器的调整后的输出功率通过最大相位角的固态照明负载来调节高端的光输出量，以匹配预定的高端值，并且调整由固态照明负载输出的低端光输出 最小相位角匹配预定的低端值。

公开(公告)号：US20120235585A1

公开(公告)日：2012-09-20

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： H05B37/02 ,  G06F19/00

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：US20100207534A1

公开(公告)日：2010-08-19

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：US09456486B2

公开(公告)日：2016-09-27

申请号：US13634956

申请日：2011-03-01

申请人： Michael Datta ,  Gregory Campbell ,  Mark Rabiner

发明人： Michael Datta ,  Gregory Campbell ,  Mark Rabiner

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  H05B33/0824 ,  H05B37/02

摘要： A device for controlling levels of light output by a solid state lighting load at low dimming levels includes a bleed circuit connected in parallel with the solid state lighting load. The bleed circuit includes a resistor and a transistor connected in series, the transistor being configured to turn on and off in accordance with a duty cycle of a digital control signal when a dimming level set by a dimmer is less than a predetermined first threshold, decreasing an effective resistance of the bleed circuit as the dimming level decreases.

摘要翻译： 用于在低调光水平下控制由固态照明负载输出的光的水平的装置包括与固态照明负载并联连接的放电电路。 放电电路包括串联连接的电阻器和晶体管，所述晶体管被配置为当由调光器设置的调光电平小于预定的第一阈值时根据数字控制信号的占空比导通和关断，减小 当调光水平降低时，放电电路的有效电阻。

公开(公告)号：US08937434B2

公开(公告)日：2015-01-20

申请号：US13641982

申请日：2011-04-22

申请人： Michael Datta

发明人： Michael Datta

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0845

摘要： A method is provided for controlling a power converter (220) to provide a uniform dimming range to a solid state lighting load (240) independent of a type of dimmer. The method includes detecting maximum and minimum phase angles of a dimmer (204) connected to the power converter (220) during operation of the solid state lighting load (240), and dynamically adjusting an output power of the power converter based on the detected maximum and minimum phase angles of the dimmer. The adjusted output power of the power converter adjusts a high end level of light output by the solid state lighting load at the maximum phase angle to match a predetermined high end value and adjusts a low end level of light output by the solid state lighting load at the minimum phase angle to match a predetermined low end value.

摘要翻译： 提供了一种用于控制功率转换器（220）以独立于调光器类型向固态照明负载（240）提供均匀调光范围的方法。 该方法包括在固态照明负载（240）的操作期间检测连接到功率转换器（220）的调光器（204）的最大和最小相位角，并且基于检测到的最大值动态地调整功率转换器的输出功率 和最小相位角的调光器。 功率转换器的调整后的输出功率通过最大相位角的固态照明负载来调节高端的光输出量，以匹配预定的高端值，并且调整由固态照明负载输出的低端光输出 最小相位角匹配预定的低端值。

公开(公告)号：US08736197B2

公开(公告)日：2014-05-27

申请号：US12681631

申请日：2008-10-08

申请人： Michael Datta ,  Ihor Lys

发明人： Michael Datta ,  Ihor Lys

IPC分类号： H05B37/02

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

摘要： A lighting apparatus (100) includes one or more first LEDs (202) for generating a first spectrum of radiation (503), and one or more second LEDs (204) for generating a second different spectrum radiation (505). The first and second LEDs are electrically connected in series between a first node (516A) and a second node (516B), between which a series current (550) flows with the application of an operating voltage (516) across the nodes. A controllable current path (518) is connected in parallel with one or both of the first and second LEDs so as to at least partially divert the series current, such that a first current (552) through the first LED(s) and a second current (554) through the second LED(s) are different. Such current diversion techniques may be employed to compensate for shifts in color or color temperature of generated light during thermal transients, due to different temperature-dependent current-to-flux relationships for different types of LEDs.

摘要翻译： 照明装置（100）包括用于产生第一辐射光谱（503）的一个或多个第一LED（202）和用于产生第二不同光谱辐射（505）的一个或多个第二LED（204）。 第一和第二LED串联电连接在第一节点（516A）和第二节点（516B）之间，串联电流（550）流过跨越节点的工作电压（516）流动。 可控电流路径（518）与第一和第二LED中的一个或两个并联连接，以至少部分地转移串联电流，使得通过第一LED的第一电流（552）和第二LED 通过第二LED的电流（554）是不同的。 由于不同类型的LED的不同的温度依赖的电流 - 通量关系，可以采用这种电流分流技术来补偿在热瞬态期间所产生的光的颜色或色温的变化。