公开(公告)号：US20140368204A1

公开(公告)日：2014-12-18

申请号：US14373227

申请日：2013-01-21

Applicant: OSRAM SYLVANIA INC.

Inventor： Bernhard Siessegger ,  Marijan Kostrun

IPC: H05B33/08 ,  G01R31/40 ,  G01R31/26 ,  G01R31/44

CPC classification number: H02M7/06 ,  G01R31/028 ,  G01R31/2633 ,  G01R31/2635 ,  G01R31/40 ,  G01R31/44 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/156 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2924/12032 ,  H01L2924/12044 ,  H01L2924/1301 ,  H01L2924/13033 ,  H01L2924/1305 ,  H01L2924/13091 ,  H05B33/0803 ,  H05B33/0806 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/086 ,  H05B33/0884 ,  H05B33/0893 ,  H05B37/02 ,  H05B37/0209 ,  H05B41/39 ,  Y02B20/343 ,  Y02B20/345 ,  Y02B20/346 ,  Y02B20/347 ,  Y10T307/615 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Techniques are disclosed for assessing the conditions of LEDs and power supplies of solid state lighting systems. The techniques can be used, for example, to measure the capacitance of an output capacitor C in a switch-mode power supply (SMPS), and to measure the condition of the LEDs being driven by that power supply. In some cases, this assessment can be implemented in a lighting controller that controls the lighting system, which may be configured to simultaneously determine C and the conditions of LEDs. In one example case, the techniques can be implemented, for instance, in a micro-controller operating the lighting system. A lighting system implementing the techniques can be periodically assessed so as to provide real-time diagnostic capability. Numerous example embodiments of SMPS LED lighting systems will be apparent in light of this disclosure.

Abstract translation: 公开了用于评估固态照明系统的LED和电源的条件的技术。 例如，可以使用这些技术来测量开关模式电源（SMPS）中的输出电容器C的电容，并且测量由该电源驱动的LED的状态。 在某些情况下，该评估可以在控制照明系统的照明控制器中实现，照明系统可被配置为同时确定C和LED的状况。 在一个示例的情况下，技术可以例如在操作照明系统的微控制器中实现。 可以周期性地评估实施这些技术的照明系统，以提供实时诊断能力。 根据本公开，SMPS LED照明系统的许多示例性实施例将是显而易见的。

公开(公告)号：US20140361696A1

公开(公告)日：2014-12-11

申请号：US14372941

申请日：2013-01-22

Applicant: OSRAM SYLVANIA INC.

Inventor： Bernhard Siessegger ,  Marijan Kostrun

IPC: H05B33/08

CPC classification number: H02M7/06 ,  G01R31/028 ,  G01R31/2633 ,  G01R31/2635 ,  G01R31/40 ,  G01R31/44 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/156 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2924/12032 ,  H01L2924/12044 ,  H01L2924/1301 ,  H01L2924/13033 ,  H01L2924/1305 ,  H01L2924/13091 ,  H05B33/0803 ,  H05B33/0806 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/086 ,  H05B33/0884 ,  H05B33/0893 ,  H05B37/02 ,  H05B37/0209 ,  H05B41/39 ,  Y02B20/343 ,  Y02B20/345 ,  Y02B20/346 ,  Y02B20/347 ,  Y10T307/615 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Solid state lighting systems are disclosed for providing uniform brightness of LEDs serially connected in a string. In some embodiments, the LEDs can be powered directly from the mains such that no switch-mode power supply or the output storage elements associated therewith are needed. In some such cases, a linear regulator and switches can be used to control the current through the LEDs to provide uniform brightness. Other embodiments can be used with a switch-mode based driver topology and/or storage elements coupled in parallel with clusters of the LEDs. In any such cases, control logic (e.g., microcontroller or other suitable controller) can be used to control the switches accordingly to provide uniform brightness, and in some cases, to mitigate the implications of having no SMPS output storage element. In some embodiments, the switching pattern provided by the control logic is random, although other switching patterns can be used.

Abstract translation: 公开了固态照明系统，用于提供串联连接在串中的LED的均匀亮度。 在一些实施例中，LED可以直接从电源供电，使得不需要开关模式电源或与其相关联的输出存储元件。 在一些这种情况下，可以使用线性调节器和开关来控制通过LED的电流以提供均匀的亮度。 其他实施例可以与基于开关模式的驱动器拓扑结构和/或与LED的集群并联耦合的存储元件一起使用。 在任何这种情况下，可以使用控制逻辑（例如，微控制器或其它合适的控制器）来相应地控制开关以提供均匀的亮度，并且在一些情况下，可以减轻没有SMPS输出存储元件的影响。 在一些实施例中，由控制逻辑提供的切换模式是随机的，尽管可以使用其他切换模式。

公开(公告)号：US09998026B2

公开(公告)日：2018-06-12

申请号：US14373227

申请日：2013-01-21

Applicant: OSRAM SYLVANIA INC. ,  Bernhard Siessegger ,  Marijan Kostrun

Inventor： Bernhard Siessegger ,  Marijan Kostrun

IPC: G01R31/44 ,  H02M7/06 ,  H05B37/02 ,  H05B33/08 ,  H01L25/16 ,  H05B41/39 ,  H01L27/15 ,  H01L33/62 ,  H01L25/075 ,  G01R31/26 ,  G01R31/40 ,  G01R31/02

CPC classification number: H02M7/06 ,  G01R31/028 ,  G01R31/2633 ,  G01R31/2635 ,  G01R31/40 ,  G01R31/44 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/156 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2924/12032 ,  H01L2924/12044 ,  H01L2924/1301 ,  H01L2924/13033 ,  H01L2924/1305 ,  H01L2924/13091 ,  H05B33/0803 ,  H05B33/0806 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/086 ,  H05B33/0884 ,  H05B33/0893 ,  H05B37/02 ,  H05B37/0209 ,  H05B41/39 ,  Y02B20/343 ,  Y02B20/345 ,  Y02B20/346 ,  Y02B20/347 ,  Y10T307/615 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Techniques are disclosed for assessing the conditions of LEDs and power supplies of solid state lighting systems. The techniques can be used, for example, to measure the capacitance of an output capacitor C in a switch-mode power supply (SMPS), and to measure the condition of the LEDs being driven by that power supply. In some cases, this assessment can be implemented in a lighting controller that controls the lighting system, which may be configured to simultaneously determine C and the conditions of LEDs. In one example case, the techniques can be implemented, for instance, in a micro-controller operating the lighting system. A lighting system implementing the techniques can be periodically assessed so as to provide real-time diagnostic capability. Numerous example embodiments of SMPS LED lighting systems will be apparent in light of this disclosure.