High-pressure discharge lamp having a pulse starting device, and operating method for a high pressure discharge lamp
    3.
    发明申请
    High-pressure discharge lamp having a pulse starting device, and operating method for a high pressure discharge lamp 失效
    具有脉冲启动装置的高压放电灯和高压放电灯的操作方法

    公开(公告)号:US20060108942A1

    公开(公告)日:2006-05-25

    申请号:US11272085

    申请日:2005-11-14

    IPC分类号: H05B39/00

    摘要: The invention relates to a high-pressure discharge lamp having electrodes arranged inside a discharge vessel which define a discharge path of a gas discharge in the discharge vessel, and having a starting device, arranged inside the lamp base for the high-pressure discharge lamp and designed as a pulse starting device, for starting the gas discharge in the discharge vessel, and having, arranged outside its discharge vessel, an auxiliary starting electrode coupled to the pulse starting device, the voltage input of pulse starting device being connected in parallel with the discharge path of the high-pressure discharge lamp, such that according to the invention the voltage across the discharge path serves as supply voltage for the pulse starting device. Also disclosed is an operating method for such a high-pressure discharge lamp.

    摘要翻译: 本发明涉及一种高压放电灯,其具有布置在放电容器内的电极,其限定放电容器中的气体放电的放电路径,并且具有布置在用于高压放电灯的灯底部内部的起动装置, 设计为脉冲启动装置,用于启动放电容器中的气体放电,并且在其放电容器外部布置有与脉冲启动装置耦合的辅助启动电极,脉冲启动装置的电压输入与 高压放电灯的放电路径,使得根据本发明,放电路径两端的电压用作脉冲启动装置的电源电压。 还公开了这种高压放电灯的操作方法。

    Dynamic control of switching frequency in a switch mode power converter

    公开(公告)号:US10185295B2

    公开(公告)日:2019-01-22

    申请号:US14870090

    申请日:2015-09-30

    IPC分类号: H02J3/12 G05B15/02 H02M1/00

    摘要: A controller dynamically identifies a switching frequency based power converter output load condition, input voltage, and/or temperature. The controller updates the operating switching frequency to the identified target switching frequency when the identified switching frequency is sufficiently different than a current operating switching frequency of the power converter. In this respect, switching frequency may be dynamically controlled to strike a balance between avoiding saturation of inductive elements and efficient operation of a power converter. A controller may also dynamically control switching frequency by having a thermo resistor incorporated into circuitry that determines switching frequency such that an increase in temperature beyond the threshold temperature directly causes a decrease in switching frequency.

    DEVICE AND SYSTEM FOR MEASURING FLICKER
    6.
    发明申请

    公开(公告)号:US20180348051A1

    公开(公告)日:2018-12-06

    申请号:US15613311

    申请日:2017-06-05

    IPC分类号: G01J1/44

    摘要: Techniques are disclosed for measuring an amount of flicker produced by a light source. In one embodiment, a flicker measuring device includes a photo sensor to measure the amount of light produced by the light source, a dedicated processor to receive and process data from the photo sensor, a memory bus coupled to an analog-to-digital converter (ADC) and to a first memory, and a direct memory access (DMA) bus coupled to the ADC and to a second memory. In another embodiment, a flicker measuring system uses a light sensor, an associated circuit and a portable computing device (PCD), such as a smart phone, to measure an amount of flicker produced by a light source by sending an electrical signal from the light source and associated circuit via an audio output to an audio sub-system of the PCD, so that the PCD may calculate the flicker value.

    Power line communication for lighting systems

    公开(公告)号:US09408258B2

    公开(公告)日:2016-08-02

    申请号:US14062496

    申请日:2013-10-24

    IPC分类号: H05B33/08 H04B3/54

    摘要: Techniques are provided for bi-directional communication between a power supply and one or more light engines (and/or other lighting system components) via the existing power lines so that no additional communication wires are needed. In particular, the power supply can transmit information by modulating its output (voltage or current) and the light engine (or other lighting componentry, such as a sensor) can communicate back by modulating how much power it draws from the power supply. Any suitable type of modulation scheme can be used, and a master-slave arrangement can be used to control the bi-directional communication if so desired, so as to avoid multiple devices communicating over the power line communication channel at the same time. Other embodiments allow a multiple simultaneous communications over the power line communication channel.

    HUMAN PRESENCE DETECTION COMMISSIONING TECHNIQUES
    9.
    发明申请
    HUMAN PRESENCE DETECTION COMMISSIONING TECHNIQUES 审中-公开
    人类存在检测调试技术

    公开(公告)号:US20160202678A1

    公开(公告)日:2016-07-14

    申请号:US15078980

    申请日:2016-03-23

    IPC分类号: G05B15/02 G01V8/10 H04N5/33

    摘要: Techniques are disclosed for detecting stationary presence using IR sensor array. A number of IR images may be captured. Of the IR images captured by the IR sensor array certain pixels can be identified as causing false triggers. These pixels can be identified and filtered to be ignored. The non-filtered pixels of IR images may be averaged over various time intervals to calculate a number of average IR frames. The difference between these average IR frames provides a delta frame. A mask frame may be calculated as the summation of delta frames over time, and the value of the mask frame may be used to detect a stationary human presence even when no delta value is calculated. Alternatively, the mask frame may be used to calculate a background frame that represents the IR signature of stationary or cyclical objects within the scanned area that are not intended to trigger the presence detection system. A stationary presence may be determined by subtracting the background frame from a current average IR frame.

    摘要翻译: 公开了用于使用IR传感器阵列检测静态存在的技术。 可以捕获多个IR图像。 在IR传感器阵列捕获的IR图像中,某些像素可能会被识别为导致假触发。 可以识别和过滤这些像素以被忽略。 IR图像的未经滤波的像素可以在各种时间间隔上进行平均以计算平均IR帧的数量。 这些平均IR帧之间的差异提供了三角形帧。 可以将掩模帧计算为随时间的增量帧的总和,并且即使没有计算delta值,也可以使用掩码帧的值来检测静止的人的存在。 或者,掩模框可以用于计算表示扫描区域内的不旨在触发存在检测系统的静止或循环对象的IR签名的背景帧。 可以通过从当前平均IR帧减去背景帧来确定静止存在。

    MULTIPLE PANEL LUMINAIRES FOR LIGHT-BASED COMMUNICATION
    10.
    发明申请
    MULTIPLE PANEL LUMINAIRES FOR LIGHT-BASED COMMUNICATION 有权
    用于轻型通信的多个面板灯

    公开(公告)号:US20150280829A1

    公开(公告)日:2015-10-01

    申请号:US14575493

    申请日:2014-12-18

    摘要: Multiple panel luminaires for light-based communication (LCom) and related techniques of use are disclosed. Each luminaire panel may comprise at least one solid-state light source, where the light sources are configured to output light. The luminaire may also include at least one modulator configured to modulate the light output of the light sources to allow for emission of LCom signals. The luminaire may also include a controller configured to synchronize timing of the LCom signals. In some cases, one panel may be configured to emit an LCom signal that is the inverse or duplicate of the LCom signal emitted from another panel. Panel signal inversion may be used to maintain a relatively constant level of light output from the luminaire and/or to create a virtual fiducial to provide orientation information. Using a multiple panel luminaire to transmit data may also result in improved data transmission rates and transmission reliability.

    摘要翻译: 公开了用于光通信的多面板灯具(LCom)和相关的使用技术。 每个灯具面板可以包括至少一个固态光源,其中光源被配置为输出光。 照明器还可以包括至少一个调制器,其配置成调制光源的光输出以允许发射LCom信号。 照明器还可以包括被配置为同步LCom信号的定时的控制器。 在一些情况下,一个面板可以被配置为发射LCom信号,其是从另一个面板发射的LCom信号的反向或重复的。 面板信号反转可用于维持来自照明器的相对恒定的光输出水平和/或创建虚拟基准以提供取向信息。 使用多面板照明器传输数据也可能导致数据传输速率和传输可靠性的提高。