Asymmetric end-of-life protection circuit for fluorescent lamp ballasts
    1.
    发明授权
    Asymmetric end-of-life protection circuit for fluorescent lamp ballasts 有权
    荧光灯镇流器不对称寿命保护电路

    公开(公告)号:US08564216B1

    公开(公告)日:2013-10-22

    申请号:US13019766

    申请日:2011-02-02

    IPC分类号: H05B37/02

    CPC分类号: H05B41/2985

    摘要: An asymmetric end-of-life protection circuit with single-point voltage measurement is provided for an electronic ballast having two lamp connection terminals. A grounding circuit includes a capacitor and a first resistor coupled in parallel between a first lamp connection terminal and ground, and is effective to drain the second lamp connection terminal to ground. A lamp voltage detection circuit is coupled between the first lamp connection terminal and ground and measures the lamp voltage from the first lamp connection terminal. A controller is effective to shut down the ballast based on an output signal from the lamp voltage detection circuit being greater than a first predetermined threshold value or less than a second predetermined threshold value.

    摘要翻译: 为具有两个灯连接端子的电子镇流器提供了具有单点电压测量的非对称寿命保护电路。 接地电路包括在第一灯连接端子和地之间并联耦合的电容器和第一电阻器,并且有效地将第二灯连接端子排到地。 灯电压检测电路耦合在第一灯连接端子和地之间,并测量来自第一灯连接端子的灯电压。 控制器基于来自灯电压检测电路的输出信号大于第一预定阈值或小于第二预定阈值来关闭镇流器。

    Electronic ballast with protected analog dimming control interface
    2.
    发明授权
    Electronic ballast with protected analog dimming control interface 有权
    电子镇流器带有受保护的模拟调光控制接口

    公开(公告)号:US08654485B1

    公开(公告)日:2014-02-18

    申请号:US13076888

    申请日:2011-03-31

    申请人: James Koehler

    发明人: James Koehler

    CPC分类号: H05B37/0254 H05B37/0245

    摘要: A control signal interface circuit includes a line voltage protection circuit coupled to first and second input terminals. The protection circuit provides an input DC voltage across the input terminals within a predetermined range (i.e., 0-10 Vdc) and prevents the application of an input line voltage (i.e., 347 Vac) across the input terminals. A first current source circuit is coupled to the protection circuit, an isolation circuit is coupled to the first current source circuit and a second current source circuit is coupled to the isolation circuit. The first and second current source circuits collectively provide a linear output DC voltage with respect to the input DC voltage. At least one of the first and second current source circuits include circuitry wherein the linear conversion of the input DC voltage to the output DC voltage is independent of the temperature.

    摘要翻译: 控制信号接口电路包括耦合到第一和第二输入端的线路电压保护电路。 保护电路在预定范围内(即0-10Vdc)的输入端提供输入DC电压,并且防止在输入端子上施加输入线电压(即347Vac)。 第一电流源电路耦合到保护电路,隔离电路耦合到第一电流源电路,第二电流源电路耦合到隔离电路。 第一和第二电流源电路相对于输入的DC电压共同提供线性输出DC电压。 第一和第二电流源电路中的至少一个包括其中输入DC电压到输出DC电压的线性转换与温度无关的电路。

    Method and Apparatus for Automated Impact Analysis
    3.
    发明申请
    Method and Apparatus for Automated Impact Analysis 审中-公开
    自动影响分析方法与装置

    公开(公告)号:US20130091007A1

    公开(公告)日:2013-04-11

    申请号:US13253514

    申请日:2011-10-05

    IPC分类号: G06Q30/02

    CPC分类号: G06Q30/02

    摘要: A method and system for automatically analyzing the impact of a treatment of interest is disclosed. Data related to a treatment of interest and a population including a treated group and a non-treated group is received. Propensity scores are estimated for the treated group and the non-treated group. Subgroups of the treated group and the non-treated group are matched based on the propensity scores. An outcome model is generated for each subgroup of the non-treated group, and an impact of the treatment on the treated group is generated for each subgroup of the treated group using the outcome model generated for the matching subgroup of the control group. Outcome models may be generated for the treated group and the non-treated group, and an impact of the treatment on the population may be generated based on the propensity scores and the outcome models for the test group and the non-treated group.

    摘要翻译: 公开了一种自动分析感兴趣的治疗效果的方法和系统。 接收与感兴趣的治疗有关的数据和包括治疗组和未治疗组的群体。 估计治疗组和未治疗组的倾向评分。 治疗组和未治疗组的亚组根据倾向得分进行匹配。 对未治疗组的每个亚组产生结果模型,并且使用为对照组的匹配亚组生成的结果模型,对治疗组的每个亚组产生治疗对治疗组的影响。 可能对治疗组和未治疗组产生结果模型,并且可以基于测试组和未治疗组的倾向评分和结果模型来产生治疗对群体的影响。

    System and method for encoding ballast control signals
    4.
    发明授权
    System and method for encoding ballast control signals 有权
    用于编码镇流器控制信号的系统和方法

    公开(公告)号:US08405488B1

    公开(公告)日:2013-03-26

    申请号:US12582532

    申请日:2009-10-20

    IPC分类号: G05B11/01 H05B41/16 H05B37/02

    摘要: A system and method is provided for encoding and decoding control signals to an electronic ballast. An encoding circuit is effective to transmit encoded control signals across an AC power line comprising patterns of energy bursts at zero crossings of an AC signal. Eight zero crossings define a set, five specific patterns of energy bursts within a set define distinct symbols, each defined symbol selected such that a Hamming distance between each symbol is greater than three. Four symbols correspond to a first logic condition and one symbol corresponds to a second logic condition. Each received symbol is sequentially associated with a distinct control channel having one or more control parameters. A receiving circuit in the ballast is effective to decode symbols with single-bit error correction by comparing received symbols to defined symbols and determining which symbol is a smallest Hamming distance from a received symbol.

    摘要翻译: 提供了一种用于将控制信号编码和解码到电子镇流器的系统和方法。 编码电路有效地跨AC交流电源线发送编码的控制信号,该交流电源线包括交流信号的零交叉处的能量脉冲串的模式。 八个过零点定义一组,集合内的五个特定能量突发模式定义不同的符号,每个定义的符号被选择,使得每个符号之间的汉明距离大于三。 四个符号对应于第一逻辑条件,一个符号对应于第二逻辑条件。 每个接收到的符号与具有一个或多个控制参数的不同控制信道顺序相关联。 镇流器中的接收电路通过将接收的符号与定义的符号进行比较并确定哪个符号是从接收到的符号的最小汉明距离来解码具有单位错误校正的符号是有效的。

    Tension-controlled web processing machine and method
    5.
    发明授权
    Tension-controlled web processing machine and method 失效
    张力控制网处理机及方法

    公开(公告)号:US07926688B2

    公开(公告)日:2011-04-19

    申请号:US11208636

    申请日:2005-08-23

    摘要: A web processing assembly including first, second and third fixed spaced apart pairs of nip rollers moving the web respectively at a first, second and third speeds, the first and third speeds being constant and similar, the second speed being variable with a mean speed similar to the first and third speeds, a first idler roller engaging the web between the first and second pair of rollers and a second idler roller engaging the web between the second and third pair of rollers, each idler roller maintaining the web in constant tension by moving along a restrained path perpendicular to its axis to compensate for a difference between the variable second speed and the respective one of the constant first and third speeds. A method for processing a web and system for conveying a web are also disclosed.

    摘要翻译: 一种幅材处理组件,包括第一,第二和第三固定间隔开的成对的夹持辊,分别以第一,第二和第三速度分别移动幅材,第一和第三速度是恒定的和类似的,第二速度可以以相同的速度变化 在第一和第三速度下,第一惰轮与第一和第二对辊之间的腹板接合,以及在第二和第三对辊之间接合腹板的第二空转辊,每个惰轮通过移动来保持腹板的恒定张力 沿着与其轴线垂直的约束路径来补偿可变第二速度与恒定的第一和第三速度中的相应一个之间的差。 还公开了一种用于处理幅材和用于输送幅材的系统的方法。

    Tension-controlled web processing machine and method
    6.
    发明申请
    Tension-controlled web processing machine and method 失效
    张力控制网处理机及方法

    公开(公告)号:US20070051218A1

    公开(公告)日:2007-03-08

    申请号:US11208636

    申请日:2005-08-23

    IPC分类号: B23D19/00

    摘要: A web processing assembly including first, second and third fixed spaced apart pairs of nip rollers moving the web respectively at a first, second and third speeds, the first and third speeds being constant and similar, the second speed being variable with a mean speed similar to the first and third speeds, a first idler roller engaging the web between the first and second pair of rollers and a second idler roller engaging the web between the second and third pair of rollers, each idler roller maintaining the web in constant tension by moving along a restrained path perpendicular to its axis to compensate for a difference between the variable second speed and the respective one of the constant first and third speeds. A method for processing a web and system for conveying a web are also disclosed.

    摘要翻译: 一种幅材处理组件,包括第一,第二和第三固定间隔开的成对的夹持辊,分别以第一,第二和第三速度分别移动幅材,第一和第三速度是恒定的和类似的,第二速度可以以相同的速度变化 在第一和第三速度下,第一惰轮与第一和第二对辊之间的腹板接合,以及在第二和第三对辊之间接合腹板的第二空转辊,每个惰轮通过移动来保持腹板的恒定张力 沿着与其轴线垂直的约束路径来补偿可变第二速度与恒定的第一和第三速度中的相应一个之间的差。 还公开了一种用于处理幅材和用于输送幅材的系统的方法。

    SYSTEM AND METHOD FOR POWER LINE CARRIER COMMUNICATION USING HIGH FREQUENCY TONE BURSTS
    7.
    发明申请
    SYSTEM AND METHOD FOR POWER LINE CARRIER COMMUNICATION USING HIGH FREQUENCY TONE BURSTS 有权
    电力线载波通信的系统和方法,使用高频音调

    公开(公告)号:US20080278295A1

    公开(公告)日:2008-11-13

    申请号:US11945870

    申请日:2007-11-27

    IPC分类号: G05B11/01

    摘要: A communication system and method is utilized to communicate data over an AC power line. Tone burst are superimposed on an AC power signal at predetermined voltage reference levels or at predetermined phase angles to represent bit values. These bit values are represented by either the presence or the absence of the tone burst on the AC power signal. In this manner, control information can be communicated to an apparatus, such as a ballast for a gas discharge lamp.

    摘要翻译: 通信系统和方法用于通过AC电力线传送数据。 音调脉冲串以预定的电压基准电平或预定相位角叠加在交流电源信号上以表示位值。 这些位值由交流电源信号上的音调突发的存在或不存在表示。 以这种方式,可以将控制信息传送到诸如用于气体放电灯的镇流器的装置。

    System and method for power line carrier communication using high frequency tone bursts
    8.
    发明授权
    System and method for power line carrier communication using high frequency tone bursts 有权
    使用高频音频突发的电力线载波通信的系统和方法

    公开(公告)号:US07843145B2

    公开(公告)日:2010-11-30

    申请号:US11945870

    申请日:2007-11-27

    IPC分类号: H05B37/02

    摘要: A communication system and method is utilized to communicate data over an AC power line. Tone burst are superimposed on an AC power signal at predetermined voltage reference levels or at predetermined phase angles to represent bit values. These bit values are represented by either the presence or the absence of the tone burst on the AC power signal. In this manner, control information can be communicated to an apparatus, such as a ballast for a gas discharge lamp.

    摘要翻译: 通信系统和方法用于通过AC电力线传送数据。 音调脉冲串以预定的电压基准电平或预定相位角叠加在交流电源信号上以表示位值。 这些位值由交流电源信号上的音调突发的存在或不存在表示。 以这种方式,可以将控制信息传送到诸如用于气体放电灯的镇流器的装置。