Power line dimming controller and receiver
    11.
    发明授权
    Power line dimming controller and receiver 有权
    电源线调光控制器和接收器

    公开(公告)号:US08350678B1

    公开(公告)日:2013-01-08

    申请号:US12394761

    申请日:2009-02-27

    IPC分类号: G05B11/01

    摘要: A power line communication system transmits a dimming level to an electronic ballast to regulate the power consumed by a lamp. The power line controller has a notch generation circuit that generates notches on an AC power signal with a time duration in accordance with the dimming level of the lamp. A dimming interface associated with the electronic ballast detects the notches on the AC power signal. The dimming interface generates a ballast dimming level signal with a signal level related to the time duration of these notches.

    摘要翻译: 电力线通信系统将调光电平传送到电子镇流器以调节灯消耗的功率。 电源线控制器具有陷波产生电路,其根据灯的调光电平在具有持续时间的AC电力信号上产生陷波。 与电子镇流器相关联的调光接口检测交流电源信号上的缺口。 调光接口产生具有与这些凹口的持续时间相关的信号电平的镇流器调光电平信号。

    Lamp preheat circuit for a program start ballast with filament voltage cut-back in steady state
    12.
    发明授权
    Lamp preheat circuit for a program start ballast with filament voltage cut-back in steady state 有权
    灯预热电路用于程序启动镇流器,灯丝电压切断稳定

    公开(公告)号:US08288956B1

    公开(公告)日:2012-10-16

    申请号:US12753392

    申请日:2010-04-02

    CPC分类号: H05B41/295

    摘要: A circuit for preheating filaments in lamps powered by an electronic ballast includes an inverter tank circuit and a preheat tank circuit. The preheat tank circuit has a preheat capacitor connected in parallel with a primary winding of a filament preheat transformer. A cut-back capacitor is connected between the preheat tank circuit and circuit ground. The filament preheat transformer has secondary windings coupled to the first and second lamp terminals to provide a filament preheat voltage. The inverter operates at a preheat frequency during a lamp preheat mode and at a steady-state frequency during a lamp steady-state mode, the steady-state frequency being lower than the preheat frequency. The preheat tank circuit has a natural resonant frequency that is approximately the same as the preheat frequency so that when the ballast is operating in the steady state mode, the filament voltage is substantially lower than when the ballast is operating in the preheat mode.

    摘要翻译: 用于通过电子镇流器供电的灯预热灯的电路包括逆变器箱电路和预热箱电路。 预热箱电路具有与灯丝预热变压器的初级绕组并联连接的预热电容器。 在预热箱电路和电路接地之间连接有一个截止电容。 灯丝预热变压器具有耦合到第一和第二灯端子的次级绕组以提供灯丝预热电压。 在灯预热模式下,逆变器工作在预热频率,在灯稳态模式下处于稳态频率,稳态频率低于预热频率。 预热槽电路具有与预热频率大致相同的固有谐振频率,使得当镇流器在稳态模式下工作时,灯丝电压基本上低于镇流器在预热模式下工作时的灯丝电压。

    Ballast circuit for a gas discharge lamp that reduces a pre-heat voltage to the lamp filaments during lamp ignition
    13.
    发明授权
    Ballast circuit for a gas discharge lamp that reduces a pre-heat voltage to the lamp filaments during lamp ignition 有权
    用于气体放电灯的镇流器电路,其在灯点火期间降低灯丝的预热电压

    公开(公告)号:US08203273B1

    公开(公告)日:2012-06-19

    申请号:US12464653

    申请日:2009-05-12

    IPC分类号: H05B41/14

    CPC分类号: H05B41/295

    摘要: A ballast circuit includes a filament cutback circuit to reduce a pre-heat voltage after the lamp filaments have been pre-heated. The filament cutback circuit includes a filament cut-back inductive component magnetically coupled to the resonant inductive component in the inverter to receive a filament cutback control voltage associated with an AC voltage for powering the lamps. During the pre-heating period, the filament cutback control voltage is not high enough to charge a chargeable component to a switch threshold level. However, during lamp ignition, the filament cutback control voltage is increased and charges the chargeable component to the switch threshold level. This causes a switch device to operate in a conductive switch state and the filament cutback circuit suppresses the pre-heat voltage.

    摘要翻译: 镇流器电路包括灯丝切断电路,以在灯丝已被预热之后降低预热电压。 灯丝削减电路包括磁耦合到逆变器中的谐振电感元件的灯丝截止电感元件,以接收与用于为灯供电的AC电压相关联的灯丝削减控制电压。 在预热期间,灯丝切断控制电压不足以将可充电部件充电至开关阈值电平。 然而,在点灯期间,灯丝切断控制电压增加,并将可充电部件充电至开关阈值电平。 这使得开关装置在导通开关状态下工作,灯丝切断电路抑制预热电压。

    Method and system to eliminate fluorescent lamp striations by using capacitive energy compensation
    14.
    发明授权
    Method and system to eliminate fluorescent lamp striations by using capacitive energy compensation 有权
    通过使用电容性能量补偿来消除荧光灯条纹的方法和系统

    公开(公告)号:US07679294B1

    公开(公告)日:2010-03-16

    申请号:US11950743

    申请日:2007-12-05

    IPC分类号: H05B37/02

    CPC分类号: H05B41/2858

    摘要: A method and system for reducing and/or eliminating striations from gas discharge lamps powered by an electronic ballast charges a capacitive energy device, which is coupled in parallel with the lamp, when the capacitive energy device detects that a predetermined lamp voltage condition has been satisfied. The system/method supplements the current supplied to the lamp by the electronic ballast with current supplied from the capacitive energy device when the predetermined lamp voltage condition is not satisfied. The supplemental current supplied to the lamp creates a harmonic-rich lamp current waveform that reduces and/or eliminates striations.

    摘要翻译: 一种用于减少和/或消除由电子镇流器供电的气体放电灯的条纹的方法和系统,当电容性能量装置检测到已经满足预定的灯电压条件时,将与灯并联的电容性能量装置充电 。 当不满足预定灯电压条件时,该系统/方法补充由电容式能量装置提供的电流由电子镇流器提供给灯的电流。 提供给灯的补充电流产生减少和/或消除条纹的谐波丰富的灯电流波形。

    PLC controller and discharge lighting ballast receiver with high noise immunity
    15.
    发明授权
    PLC controller and discharge lighting ballast receiver with high noise immunity 有权
    PLC控制器和放电照明镇流器,具有高抗噪声能力

    公开(公告)号:US08427074B1

    公开(公告)日:2013-04-23

    申请号:US12398494

    申请日:2009-03-05

    IPC分类号: G05F1/00

    摘要: A power line communication system communicates a ballast dimming level to an electronic ballast over an AC power line. A power line controller is operable to generate the ballast control signal and to insert that signal on the AC power signal being transmitted over the AC power line. A power line receiver receives the AC power signal and extracts the ballast control signal from the AC power signal to generate the dimming level signal corresponding with the desired ballast dimming level. To insert the ballast control signal on the AC power signal, the power line controller has a transformer coupled to the signal pattern circuit. The secondary winding of this transformer is connected in series with the AC power line to insert the ballast control signal on the AC power signal. This AC power signal is then transmitted to the electronic ballast. To extract the ballast control signal out of the AC power signal, the power line receiver has a resonant circuit connected in series with the AC power line. The resonant circuit should be tuned to transmit the ballast control signal and to filter out the AC power signal. A dimming level sensing circuit then senses the signal pattern on the ballast control signal and generates a dimming level signal corresponding to the desired ballast dimming level.

    摘要翻译: 电力线通信系统通过AC电力线将镇流器调光电平传送到电子镇流器。 电力线控制器可操作以产生镇流器控制信号并将该信号插入通过AC电力线传输的AC电力信号。 电力线接收器接收AC电力信号,并从AC电力信号中提取镇流器控制信号,以产生与期望的镇流器调光电平对应的调光电平信号。 为了将镇流器控制信号插入交流电源信号,电力线控制器具有耦合到信号模式电路的变压器。 该变压器的次级绕组与交流电源线串联连接,将镇流器控制信号插入交流电源信号。 然后将该交流电源信号传送到电子镇流器。 为了从AC电力信号中提取镇流器控制信号,电力线接收器具有与AC电力线串联连接的谐振电路。 谐振电路应调谐为传输镇流器控制信号并滤除交流电源信号。 然后,调光电平感测电路感测镇流器控制信号上的信号图案,并产生对应于期望的镇流器调光电平的调光电平信号。

    Anti-arcing protection circuit for an electronic ballast
    16.
    发明授权
    Anti-arcing protection circuit for an electronic ballast 有权
    防电弧保护电路用于电子镇流器

    公开(公告)号:US08299727B1

    公开(公告)日:2012-10-30

    申请号:US12648922

    申请日:2009-12-29

    IPC分类号: G05F1/00

    CPC分类号: H05B41/2925 Y02B20/208

    摘要: An arc protection circuit is provided for a current-fed, parallel-resonant inverter ballast. The circuit includes a lamp current rate of change sensing circuit coupled with one or more lamps to detect a total lamp current; a ballast shutdown circuit to disable the ballast in response to a disturbance in the detected signal; a startup delay circuit, at least a portion of which defines a first time delay from a predetermined condition during which the ballast can not be disabled by the shutdown circuit; and an automatic restart circuit to enable restarting of the ballast, at least a portion of which defines a second time delay during which the ballast remains disabled, after which the ballast is restarted.

    摘要翻译: 为电流馈通的并联谐振逆变器镇流器提供电弧保护电路。 电路包括与一个或多个灯耦合的变化感测电路的灯电流速率以检测总灯电流; 镇流器关闭电路,用于响应于检测到的信号中的干扰而禁止镇流器; 启动延迟电路,其至少一部分限定了从停电电路不能禁止镇流器的预定条件的第一时间延迟; 以及自动重起电路,以使得能够重新启动镇流器,其至少一部分限定第二时间延迟,在此期间镇流器保持禁用,之后镇流器重新启动。

    Modular electronic ballast
    17.
    发明授权
    Modular electronic ballast 有权
    模块化电子镇流器

    公开(公告)号:US08278835B1

    公开(公告)日:2012-10-02

    申请号:US12557889

    申请日:2009-09-11

    IPC分类号: H05B41/16 H05B41/24

    CPC分类号: H05B41/295

    摘要: A modular electronic ballast is provided for powering a fluorescent lamp. A motherboard is configured to receive an AC input signal, one or more supplemental input signals and a feedback signal from the lamp. A ballast control circuit generates an output signal for an oscillating inverter driving the lamps. A daughter card is coupled to the motherboard and selected from a plurality of daughter cards, each configured to provide a dimming control signal having predetermined characteristics and readable by the control circuit. The daughter cards are collectively configured to provide dimming control signals in response to each of a line-coupled demand response interface, one or more digitally addressable interfaces, analog dimming signals received via said supplemental communications bus, and three-wire phase control signals received via said AC line and said supplemental communications bus. The motherboard is configured to interchangeably receive any one of the daughter cards. The ballast control circuit is effective to generate output signals in response to the feedback signal, dimming control signal and a predetermined lamp output value.

    摘要翻译: 提供用于为荧光灯供电的模块化电子镇流器。 主板被配置为接收AC输入信号,一个或多个补充输入信号和来自灯的反馈信号。 镇流器控制电路产生用于驱动灯的振荡逆变器的输出信号。 子卡耦合到母板并从多个子卡中选择,每个子卡被配置为提供具有预定特性并由控制电路读取的调光控制信号。 子卡被共同地配置成响应于线路耦合的需求响应接口,一个或多个可数字寻址接口,经由补充通信总线接收的模拟调光信号和通过接收的三线相位控制信号中的每一个来提供调光控制信号 说交流线路和补充通信总线。 主板被配置为可互换地接收任何一个子卡。 镇流器控制电路响应于反馈信号,调光控制信号和预定的灯输出值而有效地产生输出信号。

    Electronic ballast with open circuit voltage control and cable compensation
    18.
    发明申请
    Electronic ballast with open circuit voltage control and cable compensation 有权
    电子镇流器具有开路电压控制和电缆补偿

    公开(公告)号:US20050168165A1

    公开(公告)日:2005-08-04

    申请号:US11004625

    申请日:2004-12-03

    摘要: An electronic ballast uses a voltage sampling circuit and a voltage control circuit to limit the open circuit voltage of the ballast. A lamp voltage sensing circuit is provided that uses a voltage dividing capacitor to accomplish lossless monitoring of the open circuit voltage of the ballast. A resistor placed in series with the sampling capacitor is used to create a voltage that turns a control transistor off and on. The control transistor produces a gating signal trimming signal that a half bridge driver uses to alter the gating signals provided to the inverter transistors of the ballast. A cable compensation circuit is included that minimizes variations in the open circuit voltage due to the connecting and disconnecting of a cable to the ballast by turning the control transistor off and on.

    摘要翻译: 电子镇流器使用电压采样电路和电压控制电路来限制镇流器的开路电压。 提供一种使用分压电容器来实现对镇流器的开路电压进行无损检测的灯电压检测电路。 使用与采样电容器串联布置的电阻器来产生使控制晶体管断开和接通的电压。 控制晶体管产生门控信号调整信号,半桥驱动器用于改变提供给镇流器的反相器晶体管的选通信号。 包括电缆补偿电路,其通过将控制晶体管断开和接通而使电缆连接到镇流器并将其断开,从而最小化开路电压的变化。

    Electronic ballast with lossless snubber capacitor circuit
    19.
    发明申请
    Electronic ballast with lossless snubber capacitor circuit 失效
    电子镇流器带无损耗缓冲电容电路

    公开(公告)号:US20050168166A1

    公开(公告)日:2005-08-04

    申请号:US11004667

    申请日:2004-12-03

    摘要: An improved high input voltage instant start electronic ballast uses a substantially lossless snubber circuit. The substantially lossless snubber circuit is incorporated into the ballast to reduce turn off losses and increase the efficiency of the ballast. The snubber circuit includes two capacitors connected in parallel with respect to the two switching transistors or FETS in the inverter of the ballast. A series-resonant lamp voltage sensing circuit is also provided that uses a voltage dividing capacitor to accomplish lossless monitoring of the open circuit voltage of the ballast. A cable compensation circuit minimizes variations in the open circuit voltage due to the connecting and disconnecting of a cable to the ballast by limiting the turn on times of the transistors during high voltage conditions.

    摘要翻译: 改进的高输入电压即时启动电子镇流器使用基本上无损耗的缓冲电路。 基本上无损耗的缓冲电路并入镇流器中以减少关断损耗并提高镇流器的效率。 缓冲电路包括相对于镇流器的反相器中的两个开关晶体管或FETS并联连接的两个电容器。 还提供了串联谐振灯电压感测电路,其使用分压电容器来实现对镇流器的开路电压的无损检测。 电缆补偿电路通过在高电压条件下限制晶体管的导通时间,将电缆连接和断开到镇流器,使开路电压的变化最小化。

    Gull wing surface mount magnetic structure
    20.
    发明授权
    Gull wing surface mount magnetic structure 有权
    鸥翼表面安装磁结构

    公开(公告)号:US07990243B1

    公开(公告)日:2011-08-02

    申请号:US12544624

    申请日:2009-08-20

    IPC分类号: H01F5/00 H01F27/29

    CPC分类号: H01F27/325 H01F27/027

    摘要: A magnetic device is provided for placement on the top surface of a printed circuit board with surface mount connection on the bottom surface. The circuit board includes first and second sets of slots bisecting each other. The device includes a bobbin with a plurality of support members each having a face shaped to engage the top surface of the printed circuit board and a plurality of pins attached to the support members. The pins have a first portion shaped to pass through the first set of slots, and a second portion shaped to pass through the second set of slots. The second portion of the pins is shaped to engage the bottom surface of the circuit board, locking the magnetic device in place against the top surface of the circuit board and providing a soldering area for surface mounting on the bottom surface.

    摘要翻译: 提供磁性装置用于放置在印刷电路板的顶表面上,其表面安装连接在底表面上。 电路板包括彼此平分的第一和第二组槽。 该装置包括具有多个支撑构件的线轴,每个支撑构件具有成形为接合印刷电路板的顶表面的表面和附接到支撑构件的多个销。 所述销具有成形为穿过所述第一组槽的第一部分和被成形为穿过所述第二组槽的第二部分。 销的第二部分成形为接合电路板的底表面,将磁性装置锁定在电路板的顶表面上的适当位置,并提供用于表面安装在底表面上的焊接区域。