Programmed start ballast for gas discharge lamps
    1.
    发明授权
    Programmed start ballast for gas discharge lamps 有权
    气体放电灯编程启动镇流器

    公开(公告)号:US07977894B1

    公开(公告)日:2011-07-12

    申请号:US12349371

    申请日:2009-01-06

    IPC分类号: G05F1/00

    CPC分类号: H05B41/295 Y10S315/04

    摘要: An electronic ballast has control circuitry to provide a pre-heating signal to the filaments of a gas discharge lamp for a predetermined length of time before the lamp is ignited and, further, cease providing the pre-heating signal after the lamp has been ignited.

    摘要翻译: 电子镇流器具有控制电路,用于在灯被点燃之前将预热信号提供给气体放电灯的长丝一段预定的时间长度,并且在灯点燃之后停止提供预热信号。

    ELECTRONIC BALLAST FOR A GAS DISCHARGE LAMP WITH CONTROLLED FILAMENT HEATING DURING DIMMING
    2.
    发明申请
    ELECTRONIC BALLAST FOR A GAS DISCHARGE LAMP WITH CONTROLLED FILAMENT HEATING DURING DIMMING 有权
    用于燃气放电灯的电子镇流器

    公开(公告)号:US20090230887A1

    公开(公告)日:2009-09-17

    申请号:US12193521

    申请日:2008-08-18

    IPC分类号: H05B41/36

    CPC分类号: H05B41/295 Y10S315/04

    摘要: An electronic ballast has control circuitry to operate a gas discharge lamp in both full and dimmed illumination modes. A dimming controller serves as the mechanism to permit a selection between full and dimmed illumination modes. The dimming controller signal has a dimming request range which describes the range of dimming controller signal magnitudes. The electronic ballast also includes a full power circuit having a power control coupled to the dimming controller output to receive the dimming controller signal. The full power circuit also has a full power output that can couple to the lamp. When the full power circuit receives the dimming controller signal, via the power control, and the dimming controller signal is not in the dimming request range (i.e. the full illumination mode has been selected), the full power circuit generates a full power signal capable of driving/operating the lamp(s) in the full illumination mode. A filament heating circuit has a heating input coupled to the reduced power circuit, to receive the reduced power signal, and a heating output that can couple to the filaments of one or more lamps. When the reduced power signal is present, the filament heating circuit generates and provides a filament heating signal to the filaments, via the heating output. The filament heating signal maintains the temperature of the filaments when the lamp(s) are operated in the dimmed illumination mode. Further, the filament heating signal is responsive to the reduced power signal.

    摘要翻译: 电子镇流器具有控制电路,用于在充满和暗淡的照明模式下操作气体放电灯。 调光控制器用作允许在全光照明模式和暗光照明模式之间进行选择的机构。 调光控制器信号具有调光请求范围,其描述了调光控制器信号幅度的范围。 电子镇流器还包括具有耦合到调光控制器输出以接收调光控制器信号的功率控制的全功率电路。 全功率电路还具有可以耦合到灯的全功率输出。 当全功率电路接收到调光控制器信号时,通过功率控制,并且调光控制器信号不处于调光请求范围内(即,已经选择了全照明模式),全电源电路产生能够 在全照明模式下驱动/操作灯。 灯丝加热电路具有耦合到降低功率电路的加热输入,以接收降低的功率信号,以及可以耦合到一个或多个灯的灯丝的加热输出。 当存在降低的功率信号时,灯丝加热电路通过加热输出产生灯丝加热信号到灯丝。 当灯在暗淡的照明模式下操作时,灯丝加热信号保持灯丝的温度。 此外,灯丝加热信号响应于减小的功率信号。

    Anti-arcing circuit for current-fed parallel resonant inverter
    3.
    发明授权
    Anti-arcing circuit for current-fed parallel resonant inverter 有权
    电流并联谐振逆变器的抗电弧电路

    公开(公告)号:US08310160B1

    公开(公告)日:2012-11-13

    申请号:US12555524

    申请日:2009-09-08

    CPC分类号: H05B41/2855

    摘要: An arc protection circuit is provided for a current-fed, parallel-resonant inverter ballast, the circuit having a lamp signal sensing circuit coupled across one or more lamps and designed to detect a signal through the lamps, a shutdown circuit coupled to the sensing circuit and operable to disable the ballast in response to a disturbance such as an arc in the detected signal, at least a portion of the shutdown circuit defining a first time delay from detection of the disturbance in the signal during which the ballast operates normally, and after which the ballast may be disabled in response to the disturbance; and an automatic restart circuit coupled to the shutdown circuit and operable to enable restarting of the ballast, at least a portion of the restart circuit defining a second time delay during which the ballast remains disabled, after which the ballast may be restarted.

    摘要翻译: 为电流馈入的并联谐振逆变器镇流器提供电弧保护电路,该电路具有耦合在一个或多个灯上并被设计成检测通过灯的信号的灯信号检测电路,耦合到感测电路的关断电路 并且可操作以响应于所检测信号中的诸如电弧的干扰来禁用镇流器,至少一部分关断电路限定了在镇流器正常工作的信号中的干扰的检测之后的第一时间延迟,以及之后 镇流器可能因干扰而被禁用; 以及耦合到所述关闭电路并且可操作以使得能够重新启动所述镇流器的自动重启电路,所述重启电路的至少一部分限定了所述镇流器保持禁用期间的第二时间延迟,之后可以重新启动所述镇流器。

    Constant current source mirror tank dimmable ballast for high impedance lamps
    4.
    发明授权
    Constant current source mirror tank dimmable ballast for high impedance lamps 有权
    恒流源镜筒可调光镇流器用于高阻抗灯

    公开(公告)号:US07923942B1

    公开(公告)日:2011-04-12

    申请号:US12100288

    申请日:2008-04-09

    IPC分类号: H05B37/02

    CPC分类号: H05B41/42 Y10S315/04

    摘要: A constant current source mirror tank dimmable ballast operates multiple high impedance lamps in a stable and balanced manner. The dimmable ballast has an inverter connected to two third-order resonant circuits. These third-order resonant circuits dominate the transfer function of the ballast circuits. Consequently, changes in the impedance of the lamp do not affect the current output to the lamps.

    摘要翻译: 恒流源镜筒可调光镇流器以稳定和平衡的方式操作多个高阻抗灯。 调光镇流器具有连接到两个三阶谐振电路的反相器。 这些三阶谐振电路支配镇流器电路的传递函数。 因此,灯的阻抗的变化不影响到灯的电流输出。

    Low cost step dimming interface for an electronic ballast
    5.
    发明授权
    Low cost step dimming interface for an electronic ballast 有权
    电子镇流器的低成本阶梯调光接口

    公开(公告)号:US07843141B1

    公开(公告)日:2010-11-30

    申请号:US12017750

    申请日:2008-01-22

    IPC分类号: H05B37/00

    CPC分类号: H05B41/42 Y10S315/04

    摘要: A step dimming interface is utilized to operate a load such as a gas discharge lamp. The dimming interface has first and second switches for determining when the gas discharge lamp operates at either a normal power level or a dimming power level. A rectifier circuit is connected to a control signal production circuit. By manipulating the first and second switches, the rectifier sends either a full-wave rectified signal or a half-wave rectified signal to the control signal production circuit which determines the output of the control signal production circuit. The control signal production circuit may be connected to an electronic ballast which varies the power level of the lamp according to this output.

    摘要翻译: 利用阶梯调光接口来操作诸如气体放电灯的负载。 调光接口具有第一和第二开关,用于确定气体放电灯何时在正常功率水平或调光功率水平下工作。 整流电路连接到控制信号生成电路。 通过操纵第一和第二开关,整流器将全波整流信号或半波整流信号发送到确定控制信号产生电路的输出的控制信号产生电路。 控制信号生成电路可以连接到根据该输出改变灯的功率电平的电子镇流器。

    Over-voltage protection and automatic re-strike circuit for an electronic ballast
    6.
    发明授权
    Over-voltage protection and automatic re-strike circuit for an electronic ballast 有权
    电子镇流器的过电压保护和自动重击电路

    公开(公告)号:US07768755B1

    公开(公告)日:2010-08-03

    申请号:US11949938

    申请日:2007-12-04

    IPC分类号: H02H3/20

    CPC分类号: H05B41/2985

    摘要: The present invention is an overvoltage protection and automatic re-strike circuit for an electronic ballast. The electronic ballast has an inverter, a shut-down circuit, a safety circuit, a monitoring circuit, and an overvoltage protection circuit. The inverter provides an appropriate alternating current power supply to operate the lamp. The shut-down, safety, monitoring, and overvoltage protection circuits are coupled to the inverter and provide the overvoltage protection and automatic re-striking functions. During an overvoltage condition, the overvoltage protection circuit will temporarily disable the inverter. Subsequent to the overvoltage condition, the overvoltage protection circuit permits the inverter to attempt to re-ignite the lamp. After a predetermined number of unsuccessful re-ignition attempts, the safety circuit will permanently disable the inverter to avoid damage to the ballast.

    摘要翻译: 本发明是用于电子镇流器的过压保护和自动重击电路。 电子镇流器具有逆变器,停机电路,安全电路,监控电路和过电压保护电路。 逆变器提供适当的交流电源来操作灯。 关断,安全,监控和过压保护电路耦合到变频器,并提供过压保护和自动重击功能。 在过电压状态下,过压保护电路将暂时禁用变频器。 在过压状态之后,过电压保护电路允许逆变器尝试重新点燃灯。 经过预定次数不成功的重启尝试后,安全电路将永久禁用变频器,以避免损坏镇流器。

    Electronic ballast with pulse detection circuit for lamp end of life and output short protection
    7.
    发明授权
    Electronic ballast with pulse detection circuit for lamp end of life and output short protection 有权
    电子镇流器带脉冲检测电路,寿命长,输出短路保护

    公开(公告)号:US08482213B1

    公开(公告)日:2013-07-09

    申请号:US12825573

    申请日:2010-06-29

    IPC分类号: H05B37/02

    CPC分类号: H05B41/2855

    摘要: An electronic ballast for fluorescent lighting includes an inverter circuit having an output circuit coupled to a pair of lamp terminals. A protection circuit is coupled to one of the lamp terminals. The protection circuit includes a differential voltage sensing circuit that is functional to sense the lamp voltage pulses as sudden changes in voltage across a DC blocking capacitor and, in response, to provide a positive AC voltage pulse. A pulse accumulation circuit is coupled to the differential voltage sensing circuit. The pulse accumulation circuit is responsive to the positive AC voltage pulses from the differential voltage sensing circuit to accumulate the positive AC voltage pulses into the ballast shutdown signal.

    摘要翻译: 用于荧光灯的电子镇流器包括具有耦合到一对灯端子的输出电路的逆变器电路。 保护电路耦合到一个灯端子。 保护电路包括差分电压检测电路,其功能是将灯电压脉冲作为突发的跨越DC阻断电容器的电压变化,并作为响应提供正的AC电压脉冲。 脉冲累积电路耦合到差分电压感测电路。 脉冲累积电路响应来自差分电压感测电路的正交流电压脉冲,以将正的交流电压脉冲累积到镇流器关断信号中。

    Ballast circuit for reducing lamp striations
    8.
    发明授权
    Ballast circuit for reducing lamp striations 有权
    用于减少灯条的镇流器电路

    公开(公告)号:US08258712B1

    公开(公告)日:2012-09-04

    申请号:US12494177

    申请日:2009-06-29

    IPC分类号: H05B37/02

    CPC分类号: H05B41/2928

    摘要: An electronic ballast circuit includes a striation reduction circuit that can create an asymmetry in a lamp power signal that powers a gas-discharge lamp. The striation reduction circuit may have first and second circuit paths to cause the asymmetry in the lamp power signal. The first circuit path transmits the AC component signal of an input signal associated with an AC voltage while the second circuit path transmits a DC component signal. A non-linear component in the second circuit path is utilized to generate a harmonic component signal. AC component signal, DC component signal, and harmonic component signal are superimposed onto one another to cause an asymmetry in the lamp power signal that powers the gas discharge lamp.

    摘要翻译: 电子镇流器电路包括能够产生对气体放电灯供电的灯功率信号的不对称性的条纹减小电路。 条纹降低电路可以具有第一和第二电路路径,以引起灯功率信号的不对称性。 第一电路路径发送与AC电压相关联的输入信号的AC分量信号,而第二电路路径发送DC分量信号。 利用第二电路路径中的非线性分量来产生谐波分量信号。 AC分量信号,DC分量信号和谐波分量信号彼此叠加,导致对气体放电灯供电的灯功率信号的不对称性。

    Electronic ballast for a gas discharge lamp with controlled filament heating during dimming
    9.
    发明授权
    Electronic ballast for a gas discharge lamp with controlled filament heating during dimming 有权
    用于气体放电灯的电子镇流器,在调光过程中控制灯丝加热

    公开(公告)号:US07952303B2

    公开(公告)日:2011-05-31

    申请号:US12193521

    申请日:2008-08-18

    IPC分类号: H05B37/02

    CPC分类号: H05B41/295 Y10S315/04

    摘要: An electronic ballast has control circuitry to operate a gas discharge lamp in both full and dimmed illumination modes. The electronic ballast also includes a full power circuit having a power control coupled to the dimming controller output to receive the dimming controller signal, a filament heating circuit having a heating input coupled to a reduced power circuit to receive a reduced power signal and a heating output that can couple to the filaments of one or more lamps. When the full power circuit receives the dimming controller signal, via the power control, and the dimming controller signal is not in the dimming request range (i.e. the full illumination mode has been selected), the full power circuit generates a full power signal capable of driving/operating the lamp(s) in the full illumination mode. When the reduced power signal is present, the filament heating circuit generates and provides a filament heating signal to the filaments, via the heating output.

    摘要翻译: 电子镇流器具有控制电路,用于在充满和暗淡的照明模式下操作气体放电灯。 电子镇流器还包括具有耦合到调光控制器输出以接收调光控制器信号的功率控制的全功率电路,灯丝加热电路,其具有耦合到降低功率电路的加热输入以接收降低的功率信号和加热输出 这可以耦合到一个或多个灯的灯丝。 当全功率电路接收到调光控制器信号时,通过功率控制,并且调光控制器信号不处于调光请求范围内(即,已经选择了全照明模式),全电源电路产生能够 在全照明模式下驱动/操作灯。 当存在降低的功率信号时,灯丝加热电路经由加热输出产生灯丝加热信号到灯丝。

    Reduced leakage inductance transformer and winding methods
    10.
    发明授权
    Reduced leakage inductance transformer and winding methods 有权
    减少漏电感变压器和绕组方法

    公开(公告)号:US09136054B1

    公开(公告)日:2015-09-15

    申请号:US12951990

    申请日:2010-11-22

    CPC分类号: H01F29/02 H01F27/28 H01F30/06

    摘要: A transformer apparatus provides a primary winding and a secondary winding. The primary winding is divided into multiple primary winding layers. Each primary winding layer includes a number of primary layer turns. The secondary winding includes several secondary winding layers. In some embodiments, the transformer includes alternating primary and secondary winding layers wound around a bobbin structure. At least one secondary winding layer is positioned adjacent a primary winding layer. In some embodiments, the number of primary layer turns in each primary winding layer is equal to the total number of primary winding turns divided by the number of primary winding layers. A method of winding a transformer is also provided.

    摘要翻译: 变压器装置提供初级绕组和次级绕组。 初级绕组分为多个初级绕组层。 每个初级绕组层包括多个主层匝数。 次级绕组包括几个次级绕组层。 在一些实施例中,变压器包括缠绕在线轴结构上的交替的初级和次级绕组层。 至少一个次级绕组层位于初级绕组层附近。 在一些实施例中,每个初级绕组层中的主层匝数等于初级匝数的总数除以初级绕组层的数量。 还提供了一种卷绕变压器的方法。