Discharge lamp driving device, projector, and discharge lamp driving method
    61.
    发明授权
    Discharge lamp driving device, projector, and discharge lamp driving method 有权
    放电灯驱动装置,投影仪和放电灯驱动方法

    公开(公告)号:US09532439B2

    公开(公告)日:2016-12-27

    申请号:US14503853

    申请日:2014-10-01

    Abstract: A discharge lamp driving device includes: a discharge lamp driving unit which supplies drive power to a discharge lamp; and a control unit which controls the discharge lamp driving unit according to a waveform of the drive power. The waveform has n launching periods and a low-power mode lighting period. The n launching periods include a first launching period in which the drive power increases toward refresh power that is equal to or above drive power in a low-power mode and equal to or below rated power, and (n−1) launching periods in which the drive power is maintained at the refresh power. The control unit, in an x-th launching period, supplies the discharge lamp with a drive current having a drive frequency equal to or below a drive frequency of a drive current supplied to the discharge lamp in an (x−1)th launching period.

    Abstract translation: 放电灯驱动装置包括:放电灯驱动单元,其向放电灯提供驱动电力; 以及控制单元,其根据驱动力的波形控制放电灯驱动单元。 波形具有n个发射周期和低功率模式发光周期。 n个发射期包括驱动功率在低功率模式下等于或大于驱动功率并等于或低于额定功率的刷新功率增加的第一发射周期,以及(n-1)发射周期,其中 驱动功率保持在刷新功率。 所述控制单元在第x发射周期中向所述放电灯提供在(x-1)发射周期内具有等于或低于提供给所述放电灯的驱动电流的驱动频率的驱动频率的驱动电流 。

    Multiple strike ballast with lamp protection for electrodeless lamp
    63.
    发明授权
    Multiple strike ballast with lamp protection for electrodeless lamp 有权
    多重镇流器,带无极灯灯管保护

    公开(公告)号:US09301375B2

    公开(公告)日:2016-03-29

    申请号:US14064837

    申请日:2013-10-28

    CPC classification number: H05B41/16 H01J65/048 H05B41/2806 Y02B20/22

    Abstract: A multi-strike ballast to ignite an electrodeless lamp is disclosed, and includes an inverter circuit, a protection circuit, and a controller. The inverter circuit, upon activation, sends an ignition pulse to the lamp. The inverter circuit shuts down upon receiving a deactivation signal, and activates upon receiving an activation signal, triggering another ignition pulse. The protection circuit senses a change in a voltage associated with the lamp. The sensed changed may indicate that the lamp has not yet ignited or that the lamp is broken. The controller receives the sensed change in voltage and, in response, sends a deactivation signal to the inverter circuit. The controller waits a predetermined time and then sends an activation signal to the inverter circuit. The controller repeats until a change in voltage associated with the lamp is not sensed, or until a predefined number of repeats occur, providing multiple ignition pulses to the lamp.

    Abstract translation: 公开了一种点燃无电极灯的多冲击镇流器,包括逆变器电路,保护电路和控制器。 逆变器电路在激活时向灯发出点火脉冲。 逆变器电路在接收到去激活信号时关闭,并在接收到激活信号时激活,触发另一个点火脉冲。 保护电路检测与灯相关的电压的变化。 所感测到的变化可能指示灯还没有被点燃或灯被破坏。 控制器接收感测到的电压变化,作为响应,向逆变器电路发送去激活信号。 控制器等待预定时间,然后将激活信号发送到逆变器电路。 控制器重复,直到没有检测到与灯相关的电压变化,或直到发生预定数量的重复,向灯提供多个点火脉冲。

    Gas discharge lamp ballast with reconfigurable filament voltage
    64.
    发明授权
    Gas discharge lamp ballast with reconfigurable filament voltage 有权
    具有可重构灯丝电压的气体放电灯镇流器

    公开(公告)号:US09232607B2

    公开(公告)日:2016-01-05

    申请号:US13782639

    申请日:2013-03-01

    Abstract: An amount of filament voltage supplied by a reconfigurable ballast may be adjusted based on a lamp type with which the ballast is operating. The filament voltage may be reconfigured dynamically and/or may be reconfigured via a user-provided value. An electronic dimming ballast may include a control circuit configured to control generation of the AC filament voltage in accordance with a reconfigurable AC filament voltage value. Reconfiguring an electronic dimming ballast may include reconfiguring an AC filament voltage applied by the electronic dimming ballast to a filament of a lamp installed with the electronic dimming ballast. Reconfiguring the AC filament voltage may include computing a hot-to-cold cathode resistance ratio associated with the filament. Reconfiguring the AC filament voltage may include determining whether the computed hot-to-cold cathode resistance ratio is within a range specified for the electronic dimming ballast.

    Abstract translation: 由可重构镇流器提供的灯丝电压的量可以基于镇流器工作的灯类型来调节。 灯丝电压可以动态地重新配置和/或可以经由用户提供的值重新配置。 电子调光镇流器可以包括控制电路,其被配置为根据可重新配置的交流灯丝电压值来控制交流灯丝电压的产生。 重新配置电子调光镇流器可以包括将由电子调光镇流器施加的AC灯丝电压重新配置到安装有电子调光镇流器的灯的灯丝上。 重新配置交流灯丝电压可以包括计算与灯丝相关联的热到冷阴极电阻比。 重新配置交流灯丝电压可以包括确定所计算的热 - 冷阴极电阻比是否在为电子调光镇流器指定的范围内。

    High intensity discharge electronic ballast circuit, electronic ballast, and high intensity discharge lamp
    65.
    发明授权
    High intensity discharge electronic ballast circuit, electronic ballast, and high intensity discharge lamp 有权
    高强度放电电子镇流器电路,电子镇流器和高强度放电灯

    公开(公告)号:US09072151B2

    公开(公告)日:2015-06-30

    申请号:US14004647

    申请日:2011-07-26

    CPC classification number: H05B41/16 H05B41/2882

    Abstract: A high intensity discharge (HID) ballast circuit comprises a trigger circuit, a power half-bridge self-excited oscillation circuit, which is arranged to enable self-excited oscillation by energizing an angle capacitor Cgs with a Miller capacitor Cdg of a power MOSFET when an original single pulse output by the trigger circuit is excited, and then output self-excited oscillation signals; and a filter loop which is arranged to match impedance for the self-excited oscillation signals, thereby converting a low-impedance voltage source to a high-impedance constant current source. The inherent phase relationship of the power MOSFET is utilized, and oscillation signals are generated by a power half-bridge self-excited oscillation circuit, and then impedance matching for the oscillation signals is performed by the filter loop, and finally an HID lamp is triggered. As a result, damages to human eyes caused by stroboscopic effect can be avoided and electro magnetic compatibility test can be passed.

    Abstract translation: 高强度放电(HID)镇流电路包括触发电路,功率半桥自激振荡电路,其被布置为通过用功率MOSFET的米勒电容器Cdg激励角电容器Cgs来实现自激振荡, 触发电路的原始单脉冲输出被激励,然后输出自激振荡信号; 以及滤波器回路,其布置成匹配用于自激振荡信号的阻抗,从而将低阻抗电压源转换为高阻抗恒定电流源。 利用功率MOSFET的固有相位关系,通过功率半桥自激振荡电路产生振荡信号,然后通过滤波环路进行振荡信号的阻抗匹配,最后触发HID灯 。 结果,可以避免由频闪效应导致的人眼伤害,并且可以通过电磁兼容性测试。

    DIGITALLY CONTROLLED ELECTRONIC BALLAST WITH ANTI-STRIATION CONTROL AND METHOD OF OPERATION THEREOF
    66.
    发明申请
    DIGITALLY CONTROLLED ELECTRONIC BALLAST WITH ANTI-STRIATION CONTROL AND METHOD OF OPERATION THEREOF 审中-公开
    具有抗压控制的数字控制电子镇流器及其操作方法

    公开(公告)号:US20140210371A1

    公开(公告)日:2014-07-31

    申请号:US14241729

    申请日:2012-09-10

    CPC classification number: H05B41/16 H05B41/298 H05B41/36

    Abstract: An apparatus to supply power to at least one gas lamp, the apparatus including a half bridge driver having a striation control circuit which determines an on time (Ton) for a cycle in accordance with a fifty percent duty cycle, the cycle having a plurality of segments and lasting for a predetermined period of time and modulates on times Ton1 and Ton2 of first and second power switches, respectively, of a half-bridge circuit in accordance with a striation control technique for each of the plurality of segments.

    Abstract translation: 一种向至少一个燃气灯供电的装置,该装置包括具有条纹控制电路的半桥驱动器,该条纹控制电路根据百分之五十的占空比确定周期的接通时间(Ton),该周期具有多个 并且持续预定时间段,并且根据用于多个段中的每一个的条纹控制技术分别对半桥电路的第一和第二电源开关的第一和第二电源开关的次数Ton1和Ton2进行调制。

    MULTIPLE STRIKE BALLAST WITH LAMP PROTECTION FOR ELECTRODELESS LAMP
    67.
    发明申请
    MULTIPLE STRIKE BALLAST WITH LAMP PROTECTION FOR ELECTRODELESS LAMP 有权
    具有灯头保护功能的多电子镇流器

    公开(公告)号:US20140049159A1

    公开(公告)日:2014-02-20

    申请号:US14064837

    申请日:2013-10-28

    CPC classification number: H05B41/16 H01J65/048 H05B41/2806 Y02B20/22

    Abstract: A multi-strike ballast to ignite an electrodeless lamp is disclosed, and includes an inverter circuit, a protection circuit, and a controller. The inverter circuit, upon activation, sends an ignition pulse to the lamp. The inverter circuit shuts down upon receiving a deactivation signal, and activates upon receiving an activation signal, triggering another ignition pulse. The protection circuit senses a change in a voltage associated with the lamp. The sensed changed may indicate that the lamp has not yet ignited or that the lamp is broken. The controller receives the sensed change in voltage and, in response, sends a deactivation signal to the inverter circuit. The controller waits a predetermined time and then sends an activation signal to the inverter circuit. The controller repeats until a change in voltage associated with the lamp is not sensed, or until a predefined number of repeats occur, providing multiple ignition pulses to the lamp.

    Abstract translation: 公开了一种点燃无电极灯的多冲击镇流器,包括逆变器电路,保护电路和控制器。 逆变器电路在激活时向灯发出点火脉冲。 逆变器电路在接收到去激活信号时关闭,并在接收到激活信号时激活,触发另一个点火脉冲。 保护电路检测与灯相关的电压的变化。 所感测到的变化可能指示灯还没有被点燃或灯被破坏。 控制器接收感测到的电压变化,作为响应,向逆变器电路发送去激活信号。 控制器等待预定时间,然后将激活信号发送到逆变器电路。 控制器重复,直到没有检测到与灯相关的电压变化,或直到发生预定数量的重复,向灯提供多个点火脉冲。

    OPTICAL REACTOR AND DRIVING CIRCUIT FOR OPTICAL REACTOR
    68.
    发明申请
    OPTICAL REACTOR AND DRIVING CIRCUIT FOR OPTICAL REACTOR 有权
    光电反应器光驱和驱动电路

    公开(公告)号:US20120237409A1

    公开(公告)日:2012-09-20

    申请号:US13143205

    申请日:2009-12-22

    Abstract: An optical reactor has a reactor enclosure defining a reaction chamber. In the reaction chamber, a light source operating at a very high frequency is arranged to radiate light to a fluid to be treated. A low voltage electrode is arranged to surround the light source. The light source is energized by a driving circuit which is arranged adjacent to the reactor enclosure. The driving circuit has a high voltage output terminal connected to a high voltage input terminal of the light source. The driving circuit has a low voltage output terminal which is connected to the low voltage electrode.

    Abstract translation: 光反应器具有限定反应室的反应器外壳。 在反应室中,以非常高的频率操作的光源布置成将光辐射到待处理的流体。 低压电极布置成围绕光源。 光源由邻近反应器外壳布置的驱动电路通电。 驱动电路具有连接到光源的高电压输入端子的高电压输出端子。 驱动电路具有连接到低电压电极的低电压输出端子。

    HAND HELD, HIGH POWER UV LAMP
    69.
    发明申请
    HAND HELD, HIGH POWER UV LAMP 有权
    手持式高功率UV灯

    公开(公告)号:US20110140604A1

    公开(公告)日:2011-06-16

    申请号:US13020688

    申请日:2011-02-03

    CPC classification number: B05D3/067 H05B41/16

    Abstract: A UV curing lamp has variable resistive ballast provided by at least one resistance alloy wire and a set of switches tapping varying positions along the resistance alloy wire. The variable resistance ballast defines the lamp's maximum operating power consistent with the power supply. The wire in combination with a fan also doubles as thermal ballast provided by air flowing across the wire onto the UV lamp. A detachable reflector in a generally parabolic cylinder shape directs light from the lamp located on the reflector's focal axis. The curing lamp with resistive ballast can be in the form of a handheld unit or as a floor unit with rotating lamps within the housing.

    Abstract translation: 紫外线固化灯具有由至少一个电阻合金线和一组开关沿电阻合金丝线敲击不同位置的开关提供的可变电阻镇流器。 可变电阻镇流器定义灯的最大工作功率与电源一致。 与风扇相结合的电线也可以作为通过导线穿过UV灯的空气提供的热镇流器。 大体为抛物面圆筒形状的可拆卸反射器引导来自位于反射器焦点轴线上的灯的光。 具有电阻镇流器的固化灯可以是手持单元的形式或者作为具有在壳体内的旋转灯的地板单元。

    Flicker preventing apparatus of fluorescent lamp
    70.
    发明授权
    Flicker preventing apparatus of fluorescent lamp 有权
    荧光灯防闪烁装置

    公开(公告)号:US07940012B2

    公开(公告)日:2011-05-10

    申请号:US11832733

    申请日:2007-08-02

    Inventor: Young Kook Park

    CPC classification number: H05B41/16

    Abstract: A fluorescent lamp controlling circuit reduces and/or prevents a fluorescent lamp from suddenly flickering when a power switch is turned on and/or off. Switching operation of a switch that supplies a direct current voltage to the fluorescent lamp is restricted during a transient period to delay a reset signal so that undesired flicker of the fluorescent lamp can be reduced and/or prevented.

    Abstract translation: 当电源开关接通和/或断开时,荧光灯控制电路减少和/或防止荧光灯突然闪烁。 在瞬态期间限制向荧光灯供应直流电压的开关的切换操作,以延迟复位信号,从而可以减少和/或防止荧光灯的不期望的闪烁。

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