Frequency-modulated dimming control system of discharge lamp
    11.
    发明授权
    Frequency-modulated dimming control system of discharge lamp 有权
    放电灯调频调光控制系统

    公开(公告)号:US06936979B2

    公开(公告)日:2005-08-30

    申请号:US10617335

    申请日:2003-07-10

    CPC classification number: H05B41/3921 H05B41/3925 Y10S315/04

    Abstract: The present invention discloses a frequency-modulated dimming control system of a discharge lamp. The frequency-modulated dimming control system of a discharge lamp includes including a voltage regulator having a variable output voltage for converting an input voltage into a bus voltage, wherein a level of the bus voltage is a predetermined ratio of the input voltage, for example 10% of the input voltage, and a ballast circuit for driving the discharge lamp by detecting a variation of the bus voltage and then providing a current to the discharge lamp in response to a frequency modulation of the ballast circuit and the variation of the bus voltage so as to control a light intensity of the discharge lamp.

    Abstract translation: 本发明公开了一种放电灯的调频调光控制系统。 放电灯的调频调光控制系统包括具有可变输出电压的电压调节器,用于将输入电压转换成总线电压,其中总线电压的电平是输入电压的预定比例,例如10 输入电压的百分比,以及用于通过检测总线电压的变化来驱动放电灯的镇流器电路,然后响应于镇流器电路的频率调制和总线电压的变化而向放电灯提供电流 以控制放电灯的光强度。

    Printing press
    12.
    发明授权
    Printing press 失效
    印刷机

    公开(公告)号:US5461978A

    公开(公告)日:1995-10-31

    申请号:US312645

    申请日:1994-09-27

    Applicant: Ching-Ho Chou

    Inventor: Ching-Ho Chou

    CPC classification number: B41F13/30

    Abstract: A printing press includes two opposite mounting walls formed with aligned horizontally extending openings in which two sliding seats are mounted slidably and respectively, a printing roller extending horizontally between the mounting walls and having a longitudinal axis and two opposite ends mounted rotatably and respectively to the sliding seats, a printing plate unit mounted securely on the printing roller, a first retaining assembly provided on one of the mounting walls for retaining releasably a first one of the sliding seats in a desired position in the respective opening, and a second retaining assembly provided on the other one of the mounting walls for retaining releasably a second one of the sliding seats in a desired position in the respective opening. The retaining assemblies are actuated simultaneously to cause longitudinal sliding movement of the sliding seats within the openings so as to result in movement of the longitudinal axis of the roller relative to the mounting walls in a direction parallel to the mounting walls. Actuation of the second retaining assembly without actuating the first retaining assembly causes longitudinal sliding movement of the second one of the sliding seats within the respective opening so as to vary an angle formed between the longitudinal axis of the printing roller and one of the mounting walls.

    Abstract translation: 印刷机包括形成有对准的水平延伸的开口的两个相对的安装壁,其中两个滑动座分别可滑动地安装,分别安装在安装壁之间水平延伸并具有纵向轴线的两个相对的端部和分别安装到滑动件 座位,安装在印刷辊上的印版单元,设置在一个安装壁上的第一保持组件,用于将可释放地保持在相应开口中所需位置的第一滑动座,以及第二保持组件, 所述安装壁中的另一个用于将所述滑动座中的第二个可释放地保持在相应开口中的期望位置。 保持组件被同时致动以使得滑动座在开口内的纵向滑动运动,从而导致辊的纵向轴线相对于安装壁在平行于安装壁的方向上移动。 在不致动第一保持组件的情况下,第二保持组件的致动导致第二滑动座在相应开口内的纵向滑动运动,从而改变在印刷辊的纵向轴线与其中一个安装壁之间形成的角度。

    Multi-output electronic ballast
    13.
    发明授权
    Multi-output electronic ballast 有权
    多输出电子镇流器

    公开(公告)号:US09426869B2

    公开(公告)日:2016-08-23

    申请号:US13231337

    申请日:2011-09-13

    CPC classification number: H05B41/28 H05B41/295

    Abstract: A multi-output electronic ballast is disclosed. The multi-output electronic ballast is used to drive a plurality of lamp assemblies and includes an AC/DC converter, a first inverter, a second inverter, an auxiliary voltage generator, and a control circuit. The AC/DC converter converts an AC input voltage to a high DC voltage. The first inverter converts the high DC input voltage to a first AC voltage selectively. The second inverter converts the high DC voltage to a second AC voltage. The auxiliary voltage generator generates an auxiliary voltage. The control circuit receives the auxiliary voltage generating circuit and outputs a control signal to the first inverter according to the switching operation of a first external switch. When the control signal is transmitted to the first inverter, the first inverter comes into operation and converts the high DC voltage to the first AC voltage.

    Abstract translation: 公开了一种多输出电子镇流器。 多输出电子镇流器用于驱动多个灯组件,包括AC / DC转换器,第一逆变器,第二逆变器,辅助电压发生器和控制电路。 AC / DC转换器将交流输入电压转换为高直流电压。 第一个逆变器将高直流输入电压选择性地转换成第一交流电压。 第二个逆变器将高直流电压转换成第二交流电压。 辅助电压发生器产生辅助电压。 控制电路接收辅助电压产生电路,并根据第一外部开关的切换操作向第一反相器输出控制信号。 当控制信号被发送到第一反相器时,第一反相器进入工作状态并将高直流电压转换成第一交流电压。

    Lamp ballast having filament heating apparatus for gas discharge lamp
    14.
    发明授权
    Lamp ballast having filament heating apparatus for gas discharge lamp 有权
    具有气体放电灯灯丝加热装置的灯具镇流器

    公开(公告)号:US09013106B2

    公开(公告)日:2015-04-21

    申请号:US13242170

    申请日:2011-09-23

    CPC classification number: H05B41/295

    Abstract: Provided is a lamp ballast having a filament heating apparatus for gas discharge lamp, including a PFC converter for receiving an AC input voltage and converting the AC input voltage into a DC bus voltage; an inverter connected to an output end of the PFC converter for converting the DC bus voltage into an AC output voltage for driving gas discharge lamps; and a filament heating apparatus connected to the output end of the PFC converter. The filament heating apparatus includes an auxiliary heating circuit for converting the DC bus voltage into a heating power for pre-heating the filaments of the gas discharge lamps; and a control circuit connected to the inverter and the auxiliary heating circuit for generating an auxiliary voltage according to the heating power to activate the PFC converter. After the auxiliary heating circuit has been operating for a predetermined period of time, the auxiliary heating circuit is turned off first and then the inverter is turned on; or otherwise the inverter is turned on first and then the auxiliary heating circuit is turned off.

    Abstract translation: 提供一种具有用于气体放电灯的灯丝加热装置的灯镇流器,包括用于接收AC输入电压并将AC输入电压转换成DC总线电压的PFC转换器; 连接到PFC转换器的输出端的逆变器,用于将DC总线电压转换成用于驱动气体放电灯的AC输出电压; 以及连接到PFC转换器的输出端的灯丝加热装置。 灯丝加热装置包括辅助加热电路,用于将直流母线电压转换成用于对气体放电灯的细丝进行预热的加热功率; 以及连接到逆变器和辅助加热电路的控制电路,用于根据加热功率产生辅助电压以激活PFC转换器。 在辅助加热电路已经运行预定时间段之后,首先关闭辅助加热电路,然后使逆变器接通; 否则逆变器首先接通,然后辅助加热电路关闭。

    LAMP BALLAST HAVING FILAMENT HEATING APPARATUS FOR GAS DISCHARGE LAMP
    15.
    发明申请
    LAMP BALLAST HAVING FILAMENT HEATING APPARATUS FOR GAS DISCHARGE LAMP 有权
    具有气体放电灯的灯泡加热装置的灯管

    公开(公告)号:US20120313527A1

    公开(公告)日:2012-12-13

    申请号:US13242170

    申请日:2011-09-23

    CPC classification number: H05B41/295

    Abstract: Provided is a lamp ballast having a filament heating apparatus for gas discharge lamp, including a PFC converter for receiving an AC input voltage and converting the AC input voltage into a DC bus voltage; an inverter connected to an output end of the PFC converter for converting the DC bus voltage into an AC output voltage for driving gas discharge lamps; and a filament heating apparatus connected to the output end of the PFC converter. The filament heating apparatus includes an auxiliary heating circuit for converting the DC bus voltage into a heating power for pre-heating the filaments of the gas discharge lamps; and a control circuit connected to the inverter and the auxiliary heating circuit for generating an auxiliary voltage according to the heating power to activate the PFC converter. After the auxiliary heating circuit has been operating for a predetermined period of time, the auxiliary heating circuit is turned off first and then the inverter is turned on; or otherwise the inverter is turned on first and then the auxiliary heating circuit is turned off.

    Abstract translation: 提供一种具有用于气体放电灯的灯丝加热装置的灯镇流器,包括用于接收AC输入电压并将AC输入电压转换成DC总线电压的PFC转换器; 连接到PFC转换器的输出端的逆变器,用于将DC总线电压转换成用于驱动气体放电灯的AC输出电压; 以及连接到PFC转换器的输出端的灯丝加热装置。 灯丝加热装置包括辅助加热电路,用于将直流母线电压转换成用于对气体放电灯的细丝进行预热的加热功率; 以及连接到逆变器和辅助加热电路的控制电路,用于根据加热功率产生辅助电压以激活PFC转换器。 在辅助加热电路已经运行预定时间段之后,首先关闭辅助加热电路,然后使逆变器接通; 否则逆变器首先接通,然后辅助加热电路关闭。

    MULTI-OUTPUT ELECTRONIC BALLAST
    16.
    发明申请
    MULTI-OUTPUT ELECTRONIC BALLAST 有权
    多输出电子镇流器

    公开(公告)号:US20120248980A1

    公开(公告)日:2012-10-04

    申请号:US13231337

    申请日:2011-09-13

    CPC classification number: H05B41/28 H05B41/295

    Abstract: A multi-output electronic ballast is disclosed. The multi-output electronic ballast is used to drive a plurality of lamp assemblies and includes an AC/DC converter, a first inverter, a second inverter, an auxiliary voltage generator, and a control circuit. The AC/DC converter converts an AC input voltage to a high DC voltage. The first inverter converts the high DC input voltage to a first AC voltage selectively. The second inverter converts the high DC voltage to a second AC voltage. The auxiliary voltage generator generates an auxiliary voltage. The control circuit receives the auxiliary voltage generating circuit and outputs a control signal to the first inverter according to the switching operation of a first external switch. When the control signal is transmitted to the first inverter, the first inverter comes into operation and converts the high DC voltage to the first AC voltage.

    Abstract translation: 公开了一种多输出电子镇流器。 多输出电子镇流器用于驱动多个灯组件,包括AC / DC转换器,第一逆变器,第二逆变器,辅助电压发生器和控制电路。 AC / DC转换器将交流输入电压转换为高直流电压。 第一个逆变器将高直流输入电压选择性地转换成第一交流电压。 第二个逆变器将高直流电压转换成第二交流电压。 辅助电压发生器产生辅助电压。 控制电路接收辅助电压产生电路,并根据第一外部开关的切换操作向第一反相器输出控制信号。 当控制信号被发送到第一反相器时,第一反相器进入工作状态并将高直流电压转换成第一交流电压。

    END OF LAMP LIFE PROTECTION CIRCUIT WITH BI-LEVEL DETECTIONS FOR THE ELECTRONIC BALLAST AND METHOD THEREOF
    17.
    发明申请
    END OF LAMP LIFE PROTECTION CIRCUIT WITH BI-LEVEL DETECTIONS FOR THE ELECTRONIC BALLAST AND METHOD THEREOF 有权
    用于电子镇流器的双层级检测的灯寿命保护电路结束及其方法

    公开(公告)号:US20110156592A1

    公开(公告)日:2011-06-30

    申请号:US12980449

    申请日:2010-12-29

    CPC classification number: H05B41/2985

    Abstract: The configurations of an end of lamp life protection circuit for a ballast and a method thereof are provided in the present invention. The proposed circuit includes a voltage-dividing circuit receiving an input voltage and outputting a first and a second divided voltages and a switch apparatus raising the first divided voltage when the second divided voltage is less than a first pre-determined threshold value and turning off the ballast when the first divided voltage is higher than a second pre-determined threshold value.

    Abstract translation: 本发明提供镇流器灯寿命保护电路结束及其方法的结构。 所提出的电路包括接收输入电压并输出第一和第二分压的分压电路和当第二分压低于第一预定阈值时提升第一分压的开关装置, 当第一分压高于第二预定阈值时的镇流器。

    TWO-WAY WIRING DEVICE
    18.
    发明申请
    TWO-WAY WIRING DEVICE 有权
    双路接线装置

    公开(公告)号:US20110155455A1

    公开(公告)日:2011-06-30

    申请号:US12979457

    申请日:2010-12-28

    CPC classification number: H05K5/0247

    Abstract: The configurations of a two way wiring device are provided in the present invention. The proposed .device includes a case having a first side, a second side opposite to the first side, a third side formed between the first side and the second side and an open bottom passing therethrough a first conducting wire, wherein the third side includes a first side segment, a second side segment and a middle segment located between the first and the second side segments, and a conducting wire guiding pathway formed on the case and the first conducting wire passing the pathway and wired out of the case through one of the first side segment and the second side segment.

    Abstract translation: 本发明提供双向配线装置的结构。 所提出的装置包括具有第一侧,与第一侧相对的第二侧,形成在第一侧和第二侧之间的第三侧和穿过第一导线的开口底部的壳体,其中第三侧包括 第一侧段,第二侧段和位于第一和第二侧段之间的中间段,以及形成在壳体上的导线引导通道和通过通路的第一导线,并通过其中一个 第一侧段和第二侧段。

    Electronic ballast having a reduced reverse voltage at the start
    20.
    发明授权
    Electronic ballast having a reduced reverse voltage at the start 有权
    电子镇流器在启动时具有降低的反向电压

    公开(公告)号:US07477020B2

    公开(公告)日:2009-01-13

    申请号:US11165084

    申请日:2005-06-23

    Applicant: Ching-Ho Chou

    Inventor: Ching-Ho Chou

    CPC classification number: H05B41/2821

    Abstract: An electronic ballast includes an inductor, an output transformer, at least two switching elements, a control circuit, a clamping circuit, and at least two return circuits. The inductor is electrically coupled to a DC power supply. The control circuit is electrically connected to the inductor, the output transformer and the switching elements for controlling on/off statuses of the switching elements. The clamping circuit is electrically connected to the inductor, and limits a node voltage among the inductor, the control circuit, and the clamping circuit below a threshold value and generates an output current on condition that the node voltage is larger than the threshold value. Each of the return circuits is electrically connected to the clamping circuit and coupled to both terminals of one of the switching elements for transmitting the output current to the output transformer, thereby permitting a reverse voltage of the switching elements within a maximum allowable range of the switching elements.

    Abstract translation: 电子镇流器包括电感器,输出变压器,至少两个开关元件,控制电路,钳位电路和至少两个返回电路。 电感器电耦合到直流电源。 控制电路电连接到电感器,输出变压器和用于控制开关元件的开/关状态的开关元件。 钳位电路电连接到电感器,并且将电感器,控制电路和钳位电路之间的节点电压限制在阈值以下,并且在节点电压大于阈值的条件下产生输出电流。 每个返回电路电连接到钳位电路并且耦合到一个开关元件的两个端子,用于将输出电流传输到输出变压器,从而允许开关元件的反向电压在开关的最大允许范围内 元素。

Patent Agency Ranking