利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

150 条记录 (耗时 0.014 秒)

    SCHALTUNGSANORDNUNG ZUM ERZEUGEN EINER HILFSSPANNUNG UND ZUM BETREIBEN MINDESTENS EINER ENTLADUNGSLAMPE
    3.
    发明授权
    SCHALTUNGSANORDNUNG ZUM ERZEUGEN EINER HILFSSPANNUNG UND ZUM BETREIBEN MINDESTENS EINER ENTLADUNGSLAMPE 有权
    电路，用于生成用于运行至少一个放电灯的电压和辅助

    公开(公告)号：EP2138015B1

    公开(公告)日：2012-04-11

    申请号：EP07728411.5

    申请日：2007-04-23

    申请人： OSRAM AG

    发明人： KRUMMEL, Peter

    IPC分类号： H05B41/282

    CPC分类号： H05B41/2825

    摘要： The invention relates to a circuit configuration for operating at least one discharge lamp, and to a method for generating an auxiliary voltage, wherein the device for generating the auxiliary voltage (Vcc) further comprises a transformer (TR) having a primary winding (PW) and a secondary winding (SW), said transformer (TR) being coupled to the first and the second input connection, the connection for provision of the auxiliary voltage (Vcc) and the switch (Qiss) such that a current through the switch (Qiss) leads to a current through the primary winding (PW), leading to a current through the secondary winding (SW) and thus to a charging the first capacitor (Cvcc). The invention further relates to a method for generating an auxiliary voltage in the corresponding circuit configuration.

    ELECTRONIC CIRCUIT FOR DRIVING A FLUORESCENT LAMP AND LIGHTING APPLICATION
    4.
    发明公开
    ELECTRONIC CIRCUIT FOR DRIVING A FLUORESCENT LAMP AND LIGHTING APPLICATION 审中-公开
    电子电路，用于控制荧光灯和照明应用

    公开(公告)号：EP2384604A1

    公开(公告)日：2011-11-09

    申请号：EP09796452.2

    申请日：2009-12-11

    申请人： Koninklijke Philips Electronics N.V.

    发明人： VEEKEN, Renatus Willem Clemens van der

    IPC分类号： H05B41/282 ,  H05B41/392

    CPC分类号： H05B41/2825 ,  H05B41/3921

    摘要： The present invention provides an electronic circuit for driving a fluorescent lamp from a periodic input voltage provided at a power input terminal. The circuit comprises an inverter for powering the fluorescent lamp, and a control unit. The control unit comprises a measuring input connected to the power input terminal for providing a synchronisation signal representing a value of the periodic input voltage to the control unit, a control input for receiving an input signal representative of a desired lighting characteristic of the fluorescent lamp, and a control output connected to an enabling input of the inverter. The control unit is arranged to provide, via the control output, a control signal to the inverter to operate the inverter in synchronism with a periodicity of the synchronisation signal representing the value of the periodic input voltage, the control signal being based on the input signal.

    HIGH FREQUENCY DRIVER FOR GAS DISCHARGE LAMP
    6.
    发明授权
    HIGH FREQUENCY DRIVER FOR GAS DISCHARGE LAMP 有权
    高频驱动器用于气体放电灯

    公开(公告)号：EP1712112B1

    公开(公告)日：2008-10-29

    申请号：EP05702718.7

    申请日：2005-01-19

    申请人： Koninklijke Philips Electronics N.V.

    发明人： VAN MEURS, Johannes, M. ,  PAWELEK, Dorota, B.

    IPC分类号： H05B41/282

    CPC分类号： H05B41/2825

    摘要： A high frequency driver for a gas discharge lamp is supplied with a DC voltage. The driver converts the input DC voltage to an AC voltage and supplies the AC voltage to a load, which comprises a gas discharge lamp, an inductor connected in series with the lamp and a capacitor connected in parallel to the lamp. The AC voltage has a first high frequency during ignition of the lamp and a second high frequency during normal operation of the lamp after its ignition. The first frequency is higher than the second frequency by a ratio of at least 2,2. By modulating the frequency of the AC voltage the ratio can be increased while still complying with EMI and RFI requirements.

    DISCHARGE LAMP LIGHTING DEVICE AND LIGHTING FIXTURE
    7.
    发明公开
    DISCHARGE LAMP LIGHTING DEVICE AND LIGHTING FIXTURE 审中-公开
    BELEUCHTUNGSVORRICHTUNGFÜRENTLADUNGSLAMPE UND LEUCHTE

    公开(公告)号：EP1976343A1

    公开(公告)日：2008-10-01

    申请号：EP07706810.4

    申请日：2007-01-16

    申请人： MATSUSHITA ELECTRIC WORKS, LTD.

    发明人： HAMAMOTO, Katunobu c/o Matsushita Electric Works, Ltd. ,  MITUYASU, Kei c/o Matsushita Electric Works, Ltd. ,  KADO, Yosikazu c/o Matsushita Electric Works, Ltd. ,  MURAYAMA, Hirosi c/o Matsushita Electric Works, Ltd. ,  HIROSE, Hiroyuki c/o Matsushita Electric Works, Ltd.

    IPC分类号： H05B41/24 ,  H05B41/392

    CPC分类号： H05B41/2825 ,  H05B41/295 ,  H05B41/392 ,  H05B41/3922

    摘要： In order to suppress cost of an initial investment by a user and running cost to the user to a low extent while substantially constantly maintaining an apparent illuminance, and further, to realize resource saving, in a case of using a fluorescent lamp FHF 32 as a discharge lamp La, a lamp supply power is started to be supplied from a value lower than 45W as rated electric power at an initial period of an operation of the discharge lamp, a light adjustment signal is changed in response to an accumulated lighting time so that the lamp supply power can be a value higher than 45W as the rated electric power on and after a rated lifetime of the discharge lamp La, whereby the lamp supply power (output of an inverter circuit 2) is adjusted. In the fluorescent lamp FHF 32, a light/electric power ratio becomes substantially constant when the lamp supply power is 41W to 55W, and accordingly, a light quantity is increased without impairing light emission efficiency of the discharge lamp La, and as a result, the apparent illuminance can be maintained substantially constantly.

    摘要翻译： 为了抑制使用者的初始投入的成本，并且在大幅度地保持表观照度的同时向用户运行成本低，并且进一步实现资源节省，在使用荧光灯FHF 32作为 放电灯La，在放电灯的操作的初始期间，从低于45W的值作为额定电力供应灯供给电力，响应于累积的点亮时间而改变调光信号，使得 灯电源功率可以是放电灯La的额定电力和额定寿命后的高于45W的值，从而调节灯供电功率（逆变器电路2的输出）。 在荧光灯FHF32中，当灯供电功率为41W至55W时，光功率比变得基本恒定，因此在不损害放电灯La的发光效率的情况下光量增加，结果， 可以基本上恒定地维持表观照度。

    Charge pump circuit to operate control circuit
    8.
    发明公开
    Charge pump circuit to operate control circuit 审中-公开
    电荷泵用于操作的控制电路

    公开(公告)号：EP1551207A3

    公开(公告)日：2007-09-26

    申请号：EP04258065.4

    申请日：2004-12-22

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Nerone, Louis R.

    IPC分类号： H05B41/28 ,  H05B41/285 ,  H05B41/282 ,  H05B41/292 ,  H05B41/288

    CPC分类号： H05B41/2925 ,  H05B41/2825 ,  H05B41/2881

    摘要： In accordance with one aspect of the present application a ballast (10) for operating a lamp (28) includes an inverter circuit (12) configured to generate a control signal. A resonant circuit (14) is configured for operational coupling to the inverter circuit and to the lamp to generate resonant voltage in response to receiving the control signal from the inverter circuit. A clamping circuit (16) is operationally coupled to the resonant circuit to limit the voltage across the resonant circuit. A multiplier circuit (80) is operationally coupled to the resonant circuit to boost the voltage clamped by the clamping circuit to a value sufficient to permit starting of the lamp. A pulsing circuit (18) includes a power controller to pulse the inverter "ON" and "OFF," and a charge pump circuit to operate the power controller. The charge pump circuit is operationally coupled to the clamping circuit to derive electrical power from the clamping circuit.

    High voltage high side transistor driver
    9.
    发明公开
    High voltage high side transistor driver 有权
    Spannungsseitiger Hochspannungstransistortreiber

    公开(公告)号：EP1768257A1

    公开(公告)日：2007-03-28

    申请号：EP06016937.2

    申请日：2006-08-14

    申请人： Marvell World Trade Ltd

    发明人： Sutardja, Sehat

    IPC分类号： H03K17/06

    CPC分类号： H03K17/691 ,  H03K17/18 ,  H03K17/6871 ,  H03K17/6877 ,  H05B41/2825 ,  Y10S315/07

    摘要： A high side transistor driver (100) includes a sender module (104) that generates a power input signal. A converter module (102) receives the power input signal and generates an output signal that has a higher voltage than the power input signal. A receiver module (130) receives the output signal and the power input signal and transitions a transistor between ON and OFF states based on the output signal and the power input signal.

    摘要翻译： 高侧晶体管驱动器（100）包括产生功率输入信号的发送器模块（104）。 A转换器模块（102）接收电力输入信号并产生具有比电力输入信号更高的电压的输出信号。 接收器模块（130）接收输出信号和功率输入信号，并且基于输出信号和功率输入信号使晶体管在导通和截止状态之间转变。