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98 条记录 (耗时 0.015 秒)

    ELECTRONIC BALLAST CIRCUIT FOR LAMPS
    1.
    发明授权
    ELECTRONIC BALLAST CIRCUIT FOR LAMPS 有权

    公开(公告)号：EP2497341B1

    公开(公告)日：2018-09-12

    申请号：EP10827676.7

    申请日：2010-11-02

    申请人： Genesys Global LLC

    发明人： MCNAY, Steve

    IPC分类号： H05B37/02 ,  H05B41/38

    CPC分类号： H05B37/02 ,  H05B41/2822 ,  H05B41/2824 ,  H05B41/382

    摘要： An electronic ballast circuit includes a power factor correction circuit, a control and amplifier circuit, a ballast controller circuit and a ballast driver circuit. The ballast driver circuit includes a resonant circuit that connects to a lamp and a strike voltage limiter circuit that regulates the behavior of the resonant circuit. An overcurrent sensor circuit may be included to indirectly the control the ballast controller circuit via the control and amplifier circuit. The strike voltage limiter circuit uses varistors to change the resonant frequency of the resonant circuit to limit the voltage to the lamp.

    INVERTER CIRCUIT
    2.
    发明公开
    INVERTER CIRCUIT 审中-公开
    变换器电路

    公开(公告)号：EP2012421A4

    公开(公告)日：2017-02-22

    申请号：EP07742113

    申请日：2007-04-20

    申请人： SUMIDA CORP

    发明人： HATAKEYAMA TAKESHI

    IPC分类号： H02M7/48 ,  H05B41/24 ,  H05K1/16

    CPC分类号： H05B41/2824 ,  H05B41/2821 ,  H05K1/0293 ,  H05K1/162 ,  H05K2201/0305 ,  H05K2201/09672 ,  H05K2203/171

    摘要： From the individual small areas (9B1 to 9B5) of a conductor pattern (9B) arranged on the back side of a circuit board (7), there are individually extended leader patterns (10), which are midway led by through holes (11) to the surface side of the circuit board (7). The individual leader patterns (10) led to the surface side are connected with a terminal portion (8) on the low-voltage side through jumper pads (12). The desired small areas (9B1 to 9B5) are enabled to function by shorting the jumper pads (12) with solder. The individual small areas (9B1 to 9B5) are constituted to have a capacity of 1 pF, when caused to function, and they have such a capacity as a pattern capacitor (9) as is proportional to the number of the shorted jumper pads (12).

    SCHALTUNGSANORDNUNG UND VERFAHREN ZUM BETREIBEN MINDESTENS EINER HOCHDRUCKENTLADUNGSLAMPE
    3.
    发明公开
    SCHALTUNGSANORDNUNG UND VERFAHREN ZUM BETREIBEN MINDESTENS EINER HOCHDRUCKENTLADUNGSLAMPE 有权
    电路及方法运行至少一个高强度放电灯

    公开(公告)号：EP2659747A1

    公开(公告)日：2013-11-06

    申请号：EP12725657.6

    申请日：2012-05-21

    申请人： OSRAM GmbH

    发明人： BOENIGK, Michael

    IPC分类号： H05B41/04 ,  H05B41/282 ,  H05B41/288

    CPC分类号： H05B41/2882 ,  H05B41/042 ,  H05B41/2824 ,  Y02B20/204

    摘要： The present invention relates to a circuit arrangement for operating at least one high-pressure discharge lamp (La) having a voltage transformer (10) having at least one electronic switch (T1; T2); an actuating circuit (12) for actuating the at least one electronic switch (T1; T2) of the voltage transformer (10) at a prescribable transformer frequency (f
    s ); a first and a second connection for coupling to the at least one high-pressure discharge lamp (La); a first capacitor (C1) which is coupled between the voltage transformer (10) and the first connection for the discharge lamp; and a charging apparatus (14), which is coupled to the first capacitor (C1) in order to charge it with a DC voltage to an ignition voltage for igniting the high-pressure discharge lamp (La); wherein the voltage transformer (10) comprises a transformer (Tr), wherein the transformer (Tr) comprises a primary inductance (P1; P1a, P1b) having at least one first and a second connection and a secondary inductance (S1) having a first and a second connection, wherein the first capacitor (C1) is coupled between the first connection of the secondary inductance (S1) and the first connection for the at least one high-pressure discharge lamp (La). The present invention moreover relates to an appropriate method for operating at least one high-pressure discharge lamp.

    Verfahren und Vorrichtung zum Zünden einer Fluoreszenz-Lampe
    4.
    发明公开
    Verfahren und Vorrichtung zum Zünden einer Fluoreszenz-Lampe 有权
    Verfahren und Vorrichtung zumZündeneiner Fluoreszenz-Lampe

    公开(公告)号：EP2418920A1

    公开(公告)日：2012-02-15

    申请号：EP10405141.2

    申请日：2010-07-21

    申请人： polynom ag

    发明人： Noe, Michel ,  Schneider, Pierre

    IPC分类号： H05B41/282 ,  H05B41/295

    CPC分类号： H05B41/2824 ,  H05B41/295 ,  Y02B20/186

    摘要： Eine elektronische Schaltung dient zur Zündung einer akkubetriebenen Fluoreszenz-Lampe (L), und weist einen Wandler (W) mit einem elektronischen Schalter (T), zur Schaltung eines Primärstromes (Ip) auf. Dabei liegen vor:
    • eine erste PWM-Signal-Steuerung (2), welche ein erstes PWM-Signal zur Steuerung des elektronischen Schalters (T) des Sperrwandlers bildet,
    • eine zweite PWM-Signal-Steuerung (4), welche ein zweites PWM-Signal bildet,
    • eine Stromsteuerung (3), welche den Primärstrom (Ip) durch den Wandler (W) kontrolliert, indem sie die ersten und zweiten Steuerparameter (fl, f2, TON1, TON2) der beiden PWM-Signal-Steuerungen (2, 4) bestimmt.
    Dabei ist die Schaltung dazu ausgebildet, die Ansteuerung des Schalters (T) mittels des zweiten PWM-Signals zu sperren oder freizugeben, indem jeweils in einer Periode (1/f2) des zweiten PWM-Signals während einer Freigabedauer (TON2) das erste PWM-Signal zur Ansteuerung des Schalters (T) freigegeben ist, und in der restlichen Zeit der Periode (1/d2) das erste PWM-Signal nicht zur Ansteuerung des Schalters (T) freigegeben ist.

    摘要翻译： 电子电路具有包括用于切换初级电流的电子开关（T）的换能器（W）。 脉宽调制（PWM）信号由PWM信号控制器（2,4）产生，用于控制电子开关并通过使用电流控制器（3）来控制换能器的初级电流。 确定PWM信号控制器的控制参数。 电子开关通过在预定时间段内使用PWM信号被锁定或释放。 包括用于点燃电池供电荧光灯的方法的独立权利要求。

    A VOLTAGE-FED PUSH-PULL LLC RESONANT LCD BACKLIGHTING INVERTER CIRCUIT
    6.
    发明授权
    A VOLTAGE-FED PUSH-PULL LLC RESONANT LCD BACKLIGHTING INVERTER CIRCUIT 有权
    针对与电源中风LLC谐振LCDRÜCKLICHTCHANGE灯电路

    公开(公告)号：EP1338178B1

    公开(公告)日：2007-03-28

    申请号：EP01996985.6

    申请日：2001-11-14

    申请人： Koninklijke Philips Electronics N.V.

    发明人： CHANG, Chin

    IPC分类号： H05B41/00

    CPC分类号： H05B41/2824 ,  H05B41/3927

    摘要： An improved electronic LCD backlighting inverter circuit for high frequency operation under low frequency pulse width modulation (PWM) for dimming control. The improved electronic LCD backlighting inverter is based on a voltage-fed push-pull LLC resonant inverter circuit configuration including a resonant inductor (L), magnetizing inductance of an output transformer (L), and resonant capacitor (C). For large values of magnetizing inductance the LLC circuit effectively becomes an LC resonant circuit. By synchronizing the high frequency switching signal and the low frequency modulation frequency using logic control circuitry, a wide dimming range and higher efficiency are achieved under PWM control.

    DEVICE FOR DRIVING DISCHARGE LAMP
    7.
    发明授权
    DEVICE FOR DRIVING DISCHARGE LAMP 有权
    一种用于控制放电灯

    公开(公告)号：EP1289346B8

    公开(公告)日：2007-03-07

    申请号：EP01908217.1

    申请日：2001-03-01

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： OHSAWA, Takashi, MITSUBISHI DENKI KABUSHIKI K.

    IPC分类号： H05B41/282 ,  H05B41/288

    CPC分类号： H05B41/2828 ,  H05B41/2824

    摘要： A reference rectangular wave generator circuit (21) generates a reference rectangular wave, which is then inverted by an inverter circuit (25). Integrators (22, 26) integrate the noninverted and inverted reference rectangle waves to generate a triangular wave. Comparator circuits (23, 27) compare the voltage levels of the triangular wave and the feedback voltage generated by the integrator, and provide control signals for transistors (9, 10). A device for driving a discharge lamp is thus provided without using a circuit for inverting a triangular wave.

    ANSTEUEREINRICHTUNG FÜR LEUCHTSTOFFRÖHREN
    8.
    发明授权
    ANSTEUEREINRICHTUNG FÜR LEUCHTSTOFFRÖHREN 有权
    对于灯的驱动装置

    公开(公告)号：EP1559300B1

    公开(公告)日：2006-06-14

    申请号：EP03769262.1

    申请日：2003-08-27

    申请人： Harman/Becker Automotive Systems GmbH

    发明人： SCHANZ, Christian ,  RUPPRECHT, Matthias

    IPC分类号： H05B41/42

    CPC分类号： H05B41/3927 ,  H05B41/2824 ,  Y02B20/186

    摘要： The invention relates to a control system for at least two light tubes (6, 7) connected to a common transformer circuit (5). The aim of said invention is to prevent in a relatively simple manner the instability of the tubes, in particular a flicker thereof. The inventive control system (2) comprises a control circuit (3) which is provided with at least two detection inlets (a2, a3) used for detecting lamp currents (l1, l2) passing through the light tubes (6, 7) The detected lamp currents (l1, l2) can be regulated to a day mode with a high current intensity and to a night mode with a low current intensity by means of the control circuit (3). The lamp currents (l1, l2) can be detected individually in day mode and in a common manner in night mode.