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13 条记录 (耗时 0.009 秒)

    DRIVER DEVICE WITH PLURAL OUTPUT CHANNELS
    1.
    发明公开
    DRIVER DEVICE WITH PLURAL OUTPUT CHANNELS 审中-公开

    公开(公告)号：EP4415483A1

    公开(公告)日：2024-08-14

    申请号：EP23156221.6

    申请日：2023-02-13

    申请人： Tridonic GmbH & Co. KG

    发明人： Egle, Manuel ,  Saccavini, Lukas ,  Stark, Stefan

    IPC分类号： H05B45/382 ,  H05B45/50 ,  H05B45/46

    CPC分类号： H05B45/382 ,  H05B45/50 ,  H05B45/46

    摘要： A driver device (1) for generating a load current for at least one load, the driver device (1) comprising an isolation barrier for isolating electrically a primary circuit (2) and a secondary circuit (4) of the driver device (1), the secondary circuit (4) comprises at least a first load terminal (LED1+) and a second load terminal (LED2+). The secondary circuit (4) comprises at least one filter circuit (1) connected with a load terminal (LED2+) of the first load terminal (LED1+) and the second load terminal (LED+), and the at least one filter circuit (11) is configured to provide a signal that is generated based on the load current output via the connected load terminal. The driver device (1) may form part of a system comprising the driver device (1) driving the load, and the load is connected between a common load terminal (LED-) and one of the first load terminal (LED1+) and the second load terminal (LED2+) of the driver device (1).

    SELF-CONTAINED EMERGENCY LUMINAIRE
    3.
    发明公开
    SELF-CONTAINED EMERGENCY LUMINAIRE 审中-公开

    公开(公告)号：EP4412400A1

    公开(公告)日：2024-08-07

    申请号：EP23154816.5

    申请日：2023-02-03

    申请人： Tridonic GmbH & Co. KG

    发明人： Wilson, Ian

    IPC分类号： H05B47/17 ,  H02J9/06 ,  F21S9/02 ,  H05B45/382 ,  G08B29/18 ,  F21S8/00

    CPC分类号： H05B47/17 ,  H05B45/382 ,  H02J9/065 ,  F21S9/022 ,  F21S8/038 ,  H05B47/183 ,  H02J9/02

    摘要： The present invention relates to an emergency luminaire comprising an emergency lighting unit, non-emergency lighting unit, an energy storage device (5) and a converter device (1,4) configured to provide, via two electric lines (3), a first supply voltage to the lighting units using energy stored in the energy storage device (5) and to provide, via the two electric lines (3), a second supply voltage to the lighting units using mains supply. The converter device (1, 4) determines whether or not the mains supply fails and provides the first supply voltage when the mains supply fails, wherein the non-emergency lighting unit determines whether the first supply voltage is provided and deactivates its light source when the first supply voltage is provided.

    ISOLATED LED CONVERTER
    7.
    发明公开
    ISOLATED LED CONVERTER 审中-实审

    公开(公告)号：EP4380316A1

    公开(公告)日：2024-06-05

    申请号：EP22210722.9

    申请日：2022-12-01

    申请人： Tridonic GmbH & Co. KG

    发明人： Nachbaur, Stefan ,  Schertler, Markus ,  Stark, Stefan ,  Walch, Patrick

    IPC分类号： H05B45/382 ,  H05B45/385 ,  H02M3/335

    CPC分类号： H05B45/382 ,  H05B45/385 ,  H02M3/33523 ,  H02M3/33592 ,  H02M1/0009

    摘要： Disclosed is an isolated LED converter (1), comprising a main transformer (111; 121), a primary-side current sensing circuit (112), a secondary-side current sensing circuit (13), and a primary-side control circuit (14). The main transformer (111; 121) comprises inductively coupled windings (111; 121), being arranged on a primary side (11) and on a secondary side (12) of the converter (1), respectively. The primary-side current sensing circuit (112) is arranged in series to the primary-side winding (111), and is configured to sense a signal (113) indicating a current (114, Iprim) through the primary-side winding (111). The secondary-side current sensing circuit (13) is arranged in parallel to the secondary-side winding (121), and is configured to sense a signal (131, ISNS) indicating a current (123) through a load (3) of the converter (1). The primary-side control circuit (14) is configured to sample and hold the signal (131, ISNS) indicating the current (123) through the load (3) during a sample-and-hold period (1421) in accordance with a zero-crossing, ZX (1141), of the signal (113) indicating the current (114, Iprim) through the primary-side winding (111). This assures a correct sampling in a plateau phase of the signal (131, ISNS) indicating a current (123) through the load (3).

    LOAD CURRENT/VOLTAGE SENSING FOR ISOLATED POWER CONVERTER
    8.
    发明公开
    LOAD CURRENT/VOLTAGE SENSING FOR ISOLATED POWER CONVERTER 审中-实审

    公开(公告)号：EP4369587A1

    公开(公告)日：2024-05-15

    申请号：EP22206008.9

    申请日：2022-11-08

    申请人： Tridonic GmbH & Co. KG

    发明人： Netzer, Harald

    IPC分类号： H02M3/335 ,  H05B45/12 ,  H05B45/24

    CPC分类号： H02M3/33553 ,  H05B45/24 ,  H02M3/33523 ,  H05B45/382 ,  H05B45/30

    摘要： Disclosed is an isolated power converter (1) for supplying an LED load (3). The converter (1) comprises a first transformer (1101, 1201) for an inductive power transfer from a primary-side circuit (11) to a secondary-side circuit (12); and a second transformer (1102, 1202) for an inductive signal transfer of an oscillation signal (1203, 1103) from the secondary-side circuit (12) to the primary-side circuit (11). The primary-side circuit (11) comprises a switching circuit (1104) for intermittent power input from a direct-current, DC, power source (1105) of the converter (1) in accordance with an actuating variable (1106) of the converter (1); and a control circuit (1107) for providing the actuating variable (1106) of the converter (1) in accordance with an indication (1103', 1103) of a controlled variable (1204) of the converter (1) and an indication (1103") of a reference variable of the converter (1). The secondary-side circuit (12) comprises a voltage-controlled oscillator, VCO (1205), for providing the oscillation signal (1203, 1103) having a frequency in accordance with a magnitude of a voltage (1206, 1206') being indicative of the controlled variable (1204) of the converter (1); and a sensing circuit (1207) for providing the voltage (1206, 1206') being indicative of the controlled variable (1204) of the converter (1). This achieves a secondary-side sensing of an output current (or voltage) at a reasonable price with acceptable accuracy.

    INTEGRATED CIRCUIT FOR CONTROL OF AN ISOLATING RESONANT LED CONVERTER, AND METHOD OF OPERATING THE INTEGRATED CIRCUIT
    10.
    发明公开
    INTEGRATED CIRCUIT FOR CONTROL OF AN ISOLATING RESONANT LED CONVERTER, AND METHOD OF OPERATING THE INTEGRATED CIRCUIT 审中-公开

    公开(公告)号：EP4422052A1

    公开(公告)日：2024-08-28

    申请号：EP23158410.3

    申请日：2023-02-24

    申请人： Tridonic GmbH & Co. KG

    发明人： Schneider, Miguel Philipp

    IPC分类号： H02M3/00 ,  H02M1/00 ,  H02M3/335 ,  H05B45/30

    CPC分类号： H02M3/01 ,  H02M3/33571 ,  H02M3/33592 ,  H02M1/0095 ,  H05B45/39 ,  H05B45/382

    摘要： Disclosed is an integrated circuit (1) for control of an isolating resonant LED converter (2). The LED converter (2) comprises an active full wave bridge rectifier (23) and an isolating transformer (221, 222). The active full wave bridge rectifier (23) comprises a first switch (231, Q1) and a second switch (232, Q2) in series, and a third switch (233, Q3) and a fourth switch (234, Q4) in series. The isolating transformer (221, 222), comprises a secondary winding (222), interconnecting a common terminal of the first switch (231, Q1) and the second switch (232, Q2), and a common terminal of the third switch (233, Q3) and the fourth switch (234, Q4). The integrated circuit (1) is configured to selectively control the LED converter (2) as a resonant hybrid Flyback converter or as a resonant LLC converter in response to a first value (S 1) or a second value (S2) of an external signal (S), respectively. This offers the benefits of different circuit topologies within one LED converter.