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1. 发明公开

EP4240111A1 CONTROL CIRCUIT AND LIGHTING DEVICE 审中-公开
公开(公告)号：EP4240111A1
公开(公告)日：2023-09-06
申请号：EP21888471.6
申请日：2021-10-28
申请人： Suzhou Opple Lighting Co., Ltd. , Opple Lighting Co,. Ltd.
发明人： CHEN, Feng , ZHANG, Pingwei
IPC分类号： H05B45/345
摘要： The invention disclose a control circuit and a lighting device, relates to a technical field of illumination. Compared with the prior art, in the power-on process of the control circuit, the voltage input to the driving input terminal of the constant current driving module rises slowly, resulting in the current overshoot phenomenon of the light source load. In the control circuit disclosed by the present invention, because the output current of the first regulation output terminal is positively correlated with the output voltage of the voltage limiting terminal, and the output current of the second regulation output terminal is negatively correlated with the output voltage of the voltage limiting terminal, during the power-on process of the control circuit, that is, during the voltage at the voltage limiting terminal is changed from zero to the first threshold value, the current input to the driving input terminal can be relatively constant, so that the working current on the light source load connected to the constant current driving module is also relatively constant, and the phenomenon of current overshoot generated on the light source load is avoided.

2. 发明授权

EP3863378B8 LIGHTING MODULE AND CORRESPONDING LIGHTING SYSTEM 有权
公开(公告)号：EP3863378B8
公开(公告)日：2023-08-23
申请号：EP21150496.4
申请日：2021-01-07
发明人： GRIFFONI, Alessio , ANGELIN, Francesco
IPC分类号： H05B45/345 , H05B45/395 , H05B45/50

3. 发明公开

EP4203619A1 LED DRIVING SYSTEM AND CLOSED-LOOP CONTROL METHOD FOR LED DRIVING 审中-公开
公开(公告)号：EP4203619A1
公开(公告)日：2023-06-28
申请号：EP21913599.3
申请日：2021-11-22
申请人： CRM ICBG (WUXI) CO., LTD.
发明人： LIU, Jun , LI, Guocheng , WU, Quanqing
IPC分类号： H05B45/345 , H05B45/10 , H05B45/30
摘要： Provided are an LED driving system and a closed-loop control method for LED driving. The LED driving system comprises an LED load (1), a constant current control module (2), an electrolytic capacitor, a discharge voltage measurement module (3), a bus voltage measurement module (4) and a charging current control module (5), wherein the charging current control module (5) is connected to the discharge voltage measurement module (3), an output end of the bus voltage measurement module (4), and a lower pole plate of the electrolytic capacitor. A charging current of the electrolytic capacitor is adjusted on the basis of a control signal of the discharge voltage measurement module (3) and a measurement voltage of the bus voltage measurement module (4). The charging current of the electrolytic capacitor is increased or decreased by performing an addition operation or a subtraction operation by means of an addition and subtraction counter, such that loop compensation digitization is realized, a peripheral circuit is most simplified, and the system cost is low.

4. 发明公开

EP4110017A1 SYSTEM AND METHOD FOR INRUSH CURRENT CONTROL WITH COMBINATIONAL LOAD DRIVE CONFIGURATION 审中-公开
公开(公告)号：EP4110017A1
公开(公告)日：2022-12-28
申请号：EP22180452.9
申请日：2022-06-22
申请人： Goodrich Corporation
发明人： SENGODAN, Rajkumar
IPC分类号： H05B45/50 , H05B45/345 , H05B47/20 , H05B47/25
摘要： A system for controlling power provided to an electronic device includes a driver (214) configured to drive the electronic device and having an on state and an off state. The system further includes a sensor (201) configured to detect detected electrical data corresponding to electricity provided to the driver. The system further includes a controller (212) configured to compare the detected electrical data to a threshold electrical value and to determine a fault condition in response to the detected electrical data being greater than or equal to the threshold electrical value and to turn the driver to the off state in response to the controller determining the fault condition.

5. 发明授权

EP3758449B1 LIGHT EMITTING APPARATUS AND CHROMATICITY VARIATION CORRECTION METHOD 有权
公开(公告)号：EP3758449B1
公开(公告)日：2022-10-19
申请号：EP20176075.8
申请日：2020-05-22
发明人： YAMAMOTO, Shohei , SUGIMOTO, Terumitsu , TANAKA, Moyu
IPC分类号： H05B45/20 , H05B45/345

6. 发明授权

EP3799531B1 HIGH CURRENT RGB INTERFACE AND METHOD FOR USE 有权
公开(公告)号：EP3799531B1
公开(公告)日：2022-08-17
申请号：EP20198460.6
申请日：2020-09-25
发明人： SHERRIFF, Eric
IPC分类号： H05B45/46 , H05B45/20 , H05B45/325 , H05B45/345

7. 发明公开

EP4021148A1 LIGHTING CIRCUIT ASSEMBLY 审中-公开
公开(公告)号：EP4021148A1
公开(公告)日：2022-06-29
申请号：EP20425062.5
申请日：2020-12-28
申请人： Marelli Automotive Lighting Italy S.p.A.
发明人： Burcovich, Carlotta , Iellina, Matteo , Esposto, Michele , Zacco, Gabriele
IPC分类号： H05B45/345 , B60Q1/26
摘要： A lighting circuit assembly, in particular for lighting or signaling devices of motor vehicles, comprising a first lighting circuit and a second lighting circuit, configured and/or controlled so as to perform different lighting functions. The two lighting circuits comprise, on respective electronic printed circuit boards, respective matrices of LED lighting sources and respective networks of resistor elements configured so as to determine the driving current of the respective matrices of LEDs.
At least some resistor elements of a first network of resistor elements are mounted on the second electronic board and at least some resistor elements of the second network of resistor elements are mounted on the first electronic board.

9. 发明授权

EP3400636B1 SCHALTUNGSANORDNUNG UND VERFAHREN ZUM STEUERN UND MESSEN EINES STROMS IN EINEM LASTELEMENT 有权
公开(公告)号：EP3400636B1
公开(公告)日：2022-03-09
申请号：EP17717069.3
申请日：2017-01-04
发明人： BELLINGRATH, Thomas
IPC分类号： H01S5/068 , H01S5/042 , H05B45/32 , H05B45/345 , G05F1/10

10. 发明公开

EP3952614A1 ALTERNATING CURRENT SOURCE DIRECT DRIVING LED LIGHTING DEVICE 审中-公开
公开(公告)号：EP3952614A1
公开(公告)日：2022-02-09
申请号：EP19922752.1
申请日：2019-12-31
申请人： Gong, Myeong-Kook , Gong, Da-Young
发明人： Gong, Myeong-Kook , Gong, Da-Young
IPC分类号： H05B45/345 , H05B45/44 , H05B45/50
摘要： Disclosed is an AC source direct driving LED lighting device. The device comprises: a light emitting unit which has a first electrolytic capacitor and receives a rectified alternating current (AC) voltage to adjust a first constant current and emits an LED array; a charging/discharging unit which receives the adjusted first constant current to be adjusted to second to fourth constant currents and charges/discharges second to fourth electrolytic capacitors embedded therein, respectively; a discharge LED path unit which forms a path through which a voltage charged in the charging/discharging unit is discharged to the light emitting unit; and a current driving unit which receives the adjusted first to fourth constant currents to form first to fourth channel using first to fourth reference voltages and controls current transfer.

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