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1. 发明申请

WO2023272349A1 A TWO-WIRE TRAILING EDGE DIMMER CIRCUIT ARRANGEMENT 审中-公开
公开(公告)号：WO2023272349A1
公开(公告)日：2023-01-05
申请号：PCT/AU2022/050669
申请日：2022-06-29
申请人： HENDON SEMICONDUCTORS PTY LTD
发明人： BOURNE, Paul , TRACY, Philip
IPC分类号： H02M1/12 , H02M1/15 , H02M5/293 , H03K17/13 , H05B39/04 , H05B41/16 , H05B41/392 , H05B45/315 , H05B45/36 , H05B47/10 , G05F5/00 , H02M1/08
摘要： A two-wire trailing edge dimmer circuit arrangement including a voltage comparator, a low pass filter arrangement that removes high frequency ripple injection signals and a reference voltage arrangement. The voltage comparator is adapted during each half cycle of the AC mains supply to compare voltage from the low pass filter arrangement and a newly established reference voltage form the reference voltage arrangement to generate a timing signal that instigates an ON/OFF period of supply of the AC mains supply to a load under the control of the two-wire trailing edge dimmer circuit arrangement.

2. 发明申请

WO2022248329A1 A DRIVER FOR DRIVING A LOAD, SUCH AS A LED LOAD 审中-公开
公开(公告)号：WO2022248329A1
公开(公告)日：2022-12-01
申请号：PCT/EP2022/063567
申请日：2022-05-19
申请人： SIGNIFY HOLDING B.V.
发明人： WANG, Yu , FU, Jie , CHEN, Zhiquan , WANG, Gang
IPC分类号： H02M1/15 , H02M1/42 , H05B45/355 , H05B45/37 , H05B45/36 , H02M1/00 , H02M3/155 , H02M3/335
摘要： A driving arrangement is provided for driving a load, comprising a driver input for receiving an input power and a driver output to be coupled to the load. A high frequency switch mode PFC converter converts the input power to a PFC converter power and a high frequency switch mode regulator has an output connected in series with the output of the PFC converter. A superimposed power from the PFC converter and the regulator with synchronized high frequency switching is provided to the load. This enables a high frequency ripple to be at least partially cancelled. Wherein the charging phase of the PFC converter at least partially overlaps with the first phase of the regulator in which phase the regulated power increases.

3. 发明申请

WO2021185780A1 BELEUCHTUNGSEINRICHTUNG 审中-公开
公开(公告)号：WO2021185780A1
公开(公告)日：2021-09-23
申请号：PCT/EP2021/056564
申请日：2021-03-15
申请人： ATLAS ELEKTRONIK GMBH , THYSSENKRUPP AG
发明人： WITTSCHIEF, Norbert , GARBACIOK, Damian
IPC分类号： H05B45/10 , H05B45/20 , H05B45/36
摘要： Es ist eine Beleuchtungseinrichtung umfassend zumindest eine Leuchte gezeigt. Die Leuchte weist einen ersten und einen zweiten Stromtreiber sowie eine Steuereinheit auf. Die Beleuchtungseinrichtung umfasst ferner zumindest eine erste und eine zweite langsam Hochvolt Leitung (LHV-Leitungen), wobei die erste Leitung mit dem ersten Stromtreiber und die zweite Leitung mit dem zweiten Stromtreiber verbunden ist und wobei beide Leitungen jeweils eine vordefinierte Spannung gegenüber Masse aufweisen. Ein erster Schalter und ein zweiter Schalter sind mit der ersten Leitung bzw. der zweiten Leitung verbunden. Der erste und der zweite Schalter sind ausgebildet, jeweils die vordefinierte Spannung der verbundenen Leitung gegenüber Masse zu verändern. Insbesondere erfolgt die Veränderung auf eine weitere vordefinierte Spannung gegenüber Masse. Die Steuereinheit ist derart programmiert, bei einer Änderung der Spannung der ersten Leitung eine erste Aktion auszuführen, insbesondere die Leuchte anzuschalten und bei einer Änderung der Spannung der zweiten Leitung eine zweite Aktion auszuführen, die sich von der ersten Aktion unterscheidet, insbesondere die Leuchte auszuschalten.

4. 发明申请

WO2023070812A1 一种减少光源低亮抖动的装置、方法和灯具审中-公开
公开(公告)号：WO2023070812A1
公开(公告)日：2023-05-04
申请号：PCT/CN2021/133897
申请日：2021-11-29
申请人：广州市浩洋电子股份有限公司
发明人：蒋伟楷
IPC分类号： H05B45/00 , H05B45/325 , H05B45/36 , H05B45/59
摘要：一种减少光源低亮抖动的装置、方法和灯具。装置包括：LED光源、电感L、电流控制模块（1）、开关K1、信号控制模块（2）和电流采集模块（3）；开关K1的第一端用于输入电压V in，开关K1的第二端与电感L的第一端连接；电感L的第二端与LED光源的阳极连接，LED光源的阴极接地；电流控制模块（1）的第一端与开关K1的第二端和电感L的第一端连接，电流控制模块（1）的第二端接地；电流采集模块（3），用于检测装置中的电流，并与信号控制模块（2）连接，根据所检测的电流发送电流信号到信号控制模块（2）中；信号控制模块（2）还与开关K1连接，用于根据接收的电流信号或者预设的时间阈值，控制开关K1断开或者闭合。

5. 发明申请

WO2022187902A1 A DEVICE FOR POWER TRANSFORMATION AND PHOTONIC IRRADIATION 审中-公开
公开(公告)号：WO2022187902A1
公开(公告)日：2022-09-15
申请号：PCT/AU2022/050198
申请日：2022-03-11
申请人： CLEARBLUE SOFTWARE PTY LTD
发明人： WILLIAMS, Donald
IPC分类号： H02M1/42 , H05B45/30 , H05B45/37 , H02M3/335 , H02M1/4208 , H02M3/33561 , H05B45/36 , H05B45/382 , H05B45/42
摘要： The innovation specified herein effects optimal power transfer at power factor approaching unity for varying loads. The Luminaire load example embodiment can emit high power photo-flux radiance constructed by resonance while exhibiting a high degree of parametric autoregulation providing enhanced luminaire reliability with minimal semiconductor components and optimal EMC compliance. One application of such autoregulation exploits a contrived dark phase of zero LED current and consequent zero photoflux to exploit zero current switching between columns of different wavelengths for say, Visual light communications, fluorometry and insolation emulation for horticulture, polymer science, or other photochemistry. LED emitters so employed are driven by sinusoidal current waveforms which have advantageous high peak photoflux density in comparison to DC drive for the same heat dissipation and when arranged in X-Y arrays correctly regulate column current distribution for amplitude modulation or for avoiding failure cascade after element failure.

6. 发明申请

WO2022108339A1 THD 및 EMI가 개선된 조명 제어장치용 스마트 컨버터 및 이를 포함하는 조명 제어장치 审中-公开
公开(公告)号：WO2022108339A1
公开(公告)日：2022-05-27
申请号：PCT/KR2021/016922
申请日：2021-11-17
申请人： 주식회사 리산테크
发明人： 김재규 , 이남선
IPC分类号： H05B45/36 , H05B45/14 , H05B45/37
摘要： 본 발명의 실시 예들에 따른 조명을 제어하기 위한 조명 제어장치용 컨버터 는, 입력 전원에 포함된 노이즈 성분을 제거하도록 구성되는 필터 회로, 노이즈 성분이 제거된 입력 전원으로부터 전파 정류된 전원을 생성하도록 구성되는 전파 정류 회로, 전파 정류된 전원을 이용하여 조명의 구동 전원을 생성하도록 구성되는 전원 변환 회로 및 조명의 밝기를 나타내는 디밍 레벨에 따라, 구동 전원을 조절하기 위한 디밍 제어 신호를 전원 변환 회로로 출력하도록 구성되는 디밍 제어 회로를 포함하고, 디밍 제어 회로는 디밍 레벨이 제1기준 값 미만일 때, 제1제어 신호를 전파 정류 회로로 출력하고, 제1제어 신호에 응답하여, 전파 정류 회로의 합성 커패시턴스가 감소되어 조명 제어장치용 컨버터의 THD(total harmonic distortion)가 감소된다.

7. 发明申请

WO2022077762A1 均流驱动电路及显示设备审中-公开
公开(公告)号：WO2022077762A1
公开(公告)日：2022-04-21
申请号：PCT/CN2020/138541
申请日：2020-12-23
申请人：广州视源电子科技股份有限公司 , 广州视睿电子科技有限公司
发明人：张兴德
IPC分类号： H05B45/36
摘要：本申请提供一种均流驱动电路及显示设备，该电路包括：开关模块、谐振变压均流模块、第一整流滤波模块、第一负载、第二整流滤波模块以及第二负载，所述谐振变压均流模块包括变压器以及电容。变压器的初级绕组绕在变压器的磁芯中柱上，变压器的气隙位于中柱上。第一次级绕组绕在变压器的磁芯的第一边柱上，第二次级绕组绕在变压器的磁芯的第二边柱上，第一边柱和第二边柱上均不包含气隙。第一次级绕组的线圈匝数与第二次级绕组的线圈匝数相同。该电路可以显著降低电路成本以及减少占用的PCB面积。

8. 发明申请

WO2022037954A1 LIGHTING DRIVER 审中-公开
公开(公告)号：WO2022037954A1
公开(公告)日：2022-02-24
申请号：PCT/EP2021/071853
申请日：2021-08-05
申请人： SIGNIFY HOLDING B.V.
发明人： JANIK, Raymond, George , TRASK, Russel, Scott
IPC分类号： H05B45/36 , H02M1/12 , H02M1/42 , H02M3/335 , H02M5/458
摘要： A lighting driver includes a negative third harmonic generator configured to generate a negative third harmonic signal corresponding to a third harmonic of an AC input voltage shifted by 180 degrees. The lighting driver further includes an adder circuit configured to generate an adder output signal by adding the negative third harmonic signal to a voltage divider output signal generated from the AC input voltage. The lighting driver also includes a controller configured to control generation of a DC output voltage provided by the lighting driver based on a control signal generated from the adder output signal.

9. 发明申请

WO2022032632A1 CONTROL CIRCUIT, LED DRIVER AND CONTROL METHOD 审中-公开
公开(公告)号：WO2022032632A1
公开(公告)日：2022-02-17
申请号：PCT/CN2020/109141
申请日：2020-08-14
申请人： TRIDONIC GMBH & CO KG , MAO, Qiuxiang
发明人： WANG, Shuanghong , LIN, Shengdie
IPC分类号： H05B45/36
摘要： A control circuit, an LED driver and a control method. A controller configured to output a modulation signal to a dimmable chip when a DC input is detected, and the dimmable chip drives a switch of a transformer or a convertor according to the modulation signal. Thus, the EMI test can be passed due to changes of switch frequency of the converter or the transformer and the EMI filter including multiple inductors is not needed, and compact size and low cost are achieved.

10. 发明申请

WO2022189326A1 LED DRIVING CIRCUIT, LED POWERING CIRCUIT, AND LED LIGHTING DEVICE 审中-公开
公开(公告)号：WO2022189326A1
公开(公告)日：2022-09-15
申请号：PCT/EP2022/055682
申请日：2022-03-07
申请人： SIGNIFY HOLDING B.V.
发明人： QING, Shan , DE BONDT, Guy, Louis, Paul , TIAN, Junwei , CVORIC, Dalibor , SHEN, Morna , VOS, Hermanus, Johannes, Maria , DE JONGH, Frits, Tobi
IPC分类号： H05B45/36
摘要： In order to provide a balance between a fast start-up in start-up phase and a low light output ripple in normal operation phase, it is provided a LED driving circuit comprising: an input to receive a LED driving current, a buffer circuit adapted to buffer said LED driving current, and an output to be connected to LED and adapted to output the LED driving current, after buffered, to the LED, characterized in that, further comprises a buffer adjustment circuit adapted to adjust the buffer capability of the buffer circuit at a first level, in a start-up phase of the LED driving circuit when the LED driving circuit starts to receive said LED driving current, and adjust the buffer capability of the buffer circuit at a second level larger than the first level in a normal operation phase later than the start-up phase.

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