公开(公告)号：US12078301B2

公开(公告)日：2024-09-03

申请号：US18244603

申请日：2023-09-11

申请人： JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD

发明人： Aiming Xiong ,  Xintong Liu ,  Junren Chen ,  Hechen Hu ,  Hao Zhang

IPC分类号： F21K9/278 ,  F21K9/272 ,  F21K9/275 ,  F21V3/06 ,  F21V15/015 ,  F21V23/00 ,  F21V23/02 ,  F21V25/02 ,  F21V25/04 ,  F21V29/70 ,  H05B45/00 ,  H05B45/10 ,  H05B45/20 ,  H05B45/37 ,  H05B45/50 ,  H05B45/59 ,  H05K1/00 ,  F21V29/83 ,  F21Y103/10 ,  F21Y115/10 ,  H05K1/14

CPC分类号： F21K9/278 ,  F21K9/272 ,  F21K9/275 ,  F21V3/061 ,  F21V15/015 ,  F21V23/003 ,  F21V23/005 ,  F21V23/023 ,  F21V25/02 ,  F21V25/04 ,  F21V29/70 ,  H05B45/00 ,  H05B45/10 ,  H05B45/20 ,  H05B45/37 ,  H05B45/50 ,  H05B45/59 ,  H05K1/00 ,  F21V23/02 ,  F21V29/83 ,  F21Y2103/10 ,  F21Y2115/10 ,  H05K1/147 ,  H05K2201/10106 ,  Y02B20/30

摘要： An LED lamp and a power supply module thereof are provided. The power supply module includes a driving circuit, a OVP circuit, and an impedance detection circuit. The OVP circuit is configured to determine whether an OVP condition is detected by sampling the driving signal, and the impedance detection circuit is configured to determine whether a user touching state is detected. When either the OVP condition or the user touching state is detected, the power switch of the driving circuit will be controlled to limit the amount of a current flowing through the power switch. In addition, the impedance detection circuit could detect the user touching state by comparing signals with a defined level sampled during each pulse, thus enhancing the detection accuracy.

公开(公告)号：US20240251491A1

公开(公告)日：2024-07-25

申请号：US18626148

申请日：2024-04-03

申请人： Aleddra Inc.

发明人： Chia-Yiu Maa ,  Chun-Te Yu

IPC分类号： H05B45/305 ,  A61B18/00 ,  A61M21/00 ,  A61N5/06 ,  H05B45/37 ,  H05B45/59

CPC分类号： H05B45/305 ,  A61M21/00 ,  A61N5/0618 ,  H05B45/37 ,  H05B45/59 ,  A61B2018/00732 ,  A61M2021/0044 ,  A61N2005/0626 ,  A61N2005/0652 ,  A61N2005/0653

摘要： A gamma stimulation apparatus comprises a rectifier, a microcontroller, a first modulation operation switch (MOS), a second MOS, and first and second light sources. The microcontroller sends the first MOS a first signal having a first periodical waveform at a first operating frequency (OF1). The first MOS operates the first light source according to the first signal, producing a first light output at the OF1 frequency. The microcontroller sends the second MOS a second signal having a second periodical waveform at a second operating frequency (OF2). The second MOS operates the second light source according to the second signal, producing a second light output at the OF2 frequency. The first and second light outputs superimpose each other to form a superimposed light having a superimposed frequency equal to OF2−OF1 and between 20 Hz and 45 Hz. The superimposed light appears flicker-free (free of flicker) to eyes of a subject.

公开(公告)号：US11856666B2

公开(公告)日：2023-12-26

申请号：US17598157

申请日：2019-12-31

申请人： Myeong-Kook Gong ,  Da-Young Gong

发明人： Myeong-Kook Gong ,  Da-Young Gong

IPC分类号： H05B45/345 ,  H05B45/44 ,  H05B45/59

CPC分类号： H05B45/345 ,  H05B45/44 ,  H05B45/59

摘要： Disclosed is an AC source direct driving LED lighting device. The device including: 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.

公开(公告)号：US11792903B2

公开(公告)日：2023-10-17

申请号：US17770380

申请日：2020-10-20

申请人： SIGNIFY HOLDING B.V.

发明人： Henricus Marius Joseph Maria Kahlman ,  Theo Gerrit Zijlman

IPC分类号： H05B45/59 ,  H05B45/52

CPC分类号： H05B45/59 ,  H05B45/52

摘要： An LED arrangement having a LED string and a smoothing capacitor connected in parallel. A controllable voltage limiter is able to limit a voltage across the LED string to selectively prevent the LED string from outputting light. As the LED arrangement is turned ON, the controllable voltage limiter may activate so that the smoothing capacitor can be charged with a high current without activating the LED string.

公开(公告)号：US20230324013A1

公开(公告)日：2023-10-12

申请号：US18204887

申请日：2023-06-01

申请人： JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD

发明人： Aiming Xiong ,  Wentao Yao ,  Hong Xu

IPC分类号： F21K9/278 ,  F21K9/275 ,  F21K9/66 ,  F21V25/10 ,  F21V3/06 ,  H05B45/50 ,  H05B45/3578 ,  H05B45/3725 ,  H05B45/00 ,  H05B45/37 ,  H05B45/59

CPC分类号： F21K9/278 ,  F21K9/275 ,  F21K9/66 ,  F21V25/10 ,  F21V3/062 ,  F21Y2115/10 ,  H05B45/3578 ,  H05B45/3725 ,  H05B45/00 ,  H05B45/37 ,  H05B45/59 ,  H05B45/50

摘要： An LED tube lamp comprises: a glass lamp tube; an LED light strip disposed inside the glass lamp tube and comprised a mounting region and a connecting region; an LED module comprised a plurality of LED light sources mounted on the mounting region; two first connecting pads arranged on the connecting region, each of the first connecting pads comprising a through hole therein; a fixing structure disposed inside the glass lamp tube and extending along the longitudinal direction of the glass lamp tube, the fixing structure comprising a first end fixedly connected to the inner circumferential surface of the glass lamp tube and a second end fixedly connected to the LED light strip; a circuit board separate from the light strip and soldered to the LED light strip via the two first connecting pads, and a solder be disposed on each of the first connecting pads and in the through hole of each first connecting pad and a power supply module. The power supply module comprises a first rectifying circuit; a filtering circuit coupled to the first rectifying circuit and a driving circuit coupled to the filtering circuit.

公开(公告)号：US11754232B2

公开(公告)日：2023-09-12

申请号：US18075549

申请日：2022-12-06

申请人： JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD

发明人： Aiming Xiong ,  Xintong Liu ,  Junren Chen ,  Hechen Hu ,  Hao Zhang

IPC分类号： F21K9/278 ,  F21V23/00 ,  H05B45/10 ,  H05B45/20 ,  H05B45/37 ,  H05B45/50 ,  F21Y103/10 ,  F21Y115/10 ,  F21V29/70 ,  F21K9/272 ,  F21K9/275 ,  F21V3/06 ,  H05B45/00 ,  F21V15/015 ,  F21V23/02 ,  F21V25/02 ,  F21V25/04 ,  H05K1/00 ,  H05B45/59 ,  F21V29/83 ,  H05K1/14

CPC分类号： F21K9/278 ,  F21K9/272 ,  F21K9/275 ,  F21V3/061 ,  F21V15/015 ,  F21V23/003 ,  F21V23/005 ,  F21V23/023 ,  F21V25/02 ,  F21V25/04 ,  F21V29/70 ,  H05B45/00 ,  H05B45/10 ,  H05B45/20 ,  H05B45/37 ,  H05B45/50 ,  H05B45/59 ,  H05K1/00 ,  F21V23/02 ,  F21V29/83 ,  F21Y2103/10 ,  F21Y2115/10 ,  H05K1/147 ,  H05K2201/10106 ,  Y02B20/30

摘要： An LED lamp and a power source module thereof are provided. The power source module includes a switch-type DC-to-DC converter integrated with a function for detecting whether a foreign external impedance exists. The switch-type DC-to-DC converter is configured to enter an installation detection mode when the switch-type DC-to-DC converter is activated. When the switch-type DC-to-DC converter is in the installation detection mode, the switch-type DC-to-DC converter receives an external AC signal received by the LED lamp to detect whether a foreign external impedance exists based on the received signal.

公开(公告)号：US20220210888A1

公开(公告)日：2022-06-30

申请号：US17695841

申请日：2022-03-16

申请人： Huizhou Haomeishi Intelligent Technology Co., Ltd.

发明人： HUI LI ,  Long Zhao ,  Wenfan Li

IPC分类号： H05B45/40 ,  H05B45/3725 ,  H05B45/59 ,  H05B45/355

摘要： A virtual and parallel power extraction method by using time division, comprising an alternating current load (1), a load end time-division power extraction control device (2), a switch end time-division power extraction control device (3), and a switch end power supply load (4). The alternating current load (1) is connected in parallel with the load end time-division power extraction control device (2); the switch end time-division power extraction control device (3) is connected in parallel with the switch end power supply load (4); a combination body formed by connecting the alternating current load (1) with the load end time-division power extraction control device (2) in parallel and the combination body formed by connecting the switch end time-division power extraction control device (3) with the switch end power supply load (4) in parallel are together connected in series in an alternating current circuit. The present invention provides an efficient power extraction method between an electronic switch and a connected load on the premise of having no a neutral line, and particularly solves the problem that the electronic switch is falsely turned off or incompletely turned off for a low-power LED lamp.

公开(公告)号：US20240334563A1

公开(公告)日：2024-10-03

申请号：US18429816

申请日：2024-02-01

申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

发明人： LIQIANG ZHU ,  JUN ZHOU

IPC分类号： H05B45/10 ,  H05B45/31 ,  H05B45/345 ,  H05B45/395 ,  H05B45/50 ,  H05B45/59

CPC分类号： H05B45/10 ,  H05B45/31 ,  H05B45/345 ,  H05B45/395 ,  H05B45/50 ,  H05B45/59

摘要： System and method for controlling one or more light emitting diodes. For example, the system for controlling one or more light emitting diodes includes a current regulation circuit coupled to a cathode of one or more light emitting diodes. The one or more light emitting diodes include the cathode and an anode configured to receive a rectified voltage. Additionally, the system includes a control circuit coupled to the cathode of the one or more light emitting diodes. The control circuit is configured to receive a first voltage from the cathode of the one or more light emitting diodes, compare a second voltage and a threshold voltage, and generate a control signal based at least in part on the second voltage and the threshold voltage. The second voltage indicates a magnitude of the first voltage.

公开(公告)号：US20240172339A1

公开(公告)日：2024-05-23

申请号：US18426882

申请日：2024-01-30

申请人： Lutron Technology Company LLC

发明人： Robert C. Newman, Jr.

IPC分类号： H05B39/04 ,  H05B45/50 ,  H05B45/59 ,  H05B45/3725

CPC分类号： H05B39/04 ,  H05B45/50 ,  H05B45/59 ,  H05B45/3725

摘要： A load control device may be configured to control an electrical load, such as a lighting load. The load control device may include a first terminal adapted to be coupled to an alternating-current (AC) power source, and a second terminal adapted to be coupled to the electrical load. The load control device may include a bidirectional semiconductor switch, a filter circuit, and a control circuit. The bidirectional semiconductor switch may be coupled in series between the first terminal and the second terminal, and be configured to provide a phase-control voltage to the electrical load. The filter circuit may be coupled between the first terminal and the second terminal. The control circuit may be configured to render the bidirectional semiconductor switch conductive and non-conductive to control an amount of power delivered to the electrical load, and be configured to adjust the impedance and/or filtering characteristics of the filter circuit.

公开(公告)号：US20240121871A1

公开(公告)日：2024-04-11

申请号：US18279278

申请日：2022-03-07

申请人： SIGNIFY HOLDING B.V.

发明人： SHAN QING ,  GUY LOUIS PAUL DE BONDT ,  JUNWEI TIAN ,  DALIBOR CVORIC ,  MORNA SHEN ,  HERMANUS JOHANNES MARIA VOS ,  FRITS TOBI DE JONGH

IPC分类号： H05B45/59 ,  H05B47/17

CPC分类号： H05B45/59 ,  H05B47/17

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.