公开(公告)号：US11638343B2

公开(公告)日：2023-04-25

申请号：US17469878

申请日：2021-09-09

申请人： KOITO MANUFACTURING CO., LTD.

发明人： Yuichi Miyashita

IPC分类号： H05B47/155 ,  B60Q1/14 ,  B60Q1/48 ,  B60Q1/34 ,  H05B45/10 ,  H05B45/30

摘要： A vehicle lamp includes a turn signal lamp, a daytime running lamp, and a position lamp. A first driving circuit drives a first light source that is the turn signal lamp. A second driving circuit drives a second light source that serves as both the daytime running lamp and the position lamp. A signal processing device executes a software program to control the first driving circuit and the second driving circuit based on the turn synchronization signal, the first switch-on request, and the second switch-on request.

公开(公告)号：US11632840B2

公开(公告)日：2023-04-18

申请号：US17230557

申请日：2021-04-14

申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

发明人： Wen-Tien Tsai ,  Yu-Jen Chen

IPC分类号： H05B45/30 ,  H05B45/3725 ,  H02M7/219 ,  H02M7/04

摘要： An the LED driving circuit, for driving an the LED load, includes: a bridge rectifier for rectifying an AC input voltage into a DC voltage; a serial capacitor voltage divider coupled to the bridge rectifier, including a plurality of serial capacitors; a half-bridge switch, coupled to the serial capacitor voltage divider; and a controller coupled to the half-bridge switch, for determining whether the DC voltage is higher than a threshold value and for controlling the half-bridge switch in a full-voltage mode or a half-voltage mode. In the full-voltage mode, the plurality of serial capacitors of the serial capacitor voltage divider synchronously supply power to the LED load. In the half-voltage mode, the plurality of serial capacitors of the serial capacitor voltage divider alternatively supply power to the LED load.

公开(公告)号：US20230100614A1

公开(公告)日：2023-03-30

申请号：US18062155

申请日：2022-12-06

申请人： Feit Electric Company, Inc.

发明人： Alan Barry Feit

IPC分类号： F21K9/232 ,  F21V23/06 ,  H05B45/30

摘要： An omnidirectional LED filament holder and lighting device comprising the same comprises a filament tree supporting a plurality of linear LED filaments having a twisted orientation relative to a central support stalk of the filament tree. When arranged within a globe of a lighting device, the omnidirectional LED filament holder provides a lighting device providing omnidirectional light emission usable for general lighting applications while providing a desirable aesthetic for the lighting device.

公开(公告)号：US20230098381A1

公开(公告)日：2023-03-30

申请号：US18074144

申请日：2022-12-02

申请人： LEEDARSON LIGHTING CO.,LTD

发明人： Zongyuan Liu ,  Yankun Li ,  Yibin Chen ,  Hemu Ye

IPC分类号： F21S9/03 ,  F21V23/00 ,  H05B45/30 ,  H05B45/10

摘要： A lighting apparatus includes a solar plate, a battery, a driver module, a light source, a lens tube, a main housing and a plugging bar. The solar plate converts a sunlight to an electricity. The battery stores the electricity. The driver module converts the electricity stored in the battery to a driving current. The solar plate is placed on a top side of the driver module and the light source is placed on a bottom side of the driver module. The lens tube has a top opening and a bottom opening. The top opening has a larger size than the bottom opening. The top opening is closer to the light source than the bottom opening. A light of the light source is emitted via a lateral lens surface of the lens tube between the top opening and the bottom opening.

公开(公告)号：US11617247B2

公开(公告)日：2023-03-28

申请号：US17398036

申请日：2021-08-10

申请人： KOITO MANUFACTURING CO., LTD.

发明人： Norito Takahashi ,  Satoshi Kikuchi

IPC分类号： H05B45/30 ,  H05B45/3725 ,  H05B45/345 ,  H05B45/305 ,  H05B45/325 ,  H05B45/3575 ,  B60Q1/04

摘要： Multiple current sources are coupled in series to corresponding light-emitting elements. Switching converter supplies driving voltage to the multiple light-emitting elements and current sources. Pulse modulator generates pulse signal that transits to on level when the smallest from among voltages across both ends of the multiple current sources falls to bottom limit voltage, and subsequently transits to off level. Frequency stabilization circuit controls pulse modulator such that the frequency of pulse signal approaches its target. Dummy load circuit is configured to lower driving voltage in the enable state, to be set to the enable state when switching transistor continues to be off for a predetermined time, and to be set to the disable state in response to the next turn-on of the switching transistor.

公开(公告)号：US20230086459A1

公开(公告)日：2023-03-23

申请号：US17561684

申请日：2021-12-23

申请人： Star Mount Enterprise Limited

发明人： Xiang Hua HUANG ,  Shou Cheng WU ,  Aaron O'Brien

IPC分类号： H05B45/40 ,  H05B45/30 ,  F21V29/67

摘要： The present application provides a lighting apparatus, including a lighting apparatus body and a control circuit built in the lighting apparatus body, where the lighting apparatus body includes a plurality of LED lamps; the control circuit includes a motor drive sub-circuit and an LED drive sub-circuit, and the LED drive sub-circuit is connected to the LED lamps, and configured to provide an LED drive signal for the LED lamps; and the motor drive sub-circuit is configured to be connected to a load motor outside the lighting apparatus body, so as to provide a motor drive signal for the load motor.

公开(公告)号：US20230069849A1

公开(公告)日：2023-03-09

申请号：US17489228

申请日：2021-09-29

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Shang Ding ,  Huibo Zhong ,  Bin Hu

IPC分类号： H05B45/30 ,  H05B45/40

摘要： An example circuit includes a substrate having a surface and electrically conductive lines. The electrically conductive lines extend in a direction substantially parallel to the surface and substantially orthogonal to a virtual centerline. The circuit also includes first and second instances of a driver device having respective first and second sides, and respective line outputs. The line outputs are arranged along the first side of the respective instance of the driver device, and the respective first side of each of the first and second instances of the driver device are nearer the virtual centerline than the second side thereof. The line outputs of the first instance of the driver device are coupled to a first set of the electrically conductive lines, and the line outputs of the second instance of the driver device are coupled to a second set of the electrically conductive lines.

公开(公告)号：US20230057171A1

公开(公告)日：2023-02-23

申请号：US17981123

申请日：2022-11-04

申请人： Aleddra Inc.

发明人： Chia-Yiu Maa ,  Li-Jyuan Luo ,  Chun-Te Yu

IPC分类号： H05B47/155 ,  G10K15/02 ,  H05B45/30 ,  A61N5/06 ,  A61M21/00

摘要： A spectral power distribution (SPD) fusion lighting apparatus includes a first visible light source with a first SPD, a second visible light source with a second SPD, a driver circuit, and a controller. The first SPD is different than the second SPD markedly in a 50 nm wavelength range. The controller toggles the turning on of the first visible light and the second visible light at a frequency greater than 25 Hz. The first visible light source is turned on during one half of the duty cycle, whereas the second visible light source is turned on during the other half of the duty cycle. The first visible light source and the second visible light emit similar light outputs and have similar chromaticity coordinates on the CIE 1931 color space chromaticity diagram. In some embodiments a sound wave generator is used to generate a sound wave at the same frequency.

公开(公告)号：US20230050331A1

公开(公告)日：2023-02-16

申请号：US17517704

申请日：2021-11-03

申请人： AU Optronics Corporation

发明人： Shiang-Lin LIAN

IPC分类号： H05B45/30 ,  H01L25/16 ,  H05B45/10

摘要： The present disclosure discloses a display device, including a glass substrate and a plurality of light emitting diodes (LEDs). The glass substrate includes a first side and a second side. The LEDs include a first LED and a second LED. Compared with a reference anode signal, a first anode signal received by the first LED has a first anode signal difference and a second anode signal received by the second LED has a second anode signal difference. The first anode signal difference is smaller than the second anode signal difference. Compared with a reference cathode signal, a first cathode signal received by the first LED has a first cathode signal difference and a second cathode signal received by the second LED has a second cathode signal difference. The first cathode signal difference is larger than the cathode anode signal difference.

公开(公告)号：US11562643B2

公开(公告)日：2023-01-24

申请号：US16400372

申请日：2019-05-01

申请人： Hubbell Lighting, Inc.

发明人： Theodore E. Weber ,  Bruce Rhodes ,  Christopher Lane Bailey ,  Mark Rosenau ,  Brian Gaza

IPC分类号： G08C17/02 ,  H04L67/125 ,  H04W76/10 ,  H05B47/19 ,  H05B47/11 ,  H05B47/16 ,  H05B45/20 ,  H05B45/30

摘要： A system including a lighting controller and a radio adapter. The lighting controller includes a smart port and is configured to control at least one lighting fixture. The radio adapter is communicatively coupled to the lighting controller via the smart port. The radio adapter is configured to establish a wireless communication link between the lighting controller and an external device, communicatively couple the external device to the lighting controller via the smart port, and provide a master clock timing signal to the lighting controller via the smart port.