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公开(公告)号：US20190242534A1
公开(公告)日：2019-08-08
申请号：US16358494
申请日：2019-03-19
Inventor： Aiming XIONG , Xintong LIU
IPC: F21K9/278 , H05B33/08 , H05K1/00 , F21V23/00 , F21V25/02 , F21K9/272 , F21V29/70 , F21V23/02 , F21K9/275 , F21V15/015 , F21V3/06
CPC classification number: F21K9/278 , F21K9/272 , F21K9/275 , F21V3/061 , F21V15/015 , F21V23/003 , F21V23/005 , F21V23/02 , F21V23/023 , F21V25/02 , F21V29/70 , F21V29/83 , F21Y2103/10 , F21Y2115/10 , H05B33/0803 , H05B33/0815 , H05B33/0845 , H05B33/0857 , H05B33/0887 , H05K1/00 , Y02B20/341 , Y02B20/346
Abstract: A light-emitting diode (LED) tube lamp comprising a tube, end caps with contact pins and located on both ends of the tube, a first rectifying circuit and a second rectifying circuit and a filtering circuit that are coupled with the contact pins on the two end caps respectively, and a switch circuitry that is located between the rectifying circuits and the filtering circuit characterized in that the switch circuitry is capable of detecting whether the LED tube lamp is correctly installed on a lamp socket so as to reduce the risk of electric shock.
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公开(公告)号：US20190132926A1
公开(公告)日：2019-05-02
申请号：US16146046
申请日：2018-09-28
Inventor： Jiayun Dai , Pengyuan Zhao , Xiaobo You
CPC classification number: H05B33/0863 , G06F3/04847 , G06F3/04883 , H05B37/0272 , Y02B20/346
Abstract: A dimming processing system for an LED lamp, comprising a signal input area, a plurality of color trigger switches located in the signal input area, an HSV color selection area composed of the plurality of color trigger switches, and a non-color selection area located in the signal input area, a value module, and a dimming processing module. The value unit is configured to turned on the one of the selected color trigger switches in the last selected HSV color selection area having the largest distance from the pole of the polar coordinate system when selecting the at least one of the color trigger switches is sequentially switched to select at least one of the selection switches or when the at least one selection switch and the at least one color trigger switch are simultaneously selected, and the HSV value corresponding to the color trigger switch is extracted. when sliding from the HSV color selection area to the non-color selection area, the one of the selected color trigger switches having the largest distance from the pole of the polar coordinate system is selected, thereby avoid the blurring and uncertainty of the finger sliding, resulting in the phenomenon of edge color loss failure, which can ensure the smoothing effect of finger movement and the continuity of data selection.
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公开(公告)号：US20190069364A1
公开(公告)日：2019-02-28
申请号：US16009727
申请日：2018-06-15
Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.
Inventor： LIQIANG ZHU , JUN ZHOU , YONGSHENG SU , LIEYI FANG
CPC classification number: H05B33/0845 , H05B33/0815 , H05B37/02 , Y02B20/346
Abstract: System and method for dimming control of one or more light emitting diodes. An example system includes one or more signal processing components configured to receive a first signal associated with a TRIAC dimmer, process information associated with the first signal, determine whether the TRIAC dimmer is in a first condition or a second condition, generate a second signal based on at least information associated with the first signal, and send the second signal to a switch. The one or more signal processing components are further configured to, if the TRIAC dimmer is determined to be in the first condition, generate the second signal to cause the switch to be opened and closed corresponding to a modulation frequency.
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公开(公告)号：US20190041008A1
公开(公告)日：2019-02-07
申请号：US16143852
申请日：2018-09-27
Inventor： Aiming Xiong , Xintong Liu
IPC: F21K9/278 , H05B33/08 , H05K1/00 , F21K9/275 , F21V25/02 , F21V23/02 , F21V29/70 , F21V23/00 , F21V15/015 , F21V3/06 , F21K9/272 , F21V29/83 , F21Y103/10 , F21Y115/10
CPC classification number: F21K9/278 , F21K9/272 , F21K9/275 , F21V3/061 , F21V15/015 , F21V23/003 , F21V23/005 , F21V23/02 , F21V23/023 , F21V25/02 , F21V29/70 , F21V29/83 , F21Y2103/10 , F21Y2115/10 , H05B33/0803 , H05B33/0815 , H05B33/0845 , H05B33/0857 , H05B33/0884 , H05B33/0887 , H05K1/00 , H05K1/14 , H05K1/189 , H05K2201/09027 , H05K2201/10106 , Y02B20/346
Abstract: A light-emitting diode (LED) tube lamp includes at least a first and second external connection terminal each connected to an opposite side of the ballast by-pass LED tube lamp and is capable of operating in a ballast-bypass mode The LED tube lamp includes an LED module configured to emit light in response to a lamp driving signal and a power supply module electrically connected to the first and second external connection terminals for receiving an AC supply signal having frequency of 50 Hz or 60 Hz in the ballast-bypass mode and configured to provide the driving current to the LED module. The power supply module comprises a rectifying circuit, receiving the AC supply signal from a rectifying input side; a filtering circuit, electrically connected to the rectifying circuit; a driving circuit, electrically connected to the filtering circuit and configured to generate the lamp driving signal to drive the LED module for emitting light; a first circuit; and a second circuit, electrically connected to the rectifying circuit and the first circuit and configured to form a detection path between the rectifying input side and a ground terminal. The first circuit turns on the detection path and cuts off the detection path so as to cause a detection current having pulse waveform flowing through the detection path, and the second circuit generates a signal, for indicating whether a foreign external impedance is electrically connected to the LED tube lamp, in response to the detection current.
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公开(公告)号：US10139052B2
公开(公告)日：2018-11-27
申请号：US15626238
申请日：2017-06-19
Inventor： Aiming Xiong , Xintong Liu , Kanghong Zhang
IPC: H05B37/00 , H05B41/00 , F21K9/278 , F21K9/272 , F21V15/015 , H05B33/08 , F21K9/275 , F21V23/02 , F21V29/70 , F21V25/02 , F21V23/00 , F21V3/06 , H05K1/00 , F21Y115/10 , F21Y103/10 , F21V29/83
CPC classification number: F21K9/278 , F21K9/272 , F21K9/275 , F21V3/061 , F21V15/015 , F21V23/003 , F21V23/005 , F21V23/02 , F21V23/023 , F21V25/02 , F21V29/70 , F21V29/83 , F21Y2103/10 , F21Y2115/10 , H05B33/0803 , H05B33/0815 , H05B33/0845 , H05B33/0857 , H05B33/0887 , H05K1/00 , Y02B20/341 , Y02B20/346
Abstract: An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit is configured to detect during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal. The installation detection circuit includes a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit. The installation detection circuit is further configured to: when it is detected during one or more pulse signals that the LED tube lamp is not properly installed on the lamp socket, control the switch circuit to remain in an off state to cause a power loop of the LED tube lamp to be open; and when it is detected during one or more pulse signals that the LED tube lamp is properly installed on the lamp socket, control the switch circuit to remain in a conducting state to cause the power loop of the LED tube lamp to maintain a conducting state.
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Patent Agency Ranking
公开(公告)号：US10057950B2
公开(公告)日：2018-08-21
申请号：US15537479
申请日：2016-04-12
Applicant: TRIDONIC GMBH & CO KG
Inventor： Frank Lochmann , Markus Mayrhofer , Janosch Marquart , Simon Nigsch
CPC classification number: H05B33/0815 , H02M1/4233 , Y02B20/346 , Y02B70/126
Abstract: The invention relates to a ballast (101) for lighting means, comprising an actively switched power factor correction stage (102), which is implemented in a Totem Pole boost topology, comprising a control circuit (103), which issues control signals for driving switches of the PFC stage (102), wherein the control circuit (103) is on a floating potential and galvanically isolated from a ground potential of the ballast (101).
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公开(公告)号：US10057949B2
公开(公告)日：2018-08-21
申请号：US15494604
申请日：2017-04-24
Inventor： Masashi Motomura , Hirofumi Konishi , Kenichi Fukuda
IPC: H05B33/08 , F21S8/04 , F21V3/00 , F21V21/34 , F21V23/06 , H02M3/158 , H02M7/04 , H05B37/02 , F21Y115/10 , H02M1/00
CPC classification number: H05B33/0815 , F21S8/046 , F21V3/00 , F21V21/34 , F21V23/06 , F21Y2115/10 , H02M3/158 , H02M3/1588 , H02M7/04 , H02M2001/0048 , H05B33/0845 , H05B37/02 , Y02B20/346 , Y02B70/1466 , Y02B70/1491
Abstract: A signal transmitting device includes an input unit, an output unit, and a step-down circuit. The input unit is configured to receive an input voltage. The output unit is configured to output an output voltage. The step-down circuit is configured to controllably adjust the output voltage by stepping down the input voltage. The step-down circuit includes first and second capacitors, a switch circuit, an inductor, first and second diodes, and a control circuit. The switch circuit includes a series circuit of first and second switches. The control circuit is configured to control the first and second switches to change a voltage value of the output voltage in order to transmit transmission data from the output unit.
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公开(公告)号：US09985166B2
公开(公告)日：2018-05-29
申请号：US15609134
申请日：2017-05-31
Applicant: Raytheon Company
Inventor： Michael H. Robson , Michael T. Pace
CPC classification number: H01L31/18 , H05K1/0286 , H05K2201/0112 , H05K2201/0209 , H05K2201/10106 , Y02B20/346 , Y02P70/521
Abstract: A system to configure a conductive pathway and a method of forming a system of configurable conductivity pathways include a photosensitive layer that becomes conductive based on photoexcitation, and a light source layer deposited over the photosensitive layer, the light source layer selectively providing the photoexcitation to the photosensitive layer. The system further includes a controller to control the light source layer, the controller illuminating a portion of the light source layer corresponding with a user input image to photoexcite the photosensitive layer and configure the conductive pathway in the photosensitive layer according to the image.
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公开(公告)号：US09974123B2
公开(公告)日：2018-05-15
申请号：US15320313
申请日：2015-06-26
Applicant: PHILIPS LIGHTING HOLDING B.V.
Inventor： Shan Wang , Kai Qi Tian , Gang Wang
IPC: G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36 , H05B33/08 , G05F1/56 , H02M3/335 , H05B41/282 , H02M3/156
CPC classification number: H05B33/0812 , G05F1/56 , H02J1/10 , H02J2001/008 , H02M3/156 , H02M3/33507 , H02M2001/0045 , H02M2003/1566 , H05B33/0815 , H05B33/0848 , H05B33/0851 , H05B37/02 , H05B37/0272 , H05B41/2828 , Y02B20/346 , Y02B20/347 , Y10S362/80
Abstract: A power supply system uses a DC-DC power converter (28) for supplying an output load. A compensation circuit (40) is connected between the input to the DC-DC converter and the output of the DC-DC converter and it provides a compensating path in response to a voltage drop at the output of the DC-DC converter caused by a surge in the output load. The power supply system further comprises a low drop out regulator (30) as the output load, which low drop out regulator (30) having an input connected to the DC-DC power converter and the compensation circuit, and an output connected to an output terminal (C) for connection to a further output load. This enables the DC-DC power converter to have a low current capability, because a large current demand can be met by the DC supply to the DC-DC converter.
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公开(公告)号：US09970601B2
公开(公告)日：2018-05-15
申请号：US15372082
申请日：2016-12-07
Applicant: iLumisys, Inc.
Inventor： Jos Timmermans , Jean C. Raymond , John Ivey
IPC: H05B37/02 , F21K9/278 , F21V3/02 , H05B33/08 , F21K9/272 , F21V15/015 , F21V23/02 , F21V23/00 , F21K9/275 , F21Y115/10 , F21Y103/10
CPC classification number: F21K9/272 , B60Q3/80 , F21K9/275 , F21K9/278 , F21K9/60 , F21K9/66 , F21K9/90 , F21S4/28 , F21V3/02 , F21V15/015 , F21V19/003 , F21V19/008 , F21V23/00 , F21V23/005 , F21V23/009 , F21V23/02 , F21V23/023 , F21V23/06 , F21Y2103/10 , F21Y2115/10 , H01L25/13 , H01L2924/0002 , H05B33/0803 , H05B33/0809 , H05B33/0815 , H05B33/0818 , H05B33/0845 , H05B33/0848 , H05B37/02 , Y02B20/346 , Y02B20/386 , H01L2924/00
Abstract: A replacement light tube for replacing a fluorescent light tube includes a bulb portion extending between a first end and a second end, the bulb portion comprising a support structure, a plurality of white light emitting diodes (LEDs) and an elongate light-transmissive cover. The support structure has a first surface extending between the first end and the second end. The plurality of LEDs are supported by the first surface and arranged between the first end and the second end. The elongate light-transmissive cover extends between the first end and the second end and over the first surface of the support structure. A first end cap and a second end cap are disposed on the first end and the second end, respectively, each configured to fit with a socket for a fluorescent light tube. A power supply circuit is configured to provide power to the plurality of LEDs. The plurality of LEDs are arranged to emit light through the elongate light-transmissive cover and at least a portion of the power supply circuit is packaged inside at least one of the end caps.
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