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公开(公告)号：US11031777B2
公开(公告)日：2021-06-08
申请号：US16421987
申请日：2019-05-24
发明人： Sungyong Joo , Sunjin Park
摘要： An electronic apparatus is provided. The electronic apparatus according to an embodiment includes a main circuit unit, a power source supplier configured to generate power, and supply the generated power to the main circuit unit, and a surge protector disposed between the main circuit unit and the power source supplier, the surge protector being configured to, based on a surge occurring from the power source supplier, perform a clamping operation on power output from the power source supplier at a first voltage level, wherein the power source supplier is further configured to, based on the clamping operation of the surge protector at the first voltage level being stopped, perform a clamping operation on the generated power at a second voltage level greater than the first voltage level.
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公开(公告)号：US11026311B2
公开(公告)日：2021-06-01
申请号：US16009783
申请日：2018-06-15
申请人： ABL IP Holding LLC
发明人： Ray Altenburger , Dean W. Mavis , Gunjan P. Patel
IPC分类号： H05B45/50 , H02J7/00 , H02J9/06 , H05B45/00 , H05B45/37 , H05B47/105 , H02J7/02 , F21V23/02 , F21Y115/10 , F21S9/02
摘要： An emergency LED lighting system maintains power to an LED lighting source based on measured voltages and currents provided to the LED lighting source; rolls back or decreases power provided to an LED lighting source over time in order to increase the amount of time the battery can power the LED lighting source; executes a soft start procedure, such that the power provided to the LED lighting source is gradually ramped up during activation of the LED lighting sources; identifies a type of battery coupled to the emergency LED lighting system; cycles the emergency LED lighting system between charging mode and standby mode to reduce power consumption over a window of time; detects AC power or an absence of AC power; and/or uses a status LED to communicate information about the emergency LED lighting system with a remote device.
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公开(公告)号：US11026308B2
公开(公告)日：2021-06-01
申请号：US16434361
申请日：2019-06-07
发明人： Huiqiang Chen , Zhishuo Wang , Jianxin Wang
摘要： A power converter can include: a rectifier circuit; a silicon controlled dimmer coupled between an AC input terminal and an input terminal of the rectifier circuit; and a bleeder circuit coupled to an output terminal of the rectifier circuit, and being configured to provide a bleeder current after the silicon controlled dimmer is turned off. A method of controlling a power converter, can include: generating a bleeder current flowing though output terminals of a rectifier circuit of the power converter after a silicon controlled dimmer is turned off; and where the silicon controlled dimmer coupled to the rectifier circuit receives an AC input voltage.
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公开(公告)号：US11019702B2
公开(公告)日：2021-05-25
申请号：US16703055
申请日：2019-12-04
申请人： SIGNIFY HOLDING B.V.
发明人： Julia Delos Ayllon
摘要： A driver is provided for driving at least two sets of solid state lighting elements. A switched capacitor power converter is provided, and a switch arrangement is used for selectively connecting a first set and a second set of solid state lighting elements in series connection at the output of the power converter or connecting the first set of solid state lighting elements at the output of the power converter without the second set of solid state lighting elements. A first duty cycle of the switched capacitor power converter and a second duty cycle control of the switch arrangement are both controlled.
In this driver design, a switched capacitor power converter and a switch arrangement are independently controlled using a duty cycle approach. The switched capacitor power converter is used to provide current control, and the switch arrangement is used to control whether the second set of lighting elements is connected to the output or not.-
公开(公告)号：US11019696B2
公开(公告)日：2021-05-25
申请号：US16185405
申请日：2018-11-09
发明人： Junyue Sun , Yufeng Zou , Huibin Cao , Lijie Chen
IPC分类号： H05B45/37 , H05B45/10 , H05B45/397 , H05B45/395
摘要： A method and apparatus for operating a semiconductor light source is presented. In particular there is a current regulator for regulating a current flowing through a light emitting diode device. The current regulator includes a first switch for receiving a first current flowing through the semiconductor light source and a control circuit coupled to the first switch and adapted to provide a second current proportional to the first current. The current regulator is adapted to regulate the first current using the second current.
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公开(公告)号：US20210153317A1
公开(公告)日：2021-05-20
申请号：US17158792
申请日：2021-01-26
申请人： Hubbell Incorporated
摘要： Lighting systems and methods implementing toggle control are provided. In one example implementation, a lighting system can include a first LED array having one or more LED devices and a second LED array having one or more LED devices. The system can further include a single throw circuit interrupter configured to receive power from a power source. The system can further include a power conversion circuit configured to convert an input power received via the toggle switch to a power output for the first LED array and the second LED array. The power conversion circuit can be configured to control a power distribution ratio between the first LED array and the second LED array based at least in part on a detected toggle input (e.g., a toggle pattern) implemented using the single throw circuit interrupter.
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公开(公告)号：US11009899B2
公开(公告)日：2021-05-18
申请号：US15777832
申请日：2016-08-23
发明人： Kengo Shima , Daisuke Aoki , Satoki Uruno , Junichi Matsubara
IPC分类号： G05F1/56 , G05F3/26 , H05B45/10 , H05B45/37 , H05B45/395 , B60R16/033
摘要： A semiconductor integrated circuit includes a constant-voltage circuit that outputs a constant voltage and a constant-current circuit. The constant-current circuit includes a first transistor. A voltage input as an input voltage to a first gate electrode of the first transistor is equal to the node voltage at an intermediate node in a connection path between the output of the constant-voltage circuit and an external resistor. A source region of the first transistor is connected to a fixed power supply, and a drain region of the first transistor is connected to the external power supply via a load. In the first transistor, a constant current can be made to flow between the source region and the drain region based on the input voltage. A constant-current drive system in which the semiconductor integrated circuit and the external resistor have been mounted on a circuit board is also constructed.
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98.发明申请公开(公告)号：US20210144833A1
公开(公告)日：2021-05-13
申请号：US17156912
申请日：2021-01-25
发明人： Virginie DRUGEON , Takahiro NISHI , Tadamasa TOMA
IPC分类号： H05B47/10 , H04N21/2343 , H04N21/236 , H04N21/4402 , H04N19/70 , H04N21/434 , H04N19/85 , H04N19/98 , H05B45/37 , H05B47/11 , H05B47/19 , H04N7/01 , H02M1/084 , H02M1/14
摘要： A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.
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99.发明授权公开(公告)号：US11006499B2
公开(公告)日：2021-05-11
申请号：US16871909
申请日：2020-05-11
发明人： Tsung-Wen Huang , Shih-Chung Cheng , Chih-Ming Kao
摘要： The invention provides a control method for sets of series-parallel-connected LEDs via a single wire. Step 1: providing an LED circuit including a control module and a light-emitting module. The light-emitting module includes LED strings connected to one another in parallel. Each of the LED strings includes a plurality of LED units connected in series to one another, and at least one counter comprising a counter start time different from that of another. Step 2: sending a setting signal by the control module, and allocating one identification code obtained sequentially in time to one of the LED string according to the different counter start times of the LED strings. Step 3: sending a designation signal to the light-emitting module by the control module, such that the LED string with the corresponding identification value is selected and independently controlled by the control module.
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公开(公告)号：US11002441B2
公开(公告)日：2021-05-11
申请号：US16515939
申请日：2019-07-18
发明人： Shungen Sun , Weijia Yu
摘要： The present disclosure provides a leakage protection circuit, a method and a drive device. The leakage protection circuit is used for being electrically connected with the power supply line of a load, and may be configured to sample the power supply line at intervals, detect the voltage of the sampled electrical signals to determine whether the voltage of the AC input power is divided, and provide leakage protection based on the determined result. The present disclosure can prevent human from electric shock through sampling the electric signals from the power supply line at intervals and performing voltage detection and comparison to determine whether the voltage of the accessed AC input power is divided, when the voltage of the accessed AC input power is determined to be divided, the power supply line will be controlled in non-conductive state.
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