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公开(公告)号：US20240291376A1
公开(公告)日：2024-08-29
申请号：US18541309
申请日：2023-12-15
IPC分类号： H02M1/08 , H02M1/088 , H02M1/32 , H02M5/257 , H02M5/293 , H02M7/06 , H05B39/04 , H05B45/10 , H05B45/37 , H05B45/3725
CPC分类号： H02M1/081 , H02M1/088 , H02M1/32 , H02M5/2573 , H02M5/293 , H02M7/06 , H05B39/04 , H05B39/044 , H05B39/048 , H05B45/10 , H05B45/37 , H05B45/3725 , H02M1/0006 , H02M1/0012 , H05B45/375 , H05B45/38 , H05B45/39
摘要： A load control device for controlling the power delivered from an AC power source to an electrical load includes a thyristor, a gate coupling circuit for conducting a gate current through a gate of the thyristor, and a control circuit for controlling the gate coupling circuit to conduct the gate current through a first current path to render the thyristor conductive at a firing time during a half cycle. The gate coupling circuit is able to conduct the gate current through the first current path again after the firing time, but the gate current is not able to be conducted through the gate from a transition time before the end of the half-cycle until approximately the end of the half-cycle. The load current is able to be conducted through a second current path to the electrical load after the transition time until approximately the end of the half-cycle.
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公开(公告)号：US11983356B2
公开(公告)日：2024-05-14
申请号：US18210191
申请日：2023-06-15
IPC分类号： G06F3/041 , G06F3/044 , G08C17/00 , H03K17/96 , H05B39/04 , H05B45/10 , H05B45/20 , H05B47/10 , H05B47/175 , H05K1/16
CPC分类号： G06F3/0416 , G06F3/044
摘要： A control device configured for use in a load control system to control one or more electrical loads may comprise an actuation member having a front surface defining a touch sensitive surface configured to detect a point actuation along at least a portion of the front surface, a touch sensitive circuit, and a control circuit. The touch sensitive device may comprise one or more receiving capacitive touch pads located behind the actuation member and arranged in a linear array adjacent to the touch sensitive surface. The control circuit may be configured to operate using different filtering techniques based on the state/mode of the control device and/or based on whether the positions of point actuations by a user along the touch sensitive surface indicate a fine tune or gross adjustment by the user. For example, the control circuit may generate an output signal using light/no filtering or using heavy filtering.
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公开(公告)号：US11924932B2
公开(公告)日：2024-03-05
申请号：US17676883
申请日：2022-02-22
IPC分类号： H05B45/10 , 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.
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公开(公告)号：US11774995B2
公开(公告)日：2023-10-03
申请号：US17895139
申请日：2022-08-25
IPC分类号： G05F1/66 , G06F1/26 , H05B39/04 , H05B47/175 , G05B15/02 , G05F1/12 , G01R21/133
CPC分类号： G05F1/66 , G05B15/02 , G05F1/12 , G06F1/26 , H05B39/04 , H05B47/175 , G01R21/133 , Y02B20/00
摘要： A two-wire load control device may be configured to compute an accurate estimate of real-time power consumption by a load that is electrically connected to, and controlled by, the two-wire load control device. The load control device may be adapted to measure a voltage drop across the device during a first portion of a half-cycle of an AC waveform provided to the device. The device may be further configured to estimate a voltage drop across the load during the second portion of the half-cycle. The estimated voltage drop may be based on the measured voltage drop. The device may be further configured to measure a current supplied to the load during a second portion of the half-cycle. The device may be configured to estimate power consumed by the load based on the measured current and the estimated voltage drop.
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公开(公告)号：US20230299658A1
公开(公告)日：2023-09-21
申请号：US18321881
申请日：2023-05-23
CPC分类号： H02M1/081 , H02M1/32 , H02M7/217 , H02M7/125 , H03K17/168 , H05B39/044 , H05B45/50 , H02M1/083
摘要： A load control device for controlling power delivered from an alternating-current power source to an electrical load may comprise a controllably conductive device, a control circuit, and an overcurrent protection circuit that is configured to be disabled when the controllably conductive device is non-conductive. The control circuit may be configured to control the controllably conductive device to be non-conductive at the beginning of each half-cycle of the AC power source and to render the controllably conductive device conductive at a firing time during each half-cycle (e.g., using a forward phase-control dimming technique). The overcurrent protection circuit may be configured to render the controllably conductive device non-conductive in the event of an overcurrent condition in the controllably conductive device. The overcurrent protection circuit may be disabled when the controllably conductive device is non-conductive and enabled after the firing time when the controllably conductive device is rendered conductive during each half-cycle.
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公开(公告)号：US20230223833A1
公开(公告)日：2023-07-13
申请号：US18174064
申请日：2023-02-24
IPC分类号： H02M1/08 , H05B45/37 , H05B39/04 , H02M7/06 , H02M1/088 , H05B45/3725 , H02M1/32 , H05B45/10 , H02M5/293 , H02M5/257 , H02M1/00 , H05B45/39 , H05B45/375 , H05B45/38
CPC分类号： H02M1/081 , H02M1/32 , H02M1/088 , H02M5/293 , H02M5/2573 , H02M7/06 , H05B39/04 , H05B39/044 , H05B39/048 , H05B45/10 , H05B45/37 , H05B45/3725 , H02M1/0006 , H02M1/0012 , H05B45/38 , H05B45/39 , H05B45/375
摘要： A load control device for controlling the power delivered from an AC power source to an electrical load includes a thyristor, a gate coupling circuit for conducting a gate current through a gate of the thyristor, and a control circuit for controlling the gate coupling circuit to conduct the gate current through a first current path to render the thyristor conductive at a firing time during a half cycle. The gate coupling circuit is able to conduct the gate current through the first current path again after the firing time, but the gate current is not able to be conducted through the gate from a transition time before the end of the half-cycle until approximately the end of the half-cycle. The load current is able to be conducted through a second current path to the electrical load after the transition time until approximately the end of the half-cycle.
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公开(公告)号：US11699946B2
公开(公告)日：2023-07-11
申请号：US17587349
申请日：2022-01-28
IPC分类号： H02M1/08 , H02M1/32 , H02M7/12 , H05B45/10 , H05B45/31 , H02M7/217 , H03K17/16 , H05B39/04 , H05B45/50
CPC分类号： H02M1/081 , H02M1/083 , H02M1/32 , H02M7/125 , H02M7/217 , H03K17/168 , H05B39/044 , H05B45/50
摘要： A load control device for controlling power delivered from an alternating-current power source to an electrical load may comprise a controllably conductive device, a control circuit, and an overcurrent protection circuit that is configured to be disabled when the controllably conductive device is non-conductive. The control circuit may be configured to control the controllably conductive device to be non-conductive at the beginning of each half-cycle of the AC power source and to render the controllably conductive device conductive at a firing time during each half-cycle (e.g., using a forward phase-control dimming technique). The overcurrent protection circuit may be configured to render the controllably conductive device non-conductive in the event of an overcurrent condition in the controllably conductive device. The overcurrent protection circuit may be disabled when the controllably conductive device is non-conductive and enabled after the firing time when the controllably conductive device is rendered conductive during each half-cycle.
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公开(公告)号：US20230180359A1
公开(公告)日：2023-06-08
申请号：US18154907
申请日：2023-01-16
IPC分类号： H05B39/08 , H05B47/185 , H05B47/165 , H05B47/17 , H05B47/10 , H05B39/04 , G11C5/00 , G11C5/02 , G11C7/04 , G11C7/24 , G11C11/406 , G11C29/12
CPC分类号： H05B39/086 , H05B47/185 , H05B47/165 , H05B47/17 , H05B47/10 , H05B39/04 , G11C5/005 , G11C5/025 , G11C7/04 , G11C7/24 , G11C11/40626 , G11C29/12
摘要： A load control device may include a semiconductor switch, a control circuit, and first and second terminals adapted to be coupled to a remote device. The load control device may include a first switching circuit coupled to the second terminal, and a second switching circuit coupled between the first terminal and the second terminal. The control circuit may be configured to render the first switching circuit conductive to conduct a charging current from an AC power source to a power supply of the remote device during a first time period of a half-cycle of the AC power source, and further configured to render the first and second switching circuits conductive and non-conductive to communicate with the remote device via the second terminal during a second time period of the half-cycle of the AC power source.
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公开(公告)号：US11615733B2
公开(公告)日：2023-03-28
申请号：US17313581
申请日：2021-05-06
申请人： Lumileds LLC
摘要： A LED controller includes an image buffer to hold image data. An LED pixel forming a part of a large pixel array is activatable in response to image data, LDO state, and pulse width modulation module state. A logic module including a pixel diagnostic mode using an LDO bypass is connected to modify LDO state and allow direct addressing of the LED pixel for diagnostic purposes without needing to use image data from the image buffer.
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10.发明授权公开(公告)号：US11575849B2
公开(公告)日：2023-02-07
申请号：US16689579
申请日：2019-11-20
发明人： Keun Joo Park , Junseok Kim , Yohan Roh , Hyunsurk Ryu , Jooyeon Woo , Hyunku Lee
IPC分类号： H04N5/3745 , H04N5/341 , H05B39/04 , G06F16/23 , G06F16/583 , H04N5/367 , H04N5/369 , H05B47/11 , H05B47/16 , H05B47/155
摘要： An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.
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