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公开(公告)号：US20210218286A1
公开(公告)日：2021-07-15
申请号：US17141056
申请日：2021-01-04
申请人： AIRA, INC.
摘要： A charging stand placeable on a charging surface has a receiver circuit in a base configured to receive power from a wireless charging device through a receiving coil in the base. A support of the charging stand has a transmitting coil configured to transmit power to a chargeable device mounted on the support, and a power transfer circuit receives an induced current from the receiving coil in the base and provides a charging current to the transmitting coil. An energy storage device is configured to receive the induced current or a rectified current. A transmitter circuit is configured to provide the charging current to the transmitting coil. A sensor is configured to detect whether the chargeable device is mounted on the support, and a controller may be configured to power-down the power transfer circuit when chargeable device is not mounted on the support.
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公开(公告)号：US20210152026A1
公开(公告)日：2021-05-20
申请号：US16952701
申请日：2020-11-19
申请人： AIRA Inc.
摘要： A charging device has a first printed circuit board (PCB) having a top metal layer and a bottom metal layer, where a first plurality of charging cells is provided on the top metal layer of the first PCB and a second plurality of charging cells is provided on the bottom metal layer of the first PCB. The charging device may have a second PCB having a top metal layer and a bottom metal layer, where a third plurality of charging cells is provided on the top metal layer of the second PCB and a fourth plurality of charging cells is provided on the bottom metal layer of the second PCB. An adhesive layer may join the first and second PCBs. One or more interconnects may be provided between the bottom metal layer of the first PCB and the top metal layer of the second PCB.
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公开(公告)号：US10958110B2
公开(公告)日：2021-03-23
申请号：US16885247
申请日：2020-05-27
申请人： AIRA, Inc.
摘要： Systems, methods and apparatus for wireless charging are disclosed. A method for decoding data includes demodulating voltage or current waveform in each tank circuit of a plurality of inductive power transfer circuits to obtain at least one demodulated signal from each tank circuit, capturing a bit sequence from each demodulated signal by clocking signal state of each demodulated signal through a direct memory access (DMA) circuit, streaming bit sequences received from the DMA circuit into a plurality of data streams, and decoding one or more messages from the plurality of data streams.
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公开(公告)号：US20210028655A1
公开(公告)日：2021-01-28
申请号：US16936356
申请日：2020-07-22
申请人： AIRA, INC.
摘要： Systems, methods and apparatus for providing a wireless charging device are disclosed. A method for operating the wireless charging device includes transmitting a first pulse through each of a plurality of charging circuits, determining peak voltage at nodes in the plurality of charging circuits, each node coupling a transmitting coil to a capacitor in one charging circuit in the plurality of charging circuits, the peak voltage at each node being responsive to the first pulse and indicative of a coupling coefficient with a receiving coil in a chargeable device, determining that a minimum peak voltage responsive to the first pulse is associated with a first charging circuit in the plurality of charging circuits, and providing a first charging current to the first charging circuit.
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公开(公告)号：US20210028651A1
公开(公告)日：2021-01-28
申请号：US16936361
申请日：2020-07-22
申请人： AIRA, Inc.
IPC分类号： H02J50/12 , G01L1/22 , G01P15/00 , G01V3/08 , G01V8/12 , G01V1/00 , G01R19/12 , H02J7/04 , H02J50/90 , H02J7/00 , H02J50/40
摘要： Systems, methods and apparatus for wireless charging are disclosed. A charging device has a plurality of charging cells provided on a charging surface, a charging circuit and a controller. The controller may be configured to cause the charging circuit to provide a charging current to a resonant circuit when a receiving device is placed on the charging surface, provide a measurement slot by causing the charging circuit to decrease or terminate the charging current for a period of time and determine whether the receiving device has been removed from the charging surface based on measurement of a characteristic of the resonant circuit during the measurement slot. The characteristic of the resonant circuit may be representative of electromagnetic coupling between a transmitting coil in the resonant circuit and a receiving coil in the receiving device.
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公开(公告)号：US20200381959A1
公开(公告)日：2020-12-03
申请号：US16885247
申请日：2020-05-27
申请人： AIRA, Inc.
摘要： Systems, methods and apparatus for wireless charging are disclosed. A method for decoding data includes demodulating voltage or current waveform in each tank circuit of a plurality of inductive power transfer circuits to obtain at least one demodulated signal from each tank circuit, capturing a bit sequence from each demodulated signal by clocking signal state of each demodulated signal through a direct memory access (DMA) circuit, streaming bit sequences received from the DMA circuit into a plurality of data streams, and decoding one or more messages from the plurality of data streams.
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