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1. 发明申请

WO2023060635A1 一种高精度Q值快速检测电路及方法审中-公开
公开(公告)号：WO2023060635A1
公开(公告)日：2023-04-20
申请号：PCT/CN2021/124824
申请日：2021-10-20
申请人：无锡硅动力微电子股份有限公司
发明人：励晔 , 黄飞明 , 黄昊丹 , 贺洁
IPC分类号： G01R27/02 , G01R27/26 , H02J50/60
摘要：本发明公开了一种高精度Q值快速检测电路，涉及无线充电技术领域，该高精度Q值快速检测电路包括：LC谐振模块，用于产生谐振信号；过零检测计数模块，用于通过比较谐振信号与零电平信号，产生方波信号，通过计数器对方波个数进行计数；峰值电压采样保持模块，用于采样过零检测计数模块中谐振信号的峰值电压；电压电流信号转换模块，用于将采样的峰值电压转化为采样电流；对数运算模块，用于通过采样电流获取流过电阻的压降电流；与现有技术相比，本发明的有益效果是：本发明Q值通过电路单元直接计算得到，精度极高；Q值计算电路极为简单，不需要像现有技术一样需要ADC、MCU参与运算；Q值检测时间极短，在峰值电压采样后就可以计算得到。

2. 发明申请

WO2023057592A1 A CONTACTLESS POWER SUPPLY DEVICE, SYSTEM AND A METHOD FOR A FOREIGN OBJECT DETECTION 审中-公开
公开(公告)号：WO2023057592A1
公开(公告)日：2023-04-13
申请号：PCT/EP2022/077853
申请日：2022-10-06
申请人： ABB E-MOBILITY B.V.
发明人： BŁASZCZYK, Paweł , TOMBELLI, Fabio
IPC分类号： H02J50/60
摘要： A contactless power supply device (100) for a contactless charging system comprising a high frequency generator (11) for generating a high frequency waveform, an oscillation unit (12) with a primary coil (13) for generating an alternating flux and a control unit (14) for controlling operation of the high frequency generator (11). The output of the high frequency generator (11) is connected to the primary coil (13) of the oscillation unit (12) and the output of the control unit (14) is connected to the input of the high frequency generator (11). Furthermore, the contactless power supply device (10) comprises a measuring unit (15) configured to measure instantaneous values Imeas of alternating current of the primary coil (13) during a charging state, or to measure or calculate its RMS values IRMS, or to calculate the first derivative of the measured instantaneous values lmeas- or to calculate a second derivative of the measured instantaneous values lmeas. and the foreign object is detected when the instantaneous value lmeas is equal or greater than a set threshold value llimit, or the RMS value IRMS is equal or greater than a set threshold value of the RMS value IRMS limit, or the first derivative of the instantaneous value Imeas is equal or greater than a set threshold value of the first derivative limit, or the second derivative of the instantaneous value Imeas is equal or greater than a set threshold value of the second derivative.

3. 发明申请

WO2023044300A1 CIRCUIT FOR OBJECT DETECTION AND VEHICLE POSITION DETERMINATION 审中-公开
公开(公告)号：WO2023044300A1
公开(公告)日：2023-03-23
申请号：PCT/US2022/076345
申请日：2022-09-13
申请人： WITRICITY CORPORATION
发明人： WIDMER, Hans Peter , CASTRO FONSECA, José Pedro , DAETWYLER, Andreas , SIEBER, Lukas Frank
IPC分类号： H02J50/60 , H02J50/12 , H02J50/90 , B60L53/124 , G01V3/10 , G01V3/17 , H02J7/02
摘要： A multi-purpose detection circuit for object detection and vehicle position determination is described. For example, the circuit is configurable for detecting foreign metallic objects, living objects, and a vehicle or type of vehicle above an inductive wireless power transmitter. The circuit is also configurable for determining the vehicle's position relative to the inductive wireless power transmitter. An example apparatus includes a measurement circuit including a multiplexer, electrically connected to a plurality of inductive and capacitive sense circuits, for measuring one or more electrical characteristics in each of the inductive and capacitive sense circuits according to a predetermined time multiplexing scheme. The apparatus further includes a control and evaluation circuit for evaluating the measured electrical characteristics and determining at least one of a presence of a metallic object, a living object, a vehicle, or a type of vehicle, and a vehicle position based on changes in the measured electrical characteristics.

4. 发明申请

WO2023033430A1 전자 장치 및 이를 이용한 무선 충전 제어 방법 审中-公开
公开(公告)号：WO2023033430A1
公开(公告)日：2023-03-09
申请号：PCT/KR2022/012518
申请日：2022-08-22
申请人： 삼성전자 주식회사
发明人： 류지수 , 이승태
IPC分类号： H02J50/60 , H02J50/12 , H02J50/80 , H02J7/00 , G06F1/26 , G01K1/02 , H04L43/10
摘要： 본 개시의 다양한 실시예들에 따르면, 전자 장치는, 전력 수신 코일을 포함하는 전력 수신부, 배터리, 및 상기 전력 수신부 및 상기 배터리와 작동적으로 연결된 적어도 하나의 프로세서를 포함하고, 상기 적어도 하나의 프로세서는, 무선 충전 보호 모드의 진입 여부를 확인하고, 상기 무선 충전 보호 모드로 진입하지 않은 것으로 확인되는 경우, 전력 송신 장치로부터 상기 전력 수신부를 통해 제1 범위의 전력을 무선으로 수신하고, 상기 제1 범위의 전력을 이용하여 상기 배터리를 충전하며, 지정된 시간 동안 충전된 상기 배터리의 충전량을 확인하고, 및 상기 배터리의 충전량이 지정된 값 미만인 것으로 확인되는 경우, 금속성 이물(metal foreign object)이 존재하는 것으로 확인하고, 발열 제어 조건을 변경하도록 설정될 수 있다. 본 문서에 개시된 다양한 실시예들 이외의 다른 다양한 실시예가 가능할 수 있다.

5. 发明申请

WO2023027825A2 WIRELESS POWER MODE SWITCHING 审中-公开
公开(公告)号：WO2023027825A2
公开(公告)日：2023-03-02
申请号：PCT/US2022/037212
申请日：2022-07-14
申请人： APPLE INC.
发明人： SHI, Lixin , QIU, Weihong , XU, Zelin , MOUSSAOUI, Zaki , CHABALKO, Matthew, J.
IPC分类号： H02J50/90 , H02J50/10 , H02J50/12 , H02J50/40 , H02J50/60 , H02J50/80
摘要： An electronic device (that is capable of both transmitting and receiving wireless power) may be physically and inductively coupled to a removable accessory (that only receives wireless power). The electronic device and removable accessory may optionally be placed on a power transmitting device. In response to the electronic device and removable accessory being placed on a wireless power transmitting device, the electronic device may switch from a power transmitting mode (in which the electronic device transmits wireless power to the removable accessory) to a power receiving mode (in which the electronic device receives wireless power from the wireless power transmitting device). To ensure the electronic device detects the wireless power transmitting device and switches to the power receiving mode in this scenario, the electronic device may transmit wireless power in bursts separated by sleep periods while in the power transmitting mode.

6. 发明申请

WO2023285632A1 INDUCED ELECTROMOTIVE FORCE MEASUREMENT SYSTEM FOR INDUCTIVE POWER TRANSFER 审中-公开
公开(公告)号：WO2023285632A1
公开(公告)日：2023-01-19
申请号：PCT/EP2022/069813
申请日：2022-07-14
申请人： IMPERIAL COLLEGE INNOVATIONS LIMITED
发明人： PUCCI, Nunzio , ARTEAGA, Juan , MITCHESON, Paul
IPC分类号： H02J50/12 , H02J50/60
摘要： Disclosed herein are methods and systems of determining a magnetically induced voltage on a coil of a wireless power transmission device. The method comprises supplying DC input power to the wireless power transmission device. It further comprises monitoring a first variable associated with the wireless power transmission device, and monitoring a second variable associated with the wireless power transmission device, wherein at least one of the first and the second variable is derived from a switching waveform. It further comprises determining, based on at least one of the first variable, the second variable, and the relationship between the first variable and the second variable, the magnetically induced voltage on the coil of the wireless power transmission device.

7. 发明申请

WO2022255094A1 送電装置および受電装置审中-公开
公开(公告)号：WO2022255094A1
公开(公告)日：2022-12-08
申请号：PCT/JP2022/020582
申请日：2022-05-17
申请人：キヤノン株式会社
发明人：平松　朋樹
IPC分类号： H02J50/60 , H02J50/10 , H02J50/80
摘要：送電装置は、受電装置に無線送電する送電装置であって、受電装置とは異なる物体の存在確率を決定するために用いるパラメータを取得する取得手段と、取得手段により取得されるパラメータに基づいて、物体の存在確率を決定する決定手段と、決定手段により決定された物体の存在確率に基づいて、物体の存在確率を特定するための情報を含む信号を受電装置に送信する送信手段とを有し、送信手段は、決定手段により決定された物体の存在確率が閾値より小さい場合、信号にパラメータの再取得に係る処理を要求する情報を含めて、信号を送信し、決定手段により決定された物体の存在確率が閾値より大きい場合、信号にパラメータの再取得に係る処理を要求する情報を含めずに信号を送信する。

8. 发明申请

WO2022215848A1 무선전력전송장치 및 무선전력전송장치의 제어 방법 审中-公开
公开(公告)号：WO2022215848A1
公开(公告)日：2022-10-13
申请号：PCT/KR2022/001864
申请日：2022-02-07
申请人： 삼성전자주식회사
发明人： 강동오 , 주정석 , 김수암 , 김재진 , 박남주
IPC分类号： H02J50/60 , H02J50/00 , H02J50/80 , H02J50/70
摘要： 개시된 무선전력전송장치는, 하우징; 상기 하우징 상부에 결합되는 플레이트; 상기 하우징 내부에 위치하고, 상기 플레이트 상에 위치하는 전자장치로 무선 전력을 전송하는 전력송신코일; 상기 플레이트와 상기 전력송신코일 사이에 위치하고, 안테나와 복수의 FOD(Foreign Object Detection) 코일들이 형성된 적어도 하나의 레이어를 포함하는 인쇄회로기판; 상기 전력송신코일 및 상기 인쇄회로기판과 전기적으로 연결되는 프로세서; 및 상기 안테나와 상기 프로세서의 연결 또는 상기 복수의 FOD 코일들과 상기 프로세서의 연결을 전환하는 스위치;를 포함한다.

9. 发明申请

WO2022214050A1 充电配对方法、装置、电子设备、系统及存储介质审中-公开
公开(公告)号：WO2022214050A1
公开(公告)日：2022-10-13
申请号：PCT/CN2022/085689
申请日：2022-04-08
申请人：中国第一汽车股份有限公司
发明人：张天强 , 胡越 , 梁士福 , 王金明 , 李威
IPC分类号： B60L53/126 , B60L53/124 , B60L53/65 , B60L53/66 , H02J50/60 , H02J50/80
摘要：本发明实施例公开了一种充电配对方法、装置、电子设备、系统及存储介质，充电配对方法包括：在基于目标配对信息与车辆进行匹配后，开启异物检测板；利用异物检测板检测该车辆；及若检测到该车辆，则向该车辆发送配对成功通知信息，若未检测到该车辆，则向该车辆发送配对失败通知信息。本发明实施例能够在不新增设备、不增加系统成本和结构复杂度的情况下，提高配对准确率，保证充电过程的电气安全。

10. 发明申请

WO2022197348A1 MODULAR MAGNETIC FLUX CONTROL 审中-公开
公开(公告)号：WO2022197348A1
公开(公告)日：2022-09-22
申请号：PCT/US2022/011868
申请日：2022-01-10
申请人： MOMENTUM DYNAMICS CORPORATION
发明人： SCHRAFEL, Peter C. , MCMAHON, Francis J. , WARD, Matthew L.
IPC分类号： H02J50/12 , H01F38/14 , H02J7/00 , H02J50/40 , H02J50/50 , H02J50/60
摘要： Modular coil assemblies for wireless charging of vehicles have coil geometries and communications designed to limit electromagnetic field (EMF) levels in regions where humans or other living objects may be present. The modular coil assemblies are designed with the ability to shape the magnetic field to be predominately within shielding provided by the auto chassis by, for example, providing side-by-side phase cancellation or diagonal versus front-to-back (for 1x3, 2x3 array configurations) phase cancellation. The power levels and frequency offset pairwise compensation of the respective coils may be controlled to improve cancellation and thus to reduce magnetic field exposure potential. The phase cancellation of the magnetic flux density from respective coil assemblies varies over a range to provide, for example, ~50% cancellation at 125° offset and up to ~100% cancellation at 180°. Charging profiles for vehicles and charging stations may be used to maximize the magnetic flux density cancellation during charging.

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