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1.发明公开公开(公告)号：US20230198303A1
公开(公告)日：2023-06-22
申请号：US18063452
申请日：2022-12-08
发明人： Feng Yu , Lulu Song , Lizhi Xu , Weiyi Feng
CPC分类号： H02J50/005 , H02J50/12 , H02J50/40
摘要： The present disclosure discloses a wireless charging additional apparatus and wireless power transmitting and receiving apparatuses, the wireless charging additional apparatus includes a first planar coil, a second planar coil, and a connecting part, the first planar coil and the second planar coil respectively include a plurality of coil turns, and the connecting part connects leading-out ends of the first planar coil and the second planar coil, where the first planar coil, the second planar coil and the connecting part are connected in series, the first planar coil is provided inside the second planar coil, and current directions in the first planar coil and the second planar coil are opposite. Thus, according to the present disclosure, by providing a certain winding mode of a coil, efficiency of wireless charging can be improved, and loss is reduced.
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公开(公告)号：US11025097B2
公开(公告)日：2021-06-01
申请号：US16033968
申请日：2018-07-12
发明人： Feng Yu , Weiyi Feng , Hengyi Su , Min Fu , Cong Yin
IPC分类号： H02J7/00 , H02J7/14 , H02J50/40 , H04W24/08 , H02J7/02 , H02J50/90 , H02J50/80 , H02J50/12 , G06Q30/04 , H04L29/06 , H04B5/00
摘要： A wireless charging management system and a wireless power transmitting terminal are disclosed. By managing a plurality of wireless power transmitting terminals distributed at different geographic positions through a server, the user can obtain position information and state information of the wireless power transmitting terminal through the client terminal, and at the meanwhile, the wireless power transmitting terminal can operate in response to the control of the server, which enables the user to use the wireless charging device in a shared manner conveniently.
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公开(公告)号：US20220115911A1
公开(公告)日：2022-04-14
申请号：US17487841
申请日：2021-09-28
发明人： Feng Yu , Lizhi Xu , Weiyi Feng , Min Fu
IPC分类号： H02J50/12
摘要： A wireless power transmitting terminal and control method are disclosed. The wireless power transmitting terminal including an inverter circuit, a resonance circuit and a controller, wherein in a frequency detection state, an alternating current of the inverter circuit is controlled to switch between different candidate frequencies, so as to determine a resonance frequency and a maximum peak value of an electrical parameter of the alternating current at the resonance frequency, and determine an operating state of the power transmitting terminal according to the change of the maximum peak value. Therefore, the wireless power transmitting terminal can dynamically adjust in real time a preset operating state thereof, thereby improving the device adaptability, and avoiding the damage of the device to be charged.
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公开(公告)号：US20220077720A1
公开(公告)日：2022-03-10
申请号：US17461104
申请日：2021-08-30
发明人： Lizhi Xu , Weiyi Feng , Feng Yu
摘要： A coil module, power transmitting circuit and power receiving circuit are disclosed. The coil module including at least two parallel branches, wherein each parallel branch includes a coil and a first capacitor which are connected in series; the capacitances of the first capacitors are set to reduce or eliminate an equivalent impedance difference between the parallel branches. Therefore, the loss is reduced and the wireless charging efficiency is improved while ensuring the charging rate and the charging degree of freedom.
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公开(公告)号：US11018527B2
公开(公告)日：2021-05-25
申请号：US16012142
申请日：2018-08-09
发明人： Feng Yu , Weiyi Feng
摘要： A wireless power supply assembly and an electronic device are disclosed. By providing a gap between the magnetic sheet and the coil, dense magnetic lines of force closely abutting the coil pass through the gap to avoid passing through the magnetic sheet, thereby reducing loss due to the magnetic sheet. At the meanwhile, it is also possible to further avoid significant changes in coil inductance parameters caused by horizontal offset between the coil and the magnetic sheet due to installation errors, reduce the sensitivity of the resonance compensation capacitance of the wireless power supply assembly to the position and further reduce the loss. The present disclosure can effectively reduce the loss of the wireless power supply system and improve wireless power transmission efficiency.
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公开(公告)号：US11837885B2
公开(公告)日：2023-12-05
申请号：US17461104
申请日：2021-08-30
发明人： Lizhi Xu , Weiyi Feng , Feng Yu
CPC分类号： H02J50/70 , H01F27/2871 , H01F27/36 , H01F38/14 , H02J50/12 , H02J50/402
摘要： A coil module, power transmitting circuit and power receiving circuit are disclosed. The coil module including at least two parallel branches, wherein each parallel branch includes a coil and a first capacitor which are connected in series; the capacitances of the first capacitors are set to reduce or eliminate an equivalent impedance difference between the parallel branches. Therefore, the loss is reduced and the wireless charging efficiency is improved while ensuring the charging rate and the charging degree of freedom.
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公开(公告)号：US11705758B2
公开(公告)日：2023-07-18
申请号：US17487841
申请日：2021-09-28
发明人： Feng Yu , Lizhi Xu , Weiyi Feng , Min Fu
IPC分类号： H02J50/12
CPC分类号： H02J50/12 , H02J2310/58
摘要： A wireless power transmitting terminal and control method are disclosed. The wireless power transmitting terminal including an inverter circuit, a resonance circuit and a controller, wherein in a frequency detection state, an alternating current of the inverter circuit is controlled to switch between different candidate frequencies, so as to determine a resonance frequency and a maximum peak value of an electrical parameter of the alternating current at the resonance frequency, and determine an operating state of the power transmitting terminal according to the change of the maximum peak value. Therefore, the wireless power transmitting terminal can dynamically adjust in real time a preset operating state thereof, thereby improving the device adaptability, and avoiding the damage of the device to be charged.
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公开(公告)号：US11657958B2
公开(公告)日：2023-05-23
申请号：US16818454
申请日：2020-03-13
发明人： Feng Yu , Weiyi Feng , Lizhi Xu
摘要： A coil module and a wireless power transmitting circuit using the same are disclosed. At least three sets of coils are configured to be connected in series and overlapped each other, which may, in one hand, increase the coupling coefficient between the power transmitting coil and the power receiving coil, and in the other hand, make the alternating magnetic field generated by the coil module more concentrated so as to reduce negative influences caused by the strayed magnetic field around the coil module.
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公开(公告)号：US20220360121A1
公开(公告)日：2022-11-10
申请号：US17727248
申请日：2022-04-22
发明人： Cong Yin , Tao Ma , Feng Yu , Weiyi Feng
摘要： Disclosed in embodiments of the present disclosure are a wireless power transmitting apparatus and a wireless charging system. The wireless power transmitting apparatus comprises a wireless power transmitting coil, first magnet units and a second magnet unit. The first magnet units arranged at intervals around the wireless power transmitting coil, and the second magnet unit arranged in the center of the wireless power transmitting coil. The wireless charging system comprises the wireless power transmitting apparatus and a wireless power receiving apparatus, which comprises a wireless power receiving coil and magnet units arranged around or at the center of the wireless power receiving coil. Therefore, the technical scheme of the embodiments of the present disclosure can magnetically attract a variety of wireless power equipment for wireless charging, and can provide good adaptability and strong usability.
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公开(公告)号：US10714979B2
公开(公告)日：2020-07-14
申请号：US16003320
申请日：2018-06-08
发明人： Feng Yu , Weiyi Feng
摘要： A wireless power receiving terminal and a wireless charging system are disclosed. A switch is arranged between any one of the input ports and any one of the output ports of a full-bridge rectifying circuit for switching the operation mode of the rectifying circuit. The full-bridge rectifying circuit operates normally when the switch is turned off. A portion of rectifying components in the full-bridge rectifying circuit operate in a half-bridge multiplying mode and the other portion of the rectifying components are short-circuited and do not operate when the switch is turned on. Thus, the rectifying mode of the rectifying circuit and then an output voltage of the rectifying circuit are adjustable, and the operation voltage range of the wireless electric energy receiving terminal is expanded and the wireless power receiving terminal can operate normally when the magnetic field intensity is relatively high or relatively low. And at the meanwhile, it is also possible to provide a post-stage circuit (such as DC-DC converter) with relatively small operation voltage range to reduce the cost.
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