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公开(公告)号：EP2871761B1
公开(公告)日：2019-01-16
申请号：EP14809745.4
申请日：2014-03-11
发明人： ZHENG, Feng , PEI, Changsheng , ZHU, Yongfa
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公开(公告)号：EP3346476A1
公开(公告)日：2018-07-11
申请号：EP16899255.0
申请日：2016-11-23
发明人： YANG, Heqian , ZHU, Yongfa , LUO, Xiaolong
CPC分类号： H01F27/24 , H01F3/14 , H01F17/00 , H01F17/04 , H01F27/245 , H01F27/2804 , H01F27/30 , H01F27/306 , H01F27/38 , H01F41/0206 , H02M3/155
摘要： A thin film inductor is disclosed. The thin film inductor includes a thin film magnetic core (110). The thin film magnetic core includes a plurality of magnetic cylinders, a first end portion (120), and a second end portion (130). The plurality of magnetic cylinders are all rod-shaped and are separated from each other. One end of each magnetic cylinder is in contact with the first end portion (120), and the other end thereof is in contact with the second end portion (130). The plurality of magnetic cylinders include at least two winding magnetic cylinders (140) and one non-winding magnetic cylinder (150), and the non-winding magnetic cylinder (150) is located on one side of the at least two winding magnetic cylinders (140). Alternatively, the plurality of magnetic cylinders include at least two winding magnetic cylinders (140) and two non-winding magnetic cylinders (150), and the at least two winding magnetic cylinders (140) are located between the two non-winding magnetic cylinders (150). The thin film magnetic core (110) includes at least one magnetic thin film (101). In each magnetic thin film (101), at least one type-1 gap (170) is provided in an area located at the first end portion (120) and the second end portion (130) and located between two adjacent winding magnetic cylinders (140). A length direction of the type-1 gap (170) is parallel to a direction of hard magnetization of the magnetic thin film (101). The magnetic thin films (101) are laminated and overlap each other. A sum of widths of all type-1 gaps (170) in each magnetic thin film (101) is the same.
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公开(公告)号：EP3065276A1
公开(公告)日：2016-09-07
申请号：EP15812933.8
申请日：2015-08-10
发明人： YANG, Dan , WANG, Qinghai , ZHU, Yongfa
IPC分类号： H02M1/15
摘要： The present invention provides an active filter and a communications system. The active filter includes a main circuit and a control circuit. The control circuit is configured to: detect a first current output by a negative electrode of an input end of a conversion circuit to acquire a harmonic component in the first current, and generate a control signal according to the harmonic component. The main circuit is configured to generate, under control of the control signal, a second current having a phase opposite to a phase of the harmonic component, so that a source current formed after the first current and the second current pass through a power source is a direct current. By using the active filter provided by the present invention, low-frequency noise may be suppressed effectively.
摘要翻译： 本发明提供一种有源滤波器和通信系统。 有源滤波器包括主电路和控制电路。 控制电路被配置为：检测由转换电路的输入端的负电极输出的第一电流，以获得第一电流中的谐波分量，并根据谐波分量产生控制信号。 主电路被配置为在控制信号的控制下产生具有与谐波分量的相位相反的相位的第二电流，使得在第一电流和第二电流之后形成的源极电流通过电源是 直流电。 通过使用本发明提供的有源滤波器，可以有效地抑制低频噪声。
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公开(公告)号：EP4439925A1
公开(公告)日：2024-10-02
申请号：EP22914221.1
申请日：2022-12-13
发明人： FENG, Shaojie , QIAN, Zhongnan , ZHU, Yongfa , CHEN, Xiaowei , SUN, Quanhao , DUAN, Zhiqiang , YANG, Jiangtao
IPC分类号： H02J50/05
摘要： This application provides a wireless charging transmitting apparatus, a wireless charging receiving apparatus, and a system thereof. The wireless charging transmitting apparatus includes an inverter circuit, a first transmitting plate, and a second transmitting plate. The wireless charging receiving apparatus includes a first receiving plate, a second receiving plate, and a rectifier circuit. An input end of the inverter circuit is connected to a direct current power supply, a first output end of the inverter circuit is connected to the first transmitting plate, and a second output end of the inverter circuit is connected to the second transmitting plate. A first contact is disposed on the first transmitting plate, and a second contact is disposed on the first receiving plate. When the first contact is in contact with the second contact, the first transmitting plate establishes an electrical connection with the first receiving plate. The second transmitting plate performs electric field coupling with the second receiving plate. The first receiving plate is connected to a first input end of the rectifier circuit, the second receiving plate is connected to a second input end of the rectifier circuit, and an output end of the rectifier circuit is connected to a load. In this application, a deviation capability of wireless charging is improved.
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公开(公告)号：EP4243267A1
公开(公告)日：2023-09-13
申请号：EP21896345.2
申请日：2021-07-19
发明人： ZHU, Yongfa , ZENG, Zhiqiang , CAI, Jinsen , YANG, Heqian , CHEN, Xiaowei , DING, Tao
IPC分类号： H02M3/158
摘要： This application provides a conversion circuit, a switching power supply, and an electronic device. The conversion circuit mainly includes a first branch circuit and a second branch circuit. Input sides of the first branch circuit and the second branch circuit are connected in series, and output sides of the first branch circuit and the second branch circuit are connected in parallel; or input sides of the first branch circuit and the second branch circuit are connected in parallel, and output sides of the first branch circuit and the second branch circuit are connected in series. This implementation helps improve efficiency of the conversion circuit. When an inductor is disposed in the conversion circuit, a size of the inductor is further reduced, to improve integration.
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16.发明公开
公开(公告)号：EP3820022A1
公开(公告)日：2021-05-12
申请号：EP20845552.7
申请日：2020-03-26
发明人： HE, Mou , CHEN, Wei , ZHU, Yongfa , FENG, Shaojie
IPC分类号： H02J50/60
摘要： This application provides a wireless charging foreign object detection apparatus, applied to the field of wireless charging technologies. The detection apparatus includes: an excitation coil configured to provide a time-varying magnetic field, detection coils configured to detect a foreign object, and a processor configured to determine whether a foreign object exists. The detection coils may include two detection coils, or may include at least three detection coils. The at least three detection coils may be further configured to eliminate a detection blind spot.
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17.发明公开
公开(公告)号：EP3809430A1
公开(公告)日：2021-04-21
申请号：EP19917242.0
申请日：2019-10-10
发明人： ZHU, Yongfa , CHEN, Xiaowei , DING, Tao , ZENG, Zhiqiang , YANG, Chang , HE, Zhaodong
IPC分类号： H01F27/28
摘要： This application discloses a coil module, a wireless charging transmitting apparatus, a wireless charging receiving apparatus, a wireless charging system, and a mobile terminal. The coil module includes a first planar coil winding, and the first planar coil winding includes a plurality of turns of coils; at least one turn of first coil in the plurality of turns of coils of the first planar coil winding includes at least one first cutting opening, and the first cutting opening divides the first coil into a first outer side part and a first inner side part along an extension direction of the coil; the first outer side part has a first connection end, and the first inner side part has a second connection end; and a first target side part includes a first cutting groove, the first target side part is at least one of the first outer side part and the first inner side part, an extension direction of the first cutting groove is the same as an extension direction of the first target side part, and a width of a single first cutting groove is less than or equal to a width of a single first cutting opening. An eddy current path on the first target side part is cut off to reduce an area through which a magnetic flux passes, so as to reduce a magnetic flux. In this way, an eddy current loss and a circulating current loss are reduced, and charging efficiency is increased.
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公开(公告)号：EP3780321A1
公开(公告)日：2021-02-17
申请号：EP19843407.8
申请日：2019-04-22
发明人： ZHU, Yongfa , DING, Tao , YANG, Heqian , PEI, Changsheng , ZHANG, Zhi
摘要： This application provides a wireless charging device, including: a charging pad and a first controller. The charging pad includes a plurality of charging units, and the first controller is configured to control how the plurality of charging units charge the to-be-charged device. Specifically, the plurality of charging units include a first charging unit and a second charging unit. When a first electromagnetic coupling strength between the first charging unit and the to-be-charged device is greater than or equal to a first threshold, the first controller is configured to control the first charging unit to separately charge the to-be-charged device. When both the second electromagnetic coupling strength between the second charging unit and the to-be-charged device and the first electromagnetic coupling strength are less than a first threshold, and are greater than or equal to a second threshold, the first controller is configured to control the first charging unit and the second charging unit to jointly charge the target to-be-charged device.
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19.发明公开
公开(公告)号：EP3761329A1
公开(公告)日：2021-01-06
申请号：EP19774272.9
申请日：2019-01-07
发明人： PEI, Changsheng , ZHU, Yongfa , ZENG, Zhiqiang , CHEN, Xiaowei
IPC分类号： H01F38/14
摘要： This application belongs to the field of wireless charging technologies, and discloses a coil module. The module includes: an insulation layer, a first planar coil winding, and a second planar coil winding, where at least one turn of coil of the first planar coil winding includes a first portion, a second portion, and a first connection part, and at least one turn of coil of the second planar coil winding includes a third portion, a fourth portion, and a second connection part. In this application, the first connector is configured to connect an outer side part of the first portion and an inner side part of the second portion, the second connector is configured to connect an inner side part of the third portion and an outer side part of the fourth portion, and there is an overlap between a projection of the first connector on a plane of the insulation layer and a projection of the second connector on the plane of the insulation layer. Correspondingly, this application further discloses a wireless charging transmitting apparatus, a receiving apparatus, and a system in which the coil module is used, and a terminal in which the wireless charging system is used.
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20.发明授权GOLDEN FINGER AND PLATE EDGE INTERCONNECTION DEVICE 有权GOLDFINGER- UND BLECHRANDVERBINDUNGSVORRICHTUNG
公开(公告)号：EP2658354B1
公开(公告)日：2015-09-16
申请号：EP12861057.3
申请日：2012-10-26
发明人： YAO, Kai , ZHU, Yongfa , HUANG, Yingpei
CPC分类号： H05K1/117 , H05K1/0265 , H05K1/0298 , H05K3/4046 , H05K2201/0919 , H05K2201/09481 , H05K2201/0979 , H05K2201/10416
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