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公开(公告)号：EP3255770B1
公开(公告)日：2020-01-01
申请号：EP15890604.0
申请日：2015-11-02
发明人： PEI, Changsheng , GAO, Yongbing , ZHANG, Heling
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公开(公告)号：EP2871761A1
公开(公告)日：2015-05-13
申请号：EP14809745.4
申请日：2014-03-11
发明人： ZHENG, Feng , PEI, Changsheng , ZHU, Yongfa
IPC分类号： H02M1/44
CPC分类号： H02M1/44 , H01F27/02 , H02M1/126 , H02M3/155 , H02M2001/0064 , H02M2001/123
摘要： The present invention provides a voltage conversion device and a method for adjusting common mode noise impedance, which relates to the circuit field, and enables a common mode impedance value of a noise source and an impedance value of an EMI filter to enter a mismatch state, so as to reduce a restriction on design of the EMI filter, so that a size of the EMI filter is smaller and utilization efficiency of the EMI filter is higher. The method is: adjusting an impedance value of a common mode noise source by adjusting a balanced impedance value in a balanced winding on a voltage conversion device, so as to enable the impedance value of the common mode noise source and an impedance value of an EMI filter to enter a mismatch state. Embodiments of the present invention are used to enable an impedance value of a common mode noise source and an impedance value of an EMI filter to enter a mismatch state.
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3.发明公开
公开(公告)号：EP3806117A1
公开(公告)日：2021-04-14
申请号：EP19847844.8
申请日：2019-05-30
发明人： PEI, Changsheng , ZHU, Yongfa , ZENG, Zhiqiang
摘要： This application discloses a coil module, a wireless charging transmitting apparatus, a wireless charging receiving apparatus, a wireless charging system, and a terminal. The module includes a first planar coil winding and a second planar coil winding. A first coil of the first planar coil winding includes a first outer side part and a first inner side part. An end part of the first coil of the first planar coil winding includes an end part of the first outer side part and an end part of the first inner side part. A first coil of the second planar coil winding includes a second outer side part and a second inner side part. An end part of the first coil of the second planar coil winding includes an end part of the second outer side part and an end part of the second inner side part. The end part of the first outer side part is connected to the end part of the second inner side part. The end part of the second outer side part is connected to the end part of the first inner side part. This application can effectively reduce a circulating current loss in the first planar coil winding and the second planar coil winding, and improve wireless charging efficiency of the coil module.
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4.发明公开
公开(公告)号：EP3713041A1
公开(公告)日：2020-09-23
申请号：EP18879518.1
申请日：2018-11-20
发明人： PEI, Changsheng , ZHU, Yongfa , YANG, Heqian , CAI, Jinsen
摘要： This application provides a coil. The coil includes an output terminal, an input terminal, and a wire-winding part that is connected between the output terminal and the input terminal. A slot is disposed on at least a part of the wire-winding part, and a depth of the slot in any direction of a cross section of the wire-winding part is less than or equal to a distance between two points that are the farthest away from each other on the cross section of the wire-winding part. The wire-winding part is a metal conductor that is made through spiral winding. The input terminal and the output terminal are configured to connect the wire-winding part to an external circuit.
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公开(公告)号：EP3706285A1
公开(公告)日：2020-09-09
申请号：EP18881348.9
申请日：2018-07-18
发明人： PEI, Changsheng , ZENG, Zhiqiang , ZHU, Yongfa
摘要： This application discloses a wireless charging method, a device, and a wireless charging system. The wireless charging system may include a transmitter and a receiver; the transmitter includes a transmitter coil and a first series matching capacitor, the transmitter coil is connected to the first series matching capacitor in series to form a first oscillation circuit, and the first oscillation circuit is configured to transfer power to the receiver; and the receiver includes a receiver coil and a second series matching capacitor, the receiver coil is connected to the second series matching capacitor in series to form a second oscillation circuit, and the second oscillation circuit is configured to receive the power transferred by the first oscillation circuit. Implementation of embodiments of this application can reduce an electrical energy loss in the receiver, and improve charging efficiency of the receiver.
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公开(公告)号：EP3255770A1
公开(公告)日：2017-12-13
申请号：EP15890604.0
申请日：2015-11-02
发明人： PEI, Changsheng , GAO, Yongbing , ZHANG, Heling
IPC分类号： H02M1/44
摘要： Embodiments of the present invention provide a filter apparatus and a power supply system, where the filter apparatus is connected between an external power source and a device, and includes a feedback active common-mode filter and a feed-forward active common-mode filter, the feedback active common-mode filter includes a common-mode noise detection component and a first filter circuit, and the feed-forward active common-mode filter includes the common-mode noise detection component and a second filter circuit, where the first filter circuit is connected between the common-mode noise detection component and the device, and performs feedback filtering on a first common-mode noise signal, to obtain a second common-mode noise signal; the common-mode noise detection component is connected between the first filter circuit and the second filter circuit, detects the second common-mode noise signal, and provides the second filter circuit with the second common-mode noise signal; and the second filter circuit is connected between the external power source and the common-mode noise detection component, and performs feed-forward filtering on the second common-mode noise signal. In the embodiments of the present invention, filtering performance for common-mode noise can be effectively improved to some degree.
摘要翻译： 本发明实施例提供了一种滤波装置和一种供电系统，所述滤波装置连接在外部电源与设备之间，包括反馈有源共模滤波器和前馈有源共模滤波器， 反馈有源共模滤波器包括共模噪声检测组件和第一滤波电路，前馈有源共模滤波器包括共模噪声检测组件和第二滤波电路，其中第一滤波电路 连接在所述共模噪声检测部件与所述装置之间，对第一共模噪声信号进行反馈滤波，得到第二共模噪声信号; 共模噪声检测部件连接在第一滤波电路和第二滤波电路之间，检测第二共模噪声信号并向第二滤波电路提供第二共模噪声信号; 并且第二滤波器电路连接在外部电源和共模噪声检测部件之间，并且对第二共模噪声信号执行前馈滤波。 在本发明实施例中，可以在一定程度上有效提高共模噪声的滤波性能。
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公开(公告)号：EP4210075A1
公开(公告)日：2023-07-12
申请号：EP21871178.6
申请日：2021-08-24
发明人： PEI, Changsheng , ZHANG, Anle , CHEN, Yufei
IPC分类号： H01F27/28
摘要： This application relates to the field of wireless charging, and provides a coil assembly, an electronic device, and a wireless charger. The coil assembly includes a first coil winding, a second coil winding, and a circuit board. The first coil winding includes a plurality of first wire groups, and has a first lead-out end connected to an external circuit. The second coil winding includes a plurality of second wire groups, and has a second lead-out end connected to the external circuit. The second coil winding is stacked with the first coil winding. A plurality of first terminals and a plurality of second terminals are disposed on the circuit board. Each first terminal is connected to each second terminal by using a cable. In a plurality of cables used to connect the plurality of first terminals and the plurality of second terminals, at least two cables are changed to different line layers in a cross region through first vias to be disposed in a crossed manner. A first connection end of each first wire group is connected to a second connection end of each second wire group by the first terminal and the second terminal. The coil windings of the coil assembly in this application generate low heat, and transmission efficiency of electric energy is high.
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公开(公告)号：EP4148954A1
公开(公告)日：2023-03-15
申请号：EP21818054.5
申请日：2021-03-03
发明人： HONG, Liang , PEI, Changsheng
摘要： An electronic device and a control method for the electronic device are provided, and relate to the field of wireless charging technologies, to improve compatibility of a power receiving terminal device in wireless charging with a power transmitting terminal device by improving ASK communication quality. The electronic device includes a device circuit (50), a voltage conversion circuit (203), a rectifier circuit (202), a resonant circuit (201), and a modulation circuit (204). The resonant circuit (201) includes a resonant inductor (L2) and a resonant capacitor control circuit (ci1) connected in series to the resonant inductor (L2). A first end of the resonant inductor (L2) is coupled to the rectifier circuit (202), a second end of the resonant inductor (L2) is coupled to a first end of the resonant capacitor control circuit (ci1), and a second end of the resonant capacitor control circuit (ci1) is coupled to the rectifier circuit (202). The resonant capacitor control circuit (ci1) is configured to adjust a capacitance value of a resonant capacitor connected to the resonant circuit (201).
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公开(公告)号：EP3780337A1
公开(公告)日：2021-02-17
申请号：EP19827113.2
申请日：2019-04-08
发明人： CHEN, Hongliang , CHEN, Wei , PEI, Changsheng , ZHU, Yongfa
IPC分类号： H02J50/40
摘要： Embodiments of this application disclose a wireless charging apparatus and method, and relates to the field of wireless power transmission system technologies. The apparatus includes a voltage conversion circuit, an excitation coil, n first resonance coils, and a controller, where n is greater than or equal to 3. The voltage conversion circuit is connected to the excitation coil and is configured to convert a power grid voltage into a high-frequency alternating current voltage; the excitation coil is configured to generate a magnetic field based on the high-frequency alternating current voltage; the n first resonance coils are arranged in different directions and are configured to conduct the magnetic field; and the controller is configured to: monitor power statuses of the first resonance coils, and enable or disable the first resonance coils based on the power statuses.
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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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