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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：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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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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4.发明公开MAGNETIC INTEGRATED DEVICE AND POWER CONVERSION CIRCUIT 审中-公开MAGNETISCHE INTEGRIERTE VORRICHTUNG UND STROMUMWANDLUNGSSCHALTUNG
公开(公告)号：EP3054593A1
公开(公告)日：2016-08-10
申请号：EP14860192.5
申请日：2014-04-04
发明人： YANG, Heqian , PEI, Changsheng , LIANG, Yongtao
IPC分类号： H03H7/46
CPC分类号： H02M3/33546 , H01F27/24 , H01F27/2823 , H01F30/12 , H02M3/285 , H02M3/335
摘要： Embodiments of the present invention disclose a magnetic integrated device and a power conversion circuit. The magnetic integrated device includes: a first magnetic core base and a second magnetic core base that are parallel and a first magnetic core column, a second magnetic core column, and a third magnetic core column that are located between the first magnetic core base and the second magnetic core base; and a first winding, a second winding, and a third winding are wound on the first magnetic core column, the second magnetic core column, and the third magnetic core column respectively in a same manner to form a closed magnetic flux loop, where the first winding, the second winding, and the third winding are separately used for connecting to a branch of a three-phase parallel circuit, and in all branches of the three-phase parallel circuit, values of currents are the same, and a difference between each two current phases is 120 degrees. In the present invention, branches of a three-phase parallel circuit interact, in a magnetic integrated device, with one another by using a coupling relationship of magnetic flux, and a change in magnetic flux in one branch results in a simultaneous adjustment in the other two branches, thereby implementing automatic current equalization, and achieving an effect of automatically balancing currents in all branches.
摘要翻译： 本发明的实施例公开了一种磁性集成装置和电力转换电路。 磁性集成器件包括：平行的第一磁芯基座和第二磁芯基座，以及位于第一磁芯基座和第二磁芯基座之间的第一磁芯柱，第二磁芯柱和第三磁芯柱 第二磁芯基座; 并且第一绕组，第二绕组和第三绕组分别以相同的方式缠绕在第一磁芯柱，第二磁芯柱和第三磁芯柱上，以形成闭合磁通量环，其中第一 绕组，第二绕组和第三绕组分别用于连接到三相并联电路的分支，并且在三相并联电路的所有分支中，电流值相同，并且每个 两个电流相位为120度。 在本发明中，三相并联电路的分支通过使用磁通的耦合关系在磁性集成装置中相互作用，并且一个分支中的磁通量的变化导致另一个分支中的同时调整 两个分支，从而实现自动电流均衡，并实现在所有分支中自动平衡电流的效果。
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公开(公告)号：EP3761327A1
公开(公告)日：2021-01-06
申请号：EP20170717.1
申请日：2016-11-23
发明人： YANG, Heqian , ZHU, Yongfa , LUO, Xiaolong
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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6.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：EP3346476B1
公开(公告)日：2020-04-22
申请号：EP16899255.0
申请日：2016-11-23
发明人： YANG, Heqian , ZHU, Yongfa , LUO, Xiaolong
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