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公开(公告)号：US20230085737A1
公开(公告)日：2023-03-23
申请号：US17933123
申请日：2022-09-19
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Haijun YANG , Yuxi WANG , Kaijun ZHU , Zengyi LU
Abstract: Disclosed is a power conversion circuit, comprising a three-phase inductor and a switching conversion unit, and the three-phase inductor is integrated into a magnetic assembly, the magnetic assembly comprising: two magnetic yokes relatively parallel to each other; a first, a second and a third winding column spaced apart sequentially and located between the two magnetic yokes, and three windings wound around the first, the second and the third winding column in one-to-one correspondence for forming an phase inductor of the three-phase inductor respectively, and phase differences between power frequency currents flowing in any two of the windings are 120°; wherein when a reference current is applied to each of the windings, magnetic fluxes on the first and the third winding column have a first reference direction, and a magnetic flux on the second winding column has a second reference direction opposite to the first reference direction.
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公开(公告)号：US20210083590A1
公开(公告)日：2021-03-18
申请号：US17015015
申请日：2020-09-08
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Zengyi LU , Haijun YANG , Shiwei LIU , Jinfa ZHANG
Abstract: An isolated resonant converter is provided, including a first side circuit, a second side circuit, and a resonant tank circuit. The resonant tank circuit includes a first resonant capacitor, a second resonant capacitor, and an integrated magnetic element. The integrated magnetic element includes a first side winding, a second side winding and a spaced groove provided between the first side winding and the second side winding. And the spaced groove stores leakage inductance energy, thereby forming at least part of resonant inductance required. Therefore, a number and volume of magnetic elements in the resonant converter are reduced.
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公开(公告)号：US20190312517A1
公开(公告)日：2019-10-10
申请号：US16450089
申请日：2019-06-24
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haijun YANG , Zengyi LU , Weilong XIA , Yajiang YAN
Abstract: A multiple parallel-connected resonant converter, an inductor-integrated magnetic element and a transformer-integrated magnetic element are provided. The multiple parallel-connected resonant converter includes a first and a second converters. The first converter having a first input and output end includes a first inductor, a first transformer and a first capacitor connected in series. The second converter having a second input and output end includes a second inductor, a second transformer and a second capacitor connected in series. The second output end is connected with the first output end in parallel. The first and second inductor are integrated in a first magnetic element, the first magnetic element includes a first and second side column, and a first and second central column. The first inductor includes a first coil positioned around the first central column and the second inductor includes a second coil positioned around the second central column.
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公开(公告)号：US20190115149A1
公开(公告)日：2019-04-18
申请号：US16006805
申请日：2018-06-12
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Zengyi LU , Haijun YANG , Shiwei LIU
Abstract: A multi-coil inductor includes a plurality of stacked inductor units. Each of the inductor units comprises: a magnetic core in which a magnetic path is formed; and a plurality of coils which are wound around the magnetic core to form at least one winding pair. Wherein a part of the magnetic path between the adjacent inductor units is shared. In the present invention, the leakage inductance is controlled and the maybe magnetic saturation of magnetic core avoided by adjusting series and parallel connections among the coils.
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公开(公告)号：US20190019610A1
公开(公告)日：2019-01-17
申请号：US16012869
申请日：2018-06-20
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Zengyi LU , Haijun YANG , Shaohua ZHU
Abstract: A magnetic element includes a magnetic core and a winding. The magnetic core includes a first and second magnetic cover disposed oppositely, and at least one first magnetic column, at least one second magnetic column and at least one common magnetic column disposed between the first and second magnetic covers. The winding includes at least one first winding wound around at least one first magnetic column, and at least one second winding wound around at least one said second magnetic column. A first differential mode inductor is formed with the first winding, the first magnetic column, the first magnetic cover, the common magnetic column and the second magnetic cover. A power inductor or a power transformer is formed with the second winding, the second magnetic column, the first magnetic cover, the common magnetic column and the second magnetic cover.
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Patent Agency Ranking
公开(公告)号：US20180374802A1
公开(公告)日：2018-12-27
申请号：US15909954
申请日：2018-03-01
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Xiangxing ZHENG , Wenhua LI , Quansong LUO , Yuanyuan DAN , Haijun YANG , Shaohua ZHU
CPC classification number: H01L23/645 , H01F27/24 , H01F27/28 , H01F27/2804 , H01F27/306 , H01F37/00 , H01L28/10 , H05K1/0243 , H05K1/0262 , H05K1/0263 , H05K1/165 , H05K2201/086 , H05K2201/09036 , H05K2201/1028
Abstract: The present disclosure discloses an inductor structure mounted on a PCB board and a voltage regulator module having the same. The inductor structure includes inductor cores and inductor windings. The PCB board is provided with at least one hollow part, and the hollow part comprises a plurality of through holes spaced apart. The legs of the inductor cores are correspondingly inserted into the through holes at the corresponding positions of the hollow part, wherein any two adjacent through holes of the plurality of through holes have a spacer therebetween for use as the inductor winding of the inductor structure, and the thickness of the spacer is less than the thickness of the PCB board.
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公开(公告)号：US20170214330A1
公开(公告)日：2017-07-27
申请号：US15414702
申请日：2017-01-25
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haijun YANG , Zengyi LU , Weilong XIA , Yajiang YAN
CPC classification number: H02M3/33523 , H01F27/24 , H01F27/255 , H01F27/2823 , H01F37/00 , H02M3/285 , H02M3/337 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491 , Y02P80/112
Abstract: A multiple parallel-connected resonant converter, an inductor-integrated magnetic element and a transformer-integrated magnetic element are provided. The multiple parallel-connected resonant converter includes a first and a second converters. The first converter having a first input and output end includes a first inductor, a first transformer and a first capacitor connected in series. The second converter having a second input and output end includes a second inductor, a second transformer and a second capacitor connected in series. The second output end is connected with the first output end in parallel. The first and second inductor are integrated in a first magnetic element, the first magnetic element includes a first and second side column, and a first and second central column. The first inductor includes a first coil positioned around the first central column and the second inductor includes a second coil positioned around the second central column.
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公开(公告)号：US20210118610A1
公开(公告)日：2021-04-22
申请号：US17068843
申请日：2020-10-13
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Xiaoxia SUN , Chunmei WANG , Jun SUN , Haijun YANG , Zengyi LU
Abstract: An integrated magnetic element includes an accommodating part; a current sensor disposed on the accommodating part; and a transformer disposed on the accommodating part. The transformer includes a magnetic core, a first winding including a plurality of wires, and a second winding, wherein some of the plurality of wires passes through the current sensor to shunt and detect current flowing through the first winding, and current values of the wires are detected by the current sensor to obtain a total current value of the first winding of the transformer according to a shunt ratio by the winding construction of the preset transformer.
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公开(公告)号：US20200373059A1
公开(公告)日：2020-11-26
申请号：US16992166
申请日：2020-08-13
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haijun YANG , Zengyi LU , Tianding HONG , Jinfa ZHANG
Abstract: A magnetic dev ice includes a core structure, at least one inductor winding and at least two transformer windings. The core structure includes at least one inductor column and at least two transformer columns. The at least one inductor winding respectively winds around the at least one inductor column. The at least two transformer windings, wind around the at least two transformer columns respectively, and the transformer winding includes primary winding and secondary winding. Wherein the magnetic flax directions on adjacent transformer columns are opposite to each other when providing a current in the corresponding primary windings simultaneously.
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公开(公告)号：US20190363058A1
公开(公告)日：2019-11-28
申请号：US16532503
申请日：2019-08-06
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Xiangxing ZHENG , Wenhua LI , Quansong LUO , Yuanyuan DAN , Haijun YANG , Shaohua ZHU
Abstract: The present disclosure discloses an inductor structure mounted on a PCB board and a voltage regulator module having the same. The inductor structure includes an inductor core and an inductor winding. The PCB board is provided with at least one hollow part, and the inductor structure further comprises a plurality of copper strips used as the inductor windings of the inductor structure. The copper strips are spaced apart in the hollow part so as to form a plurality of through holes, and the leg of the inductor core is correspondingly inserted into the through hole at the corresponding position of the hollow part.
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