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公开(公告)号：US20170331378A1
公开(公告)日：2017-11-16
申请号：US15462907
申请日：2017-03-19
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Hai-Bin SONG , Jin-Fa ZHANG , Dao-Fei XU , Jian ZHOU , Qi FU , Xiao-Jun CHEN , Jian-Wei SONG
Abstract: A power adaptor includes a main electric unit, a transformer unit and a bus capacitor unit. The main electric unit is disposed on a first surface. The transformer unit is configured on the main electric unit and disposed on a second surface. The first surface is perpendicular to the second surface. The main electric unit and the transformer unit form a containing space. The bus capacitor unit includes at least one bus capacitor. The bus capacitor unit is disposed in the containing space.
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公开(公告)号：US20240333170A1
公开(公告)日：2024-10-03
申请号：US18611722
申请日：2024-03-21
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Qi FU , Daofei XU , Shengnan XIE , Jinfa ZHANG
CPC classification number: H02M7/05 , H02M1/0006 , H02M1/4208 , H02M1/44 , H02M3/33571 , H02M3/33576
Abstract: The invention discloses a power conversion circuit and a power supply device. The power conversion circuit is applied to a power supply device, comprising: an AC/DC conversion circuit, wherein a DC side of the AC/DC conversion circuit has a first reference potential point; a first common-mode inductor; a DC/DC conversion circuit including a primary circuit having a second reference potential point, a secondary circuit and a transformer; wherein a first terminal of the first common-mode inductor is connected to the DC side of the AC/DC conversion circuit, and a second terminal of the first common-mode inductor is connected to the primary circuit of the DC/DC conversion circuit; the first reference potential point or the second reference potential point is connected to an electric field shield.
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公开(公告)号：US20180159437A1
公开(公告)日：2018-06-07
申请号：US15662301
申请日：2017-07-28
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Haibin SONG , Daofei XU , Jinfa ZHANG , Jian ZHOU , Qi FU , Leyang YANG
CPC classification number: H02M3/33592 , H02M1/083 , H02M2001/0009 , H02M2001/0058
Abstract: The present invention discloses a control method and a control apparatus for a Flyback circuit. The Flyback circuit includes a primary switch, a secondary rectifier unit, a transformer and an output capacitor. The secondary rectifier unit includes a first terminal and a second terminal, which are electrically connected to the transformer and the output capacitor, respectively. In the control method for a Flyback circuit, after the secondary rectifier unit is controlled to be turned on once or twice according to the input voltage and/or output power of the Flyback, the primary switch is turned on to achieve the zero-voltage-switching. According to the invention, the zero-voltage-switching (ZVS) of the primary switch can be achieved under the entire input voltage range and the entire load range without adding additional power devices.
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Patent Agency Ranking
公开(公告)号：US20210367508A1
公开(公告)日：2021-11-25
申请号：US17146471
申请日：2021-01-11
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Haibin SONG , Jian ZHOU , Qi FU , Daofei XU , Jinfa ZHANG
Abstract: The present invention discloses a power factor correction circuit. The power factor correction circuit includes: a first bridge arm having a first switch and a second switch; a second bridge arm having a third switch and a fourth switch; a first inductor and a second inductor; a first capacitor and/or a second capacitor connected with a common point between the second inductor and the first inductor; and a third capacitor and/or a fourth capacitor, the third capacitor connected in parallel to the third switch based on an arrangement of the second capacitor and having a capacitance value same as that of the second capacitor, the fourth capacitor connected in parallel to the fourth switch based on an arrangement of the first capacitor and having a capacitance value same as that of the first capacitor.
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公开(公告)号：US20210350973A1
公开(公告)日：2021-11-11
申请号：US17226458
申请日：2021-04-09
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Qi FU , Haibin SONG , Daofei XU , Zengyi LU , Jinfa ZHANG
Abstract: Present disclosure provides a winding assembly and a magnetic element. The winding assembly includes a circuit board with a central hole and a first winding wound around the central hole in the circuit board; the first winding includes N turns of coil on at least two wiring layers; a second end of at least one turn of coil on a first wiring layers is connected to a first end of next turn of coil at corresponding position on a second wiring layer of the circuit board. The magnetic element includes a magnetic core and a winding assembly sleeved on a magnetic leg.
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公开(公告)号：US20210350975A1
公开(公告)日：2021-11-11
申请号：US17226521
申请日：2021-04-09
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Qi FU , Haibin SONG , Daofei XU , Zengyi LU , Jinfa ZHANG
IPC: H01F27/28 , H01F27/06 , H01F27/24 , H01F41/061
Abstract: The present invention provides a winding assembly and a magnetic assembly. The winding assembly comprises a first coil and a circuit board, and the first coil is embedded inside the circuit board; wherein the first coil comprises a conductive wire with at least one turn, and a height of the conductive wire in a direction perpendicular to the circuit board is not less than a width of the conductive wire in a direction parallel to the circuit board. The magnetic assembly comprises a first winding assembly and a magnetic core; wherein the first winding assembly comprises a first coil and a first circuit board, and the first coil comprises a conductive wire with at least one turn, the first coil is embedded inside the first circuit board, the first winding assembly is assembled with the magnetic core.
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公开(公告)号：US20200251272A1
公开(公告)日：2020-08-06
申请号：US16740554
申请日：2020-01-13
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haibin SONG , Qi FU , Daofei XU , Jinfa ZHANG
Abstract: A magnetic device comprises two base portions and magnetic pillars, wherein each of the two base portions has a first surface and the two first surfaces are faced to each other, and the magnetic pillars are disposed between the two first surfaces along a first direction, wherein, in the first direction, two of the magnetic pillars located at the outermost side of the base portion are a first corner pillar and a second corner pillar respectively, n of the magnetic pillars having the same cross-sectional area and located at the center position of the base portion are n center pillars, and cross-sectional area of the magnetic pillars are gradually increased from the first corner pillar to the center pillar closest to the first corner pillar, and from the second corner pillar to the center pillar closest to the second corner pillar.
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公开(公告)号：US20210350974A1
公开(公告)日：2021-11-11
申请号：US17232531
申请日：2021-04-16
Applicant: Delta Electronics (Shanghai) CO., LTD
Inventor： Haibin SONG , Qi FU , Daofei XU , Jinfa ZHANG
Abstract: Present disclosure provides a winding assembly and a magnetic element. The winding assembly comprises a substrate with a central hole and a first winding disposed in the substrate, the first winding comprising two layers of coil wound around a central hole in the substrate; wherein, a second end of a first layer of coil away from the central hole is connected to a first end of a second layer of coil away from the central hole, and a first end of the first layer of coil close to the central hole and a second end of the second layer of coil close to the central hole serve as a starting-end and a finishing-end of the first winding, respectively. The magnetic element comprises a winding assembly and a magnetic core, and the winding assembly is sleeved on a magnetic leg of the magnetic core.
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