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公开(公告)号：US20240355520A1
公开(公告)日：2024-10-24
申请号：US18761753
申请日：2024-07-02
Applicant: Solaredge Technologies Ltd.
Inventor： Michael Manelis , Gil Litmanovitch , David Braginsky
Abstract: An apparatus comprising a signal transformer coupled to a power line and a signal transmission, reception, or detection circuit. A sensor is configured to be responsive to the power line current or magnetic flux generated in a ferrite core of the signal transformer. When the sensor indicates that the flux generated by the power line current mat cause an attenuation of the signal strength, a second circuit generates a current through a flux cancelling winding that cancels at least some of the flux generated by the power line current.
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公开(公告)号：US20240321511A1
公开(公告)日：2024-09-26
申请号：US18607519
申请日：2024-03-17
Applicant: SHANGHAI METAPWR ELECTRONICS CO., LTD
Inventor： Jianhong ZENG
Abstract: A magnetic assembly is provided. The magnetic assembly comprises a magnetic core and two winding combinations. The magnetic core comprises a middle column, two side columns and two magnetic substrates. The middle column and the two side columns are arranged between the two magnetic substrates, and the middle column is arranged between the two side columns. The two winding combinations are respectively wound on one side column, each winding combination comprises two windings which are connected with each other. The voltage at the two ends of one winding wound on one side column is 90 degrees out of phase with the voltage of the two ends of one winding wound on the other side column.
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公开(公告)号：US20240312682A1
公开(公告)日：2024-09-19
申请号：US18607523
申请日：2024-03-17
Applicant: POWER SUPPORT COMPANY LIMITED
Inventor： KATSUSHI IGARASHI
IPC: H01F1/34 , C08K3/22 , C08K11/00 , H01F27/255 , H01F27/28
CPC classification number: H01F1/344 , C08K3/22 , C08K11/00 , H01F27/255 , H01F27/28 , C08K2003/2265 , C08K2201/01
Abstract: [Problem] To provide a ferrite core having no rigidity.
[Solution] A band-shaped ferrite core includes: a first end portion 10 having a through hole; a second end portion 20 that passes through the through hole a plurality of times while a main body of the ferrite core is wound around a winding target; and a body portion 30 having a holding portion 40 that holds a state in which the main body of the ferrite core is wound around the winding target. The ferrite core contains: a ferrite core powder containing ferrite and a pulverized product of ore containing at least a silicon component as one of main components at a ratio of 85 wt %:15 wt % to 99 wt %:1 wt %; and a flexible resin serving as a binder of the ferrite core powder at a ratio of 40 wt %:60 wt % to 55 wt %:5 wt %.-
公开(公告)号：US12087489B2
公开(公告)日：2024-09-10
申请号：US16923893
申请日：2020-07-08
Applicant: North Carolina State University
Inventor： Richard Byron Beddingfield , Subhashish Bhattacharya , Tsz Sing Wong , Paul Ohodnicki
Abstract: Various examples are provided related to transformer designs that offer very high isolation while maintaining high coupling between the windings. In one example, an isolation transformer includes a first excitation coil wound around a first core and a second excitation coil wound about a second core. The second core is electrically separated from the first core by a high resistivity magnetic material or a non-conductive material. The first and second cores can include corresponding core segments arranged in a trident geometry or a quindent geometry. The core segments can align when the first excitation coil is inserted into a void of the second excitation coil. The isolation transformer designs are mechanically separable which can result in safe, energized, plug operations.
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公开(公告)号：US12087485B2
公开(公告)日：2024-09-10
申请号：US18478449
申请日：2023-09-29
Applicant: Hubbell Incorporated
Inventor： Kenneth Edward Pagenkopf
CPC classification number: H01F21/04 , H01F27/24 , H01F27/28 , H03H7/0115 , H03H2210/026
Abstract: An adjustable inductor including a toroidal core defining a plurality of gaps, a compressible gap material positioned in the gaps, at least one winding wound on the core, a force-applying structure, and a film substantially covering the adjustable inductor. The force-applying structure is operable to apply a force to the core to adjust the gaps and thereby an inductance of the adjustable inductor. The film is configured to prevent movement of force-applying structure when above a predetermined temperature threshold, and allow movement of the force-applying structure when below the predetermined threshold.
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Patent Agency Ranking
公开(公告)号：US12074579B2
公开(公告)日：2024-08-27
申请号：US17778015
申请日：2021-03-24
Applicant: JIAXING GLEAD ELECTRONICS CO., LTD
Inventor： Changwei Luo , Kuan-Yu Lu , Jiayuan Hua , Feng Pan , Nan Liu , Lili Wang , Xing Xu
CPC classification number: H03H7/0115 , H01F27/28 , H01F27/40 , H01G4/40 , H03H7/1775 , H03H2001/0085
Abstract: The disclosure relates to an ultra-wide passband five-order band-pass filter based on an LTCC process. The ultra-wide passband five-order band-pass filter comprises a ceramic substrate, a bottom input electrode, a bottom output electrode and a bottom grounding electrode. Five parallel resonators, a grounding polar plate, two series connection capacitors, two series connection inductors, a cross-coupling capacitor and a parallel inductor are arranged in the ceramic substrate; the two series connection capacitors comprise a first series capacitor and a second series capacitor; the two series connection inductors comprise a first series inductor and a second series inductor; and according to the filter, a five-order parallel resonance structure is adopted, out-of-band suppression is deepened through the five parallel resonance units, a cross coupling capacitor, a parallel inductor and two series connection inductors are innovatively introduced.
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公开(公告)号：US12073975B2
公开(公告)日：2024-08-27
申请号：US17418833
申请日：2020-01-07
Applicant: AUTONETWORKS TECHNOLOGIES, LTD. , SUMITOMO WIRING SYSTEMS, LTD. , SUMITOMO ELECTRIC INDUSTRIES, LTD.
Inventor： Takehito Kobayashi , Kohei Yoshikawa
CPC classification number: H01F27/022 , H01F27/24 , H01F27/28
Abstract: A reactor is provided with a coil including a pair of winding portions arranged in parallel, a magnetic core, a case for accommodating an assembly including the coil and the magnetic core, and a sealing resin portion to be filled into the case. The case includes a bottom plate portion, the assembly being placed on the bottom plate portion, a side wall portion constituted by a rectangular frame body for surrounding the assembly, and an opening provided on a side opposite to the bottom plate portion. The pair of winding portions are is orthogonal to the bottom plate portion. The side wall portion includes a pair of short side portions and a pair of long side portions. The short side portion or the long side portion includes a groove portion continuously provided from the opening side toward the bottom plate portion side and open inward of the case.
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公开(公告)号：US20240278031A1
公开(公告)日：2024-08-22
申请号：US18568493
申请日：2022-06-08
Applicant: Regenesis Biomedical, Inc.
Inventor： John Y. BABICO , Brian MOWER , Riley GILL
Abstract: A method and apparatus for providing pulsed electromagnetic field (PEMF) therapy to a patient is disclosed. In some embodiments, the PEMF therapy may be provided through an applicator that includes one or more PEMF emitter coils and a ferromagnetic field director. The ferromagnetic field director can direct a magnetic field away from an unused side of the applicator and towards the patient. In some embodiments, the applicator may include alternative therapy pads (e.g., heating pads, cooling pads, transcutaneous electrical nerve stimulation (TENS) pads, and the like) in addition to the PEMF emitter coils.
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公开(公告)号：US12068096B2
公开(公告)日：2024-08-20
申请号：US17624032
申请日：2020-07-02
Applicant: LG INNOTEK CO., LTD.
Inventor： Seok Bae , Jai Hoon Yeom , Jung Hwan Choi
CPC classification number: H01F27/24 , H01F27/28 , H02M3/1586
Abstract: An inductor according to an embodiment of the present invention may include: a plurality of first E-type cores, each of which has a base unit and a center leg extending in a first direction from the base unit; a first I-type core arranged in the first direction from the plurality of first E-type cores; and a coil wound around the center leg of each of the plurality of first E-type cores. Here, the plurality of E-type cores may be arranged in a line along the first direction.
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公开(公告)号：US20240274350A1
公开(公告)日：2024-08-15
申请号：US18644052
申请日：2024-04-23
Applicant: The Boeing Company
Inventor： Jian HUANG
CPC classification number: H01F30/12 , H01F27/24 , H01F27/28 , H01F30/02 , H02M7/12 , H02M5/10 , H02M5/14 , H02M7/043
Abstract: An apparatus includes a primary transformer circuit including a plurality of primary coils. The apparatus further includes a delta secondary transformer circuit configured to magnetically couple to the primary transformer circuit. The delta secondary transformer circuit includes a first plurality of secondary coils, a first plurality of nodes coupled to the first plurality of secondary coils, and a second plurality of secondary coils configured to magnetically couple to the plurality of primary coils. Each coil of the second plurality of secondary coils is physically coupled to a respective node of the first plurality of nodes.
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