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公开(公告)号：US11571975B2
公开(公告)日：2023-02-07
申请号：US17022905
申请日：2020-09-16
Applicant: Utah State University
Inventor： Abhilash Kamineni , Reebal Nimri
IPC: H02J7/00 , B60L53/122 , H02J50/12
Abstract: A dynamic wireless power transfer base pad can include a housing, a first conductor, a second conductor, and a third conductor. The first conductor can be disposed within the housing substantially along a circumference and can be configured to conduct a first current to produce a first magnetic field. The second conductor can be disposed at a first end within the housing and can be configured to conduct a second current to produce a second magnetic field. A magnetic field at the first end can include a constructive superimposition of the first magnetic field with the second magnetic field. The third conductor can be disposed at a second end within the housing and can be configured to conduct a third current to produce a third magnetic field. A magnetic field at the second end can include a constructive superimposition of the first magnetic field with the third magnetic field.
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公开(公告)号：US11018529B2
公开(公告)日：2021-05-25
申请号：US16452281
申请日：2019-06-25
Applicant: Utah State University
Inventor： Anindya Chitta Bagchi , Tarak Saha , Abhilash Kamineni , Regan A. Zane
Abstract: An apparatus for inductive power transfer (“IPT”) includes an active bridge section with input terminals that receive power from a constant current source, where the active bridge section operates at a fixed switching frequency, a primary resonant capacitor connected in series with an output terminal of the active bridge section, and a primary IPT coil connected in series with the primary resonant capacitor, where power is transferred wirelessly between the primary IPT coil and a secondary IPT coil, and the secondary IPT coil is connected in series with a secondary resonant capacitor, which is connected in series with an output rectifier section that receives power from the secondary IPT coil and comprising output terminals for connection to a load. The apparatus includes a controller that regulates output voltage to the load, where the controller regulates output voltage to the load by controlling switching of the active bridge section.
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3.发明申请公开(公告)号：US20210082617A1
公开(公告)日：2021-03-18
申请号：US17023204
申请日：2020-09-16
Applicant: Utah State University
Inventor： Benny J. Varghese , Abhilash Kamineni , Regan A. Zane
IPC: H01F27/34 , H01F27/28 , H01F38/14 , H02J50/10 , B60L53/122
Abstract: A wireless power transfer pad for wireless power transfer with active field cancellation using multiple magnetic flux sinks includes a ferrite structure, a center coil positioned adjacent to the ferrite structure, and a plurality of side coils positioned around a perimeter of the center coil and positioned adjacent to the ferrite structure. A direction of current flow of the center coil is opposite a current flow in each of the plurality of side coils such that current flowing in a portion of the center coil adjacent to a portion of a side coil of the plurality of side coils is in a same direction as current in the portion of the side coil.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20210078425A1
公开(公告)日：2021-03-18
申请号：US17023026
申请日：2020-09-16
Applicant: Utah State University
Inventor： Benny J. Varghese , John Mermigas , Abhilash Kamineni , Regan A. Zane
IPC: B60L53/38 , B60L53/122 , E01C11/18
Abstract: An apparatus for inductive wireless charging for electric vehicles reinforced with non-conductive elements is disclosed. An apparatus includes a wireless power transfer (“WPT”) pad that includes at least one coil for wireless power transfer and a ferrite structure. The apparatus includes a solid material that the WPT pad is encased in. The apparatus includes at least one rigid member encased within the solid material. The at least one rigid member is configured to provide structural reinforcement to the solid material and/or WPT pad. The rigid member is non-metallic.
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5.发明授权公开(公告)号：US11521792B2
公开(公告)日：2022-12-06
申请号：US17023204
申请日：2020-09-16
Applicant: Utah State University
Inventor： Benny J. Varghese , Abhilash Kamineni , Regan A. Zane
IPC: H01F27/34 , H01F27/28 , B60L53/122 , H02J50/10 , H01F38/14
Abstract: A wireless power transfer pad for wireless power transfer with active field cancellation using multiple magnetic flux sinks includes a ferrite structure, a center coil positioned adjacent to the ferrite structure, and a plurality of side coils positioned around a perimeter of the center coil and positioned adjacent to the ferrite structure. A direction of current flow of the center coil is opposite a current flow in each of the plurality of side coils such that current flowing in a portion of the center coil adjacent to a portion of a side coil of the plurality of side coils is in a same direction as current in the portion of the side coil.
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公开(公告)号：US11521780B2
公开(公告)日：2022-12-06
申请号：US17023865
申请日：2020-09-17
Applicant: Utah State University
Inventor： Nicholas A. Roberts , James Mullen , Regan A. Zane , Abhilash Kamineni , Benny J. Varghese , Marvin Hailing
Abstract: An apparatus for a wireless power transfer (“WPT”) pad heat management system includes a ferrite structure positioned adjacent to a coil configured to wirelessly transfer power. The apparatus includes a plurality of heat spreaders positioned along a length of a component of the ferrite structure. Each of the plurality of heat spreaders is non-metallic. The apparatus includes a trough shaped to surround at least a portion of each of the plurality of heat spreaders, wherein the trough is non-metallic. The apparatus includes a phase change material (“PCM”) in the trough where at least a portion of the heat spreaders extend into the PCM. The ferrite structure, coil, plurality of heat spreaders, trough and PCM are encased in a solid material, and each of the plurality of heat spreaders comprises a material that transfers heat from the component of the ferrite structure to the PCM.
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公开(公告)号：US20210082613A1
公开(公告)日：2021-03-18
申请号：US17023865
申请日：2020-09-17
Applicant: Utah State University
Inventor： Nicholas A. Roberts , James Mullen , Regan A. Zane , Abhilash Kamineni , Benny J. Varghese , Marvin Halling
Abstract: An apparatus for a wireless power transfer (“WPT”) pad heat management system includes a ferrite structure positioned adjacent to a coil configured to wirelessly transfer power. The apparatus includes a plurality of heat spreaders positioned along a length of a component of the ferrite structure. Each of the plurality of heat spreaders is non-metallic. The apparatus includes a trough shaped to surround at least a portion of each of the plurality of heat spreaders, wherein the trough is non-metallic. The apparatus includes a phase change material (“PCM”) in the trough where at least a portion of the heat spreaders extend into the PCM. The ferrite structure, coil, plurality of heat spreaders, trough and PCM are encased in a solid material, and each of the plurality of heat spreaders comprises a material that transfers heat from the component of the ferrite structure to the PCM.
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公开(公告)号：US20210078417A1
公开(公告)日：2021-03-18
申请号：US17022905
申请日：2020-09-16
Inventor： Abhilash Kamineni , Reebal Nimri
IPC: B60L53/122 , H02J50/12
Abstract: A dynamic wireless power transfer base pad can include a housing, a first conductor, a second conductor, and a third conductor. The first conductor can be disposed within the housing substantially along a circumference and can be configured to conduct a first current to produce a first magnetic field. The second conductor can be disposed at a first end within the housing and can be configured to conduct a second current to produce a second magnetic field. A magnetic field at the first end can include a constructive superimposition of the first magnetic field with the second magnetic field. The third conductor can be disposed at a second end within the housing and can be configured to conduct a third current to produce a third magnetic field. A magnetic field at the second end can include a constructive superimposition of the first magnetic field with the third magnetic field.
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