Invention Grant
- Patent Title: Wireless power transfer with active field cancellation using multiple magnetic flux sinks
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Application No.: US17023204Application Date: 2020-09-16
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Publication No.: US11521792B2Publication Date: 2022-12-06
- Inventor: Benny J. Varghese , Abhilash Kamineni , Regan A. Zane
- Applicant: Utah State University
- Applicant Address: US UT Logan
- Assignee: Utah State University
- Current Assignee: Utah State University
- Current Assignee Address: US UT Logan
- Agency: Kunzler Bean & Adamson
- Agent Bruce R. Needham
- Main IPC: H01F27/34
- 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.
Public/Granted literature
- US20210082617A1 WIRELESS POWER TRANSFER WITH ACTIVE FIELD CANCELLATION USING MULTIPLE MAGNETIC FLUX SINKS Public/Granted day:2021-03-18
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