- 专利标题: Wireless power transmitters for transmitting power at extended separation distances utilizing T-Core shielding
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申请号: US17132864申请日: 2020-12-23
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公开(公告)号: US11418068B2公开(公告)日: 2022-08-16
- 发明人: Md Nazmul Alam
- 申请人: NuCurrent, Inc.
- 申请人地址: US IL Chicago
- 专利权人: NuCurrent, Inc.
- 当前专利权人: NuCurrent, Inc.
- 当前专利权人地址: US IL Chicago
- 代理机构: Lee Sullivan Shea & Smith LLP
- 主分类号: H02J50/70
- IPC分类号: H02J50/70 ; H02J50/80 ; H02J50/12
摘要:
A power transmitter is configured for transmission of wireless power, to a wireless receiver, at extended ranges, including a separation gap greater than 8 millimeters (mm). The power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a bottom face. The power transmitter further includes a shielding comprising a ferrite core and a magnetic backing, the magnetic backing configured to substantially back the bottom face of the coil.
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