发明名称 |
SYSTEMS AND METHODS FOR ADJUSTING MAGNETIC FIELD DISTRIBUTION USING FERROMAGNETIC MATERIAL |
摘要 |
A uniform magnetic field may provide better performance in wireless power transmitters due to smaller impedance variations in an output of a power amplifier of a wireless power transmitter and also allow for wireless power transmitter pads to be thinner. One aspect of the disclosure provides a device for wireless power transfer. The device comprises a substantially planar transmit antenna that is configured to generate a magnetic field. The device also comprises a pad having a charging surface. At least a portion of the transmit antenna is disposed in the pad. The device also comprises a ferromagnetic material having a shape and a position relative to the transmit antenna. At least one of the shape or position of the ferromagnetic material, or a combination thereof, is selected to modify a distribution of the magnetic field at the charging surface. |
申请公布号 |
WO2016036604(A1) |
申请公布日期 |
2016.03.10 |
申请号 |
WO2015US47512 |
申请日期 |
2015.08.28 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
NEJATALI, SAEED;CAROBOLANTE, FRANCESCO;TSENG, RYAN;CHI, MEI-LI;JEONG, SEONG, HEON |
分类号 |
H02J7/02;H02J5/00 |
主分类号 |
H02J7/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|