| 发明名称 |
ROBUST FOREIGN OBJECTS DETECTION |
| 摘要 |
An apparatus and method for performing foreign object detection for a wireless power transmitter. A matching network and transmit coil are energized, and a resonance is excited. The resonance is allowed to decay. A temporal characteristic of the decay is measured. The temporal characteristic is analyzed to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil. |
| 申请公布号 |
US2017117755(A1) |
申请公布日期 |
2017.04.27 |
| 申请号 |
US201615244107 |
申请日期 |
2016.08.23 |
| 申请人 |
MediaTek Inc. |
发明人 |
Muratov Vladimir A.;Riehl Patrick Stanley;Plumb William |
| 分类号 |
H02J50/60;H02J7/02;H02J50/12 |
主分类号 |
H02J50/60 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A foreign object detection method for a wireless power transmitter having a matching network and transmit coil, the method comprising:
(A) energizing the matching network and transmit coil and exciting resonance between the matching network and transmit coil; (B) allowing the resonance to decay; (C) measuring a temporal characteristic of the decay; and (D) analyzing the temporal characteristic to determine whether a foreign object is coupled to an electromagnetic field generated by the transmit coil. |
| 地址 |
Hsin-Chu TW |
