发明名称 |
FRONT-END CIRCUITS FOR WIRELESS POWER RECEIVERS, WIRELESS CHARGERS AND WIRELESS CHARGING |
摘要 |
A front-end circuit is disclosed for a resonant wireless power receiver, the circuit comprising: input terminals for connection to an antenna; a rectifier configured to rectify an AC signal having a peak input voltage received at the input terminals and to provide an output having an output voltage; an over-voltage detector configured to at least one of detect the output voltage exceeding a threshold voltage an overvoltage and detect the peak input voltage exceeding the threshold voltage; and an over-voltage controller configured to provide an electrical short-circuit across the input terminals in response to the respective output voltage or peak input voltage exceeding the threshold voltage. Integrated circuits, NFC devices and mobile device comprising such a front-end circuit are also disclosed, as is a method for controlling wireless charging. |
申请公布号 |
US2016111892(A1) |
申请公布日期 |
2016.04.21 |
申请号 |
US201514871666 |
申请日期 |
2015.09.30 |
申请人 |
NXP B.V. |
发明人 |
Joehren Michael |
分类号 |
H02J5/00;H02H9/04 |
主分类号 |
H02J5/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A front-end circuit for a wireless power receiver, the circuit comprising:
input terminals for connection to an antenna; a rectifier configured to rectify an AC signal having a peak input voltage received at the input terminals and to provide an output having an output voltage; an over-voltage detector configured to at least one of detect the output voltage exceeding a threshold voltage an overvoltage and detect the peak input voltage exceeding the threshold voltage; and an over-voltage controller configured to provide an electrical short-circuit across the input terminals in response to the respective output voltage or peak input voltage exceeding the threshold voltage. |
地址 |
Eindhoven NL |