公开(公告)号：US09866073B2

公开(公告)日：2018-01-09

申请号：US15306575

申请日：2015-06-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Neil Francis Joye ,  Andries Van Wageningen ,  Simon George Abernethy ,  Klaas Jacob Lulofs

IPC: H02J50/12 ,  H04B5/00

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/10 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0075 ,  H04B5/0087

Abstract: A wireless power transfer system includes a power transmitter (201) arranged to provide a power transfer to a power receiver (205) via a power transfer signal. The power receiver (205) comprises a first mode controller (709) for transmitting a standby mode exit request to the power transmitter (201) by changing a loading of a communication inductor (209) of the power transmitter (201). The power transmitter (201) comprises a mode controller (405) which controls the power transmitter (201) to operate in a standby mode wherein a presence of the power receiver (205) is detected but no power transfer signal is generated. It furthermore comprises a detector (403) for detecting an impedance change of the communication inductor (209). The mode controller (405) is arranged to initiate a transition from the standby mode to a power transfer mode in response to the detector (403) detecting the impedance change.

公开(公告)号：US11451094B2

公开(公告)日：2022-09-20

申请号：US16922226

申请日：2020-07-07

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Neil Francis Joye ,  Andries Van Wageningen ,  Simon George Abernethy ,  Klaas Jacob Lulofs

IPC: H02J50/12 ,  H02J50/60 ,  H02J50/90 ,  H02J50/80 ,  H04B5/00 ,  H02J50/10

Abstract: A wireless power transfer system includes a power transmitter (201) arranged to provide a power transfer to a power receiver (205) via a power transfer signal. The power receiver (205) comprises a first mode controller (709) for transmitting a standby mode exit request to the power transmitter (201) by changing a loading of a communication inductor (209) of the power transmitter (201). The power transmitter (201) comprises a mode controller (405) which controls the power transmitter (201) to operate in a standby mode wherein a presence of the power receiver (205) is detected but no power transfer signal is generated. It furthermore comprises a detector (403) for detecting an impedance change of the communication inductor (209). The mode controller (405) is arranged to initiate a transition from the standby mode to a power transfer mode in response to the detector (403) detecting the impedance change.

公开(公告)号：US10734843B2

公开(公告)日：2020-08-04

申请号：US15849873

申请日：2017-12-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Neil Francis Joye ,  Andries Van Wageningen ,  Simon George Abernethy ,  Klaas Jacob Lulofs

IPC: H02J50/10 ,  H02J50/12 ,  H02J7/02 ,  H02J50/60 ,  H02J50/90 ,  H02J50/80 ,  H04B5/00

Abstract: A wireless power transfer system includes a power transmitter configured to provide a power transfer to a power receiver via a power transfer signal. The power receiver includes a first mode controller configured to transmit a standby mode exit request to the power transmitter by changing a loading of a communication inductor of the power transmitter. The power transmitter includes a mode controller configured to control the power transmitter to operate in a standby mode where a presence of the power receiver is detected but no power transfer signal is generated. A detector is configured to detect an impedance change of the communication inductor. The mode controller is configured to initiate a transition from the standby mode to a power transfer mode in response to the detector detecting the impedance change.