公开(公告)号：US10193375B2

公开(公告)日：2019-01-29

申请号：US15346273

申请日：2016-11-08

Applicant: MediaTek Inc.

Inventor： Philip Frank Tustin ,  William Plumb ,  Patrick Stanley Riehl

IPC: H02J7/02 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

Abstract: Methods and apparatus for providing closed loop current control in a wireless power transmitter. The method comprises adjusting a transmitter coil current generated by the wireless power transmitter based, at least in part, on first feedback reported by at least one wireless power receiver and second feedback based on a measurement of the transmitter coil current.

公开(公告)号：US10326314B2

公开(公告)日：2019-06-18

申请号：US15411749

申请日：2017-01-20

Applicant: MediaTek Inc.

Inventor： Patrick Stanley Riehl ,  Hasnain Akram ,  Philip Frank Tustin

IPC: H02J50/12 ,  H03F3/217 ,  H03F3/24 ,  H02J50/40 ,  H02J50/60 ,  H02J7/02

Abstract: A wireless power transmitter includes an inverter in which a voltage varies in response to a resonant network and circuitry configured to (A) measure a characteristic indicative of a load seen by the wireless power transmitter, (B) determine a duty cycle of the inverter based upon the characteristic, and (C) switch the inverter with the determined duty cycle.

公开(公告)号：US20170302110A1

公开(公告)日：2017-10-19

申请号：US15411749

申请日：2017-01-20

Applicant: MediaTek Inc.

Inventor： Patrick Stanley Riehl ,  Hasnain Akram ,  Philip Frank Tustin

IPC: H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/40 ,  H02J50/60 ,  H03F3/2176 ,  H03F3/245

Abstract: A wireless power transmitter includes an inverter in which a voltage varies in response to a resonant network and circuitry configured to (A) measure a characteristic indicative of a load seen by the wireless power transmitter, (B) determine a duty cycle of the inverter based upon the characteristic, and (C) switch the inverter with the determined duty cycle.

公开(公告)号：US20170222469A1

公开(公告)日：2017-08-03

申请号：US15346273

申请日：2016-11-08

Applicant: MediaTek Inc.

Inventor： Philip Frank Tustin ,  William Plumb ,  Patrick Stanley Riehl

IPC: H02J7/02 ,  H02J50/40 ,  H02J50/80 ,  H02J50/12

CPC classification number: H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

Abstract: Methods and apparatus for providing closed loop current control in a wireless power transmitter. The method comprises adjusting a transmitter coil current generated by the wireless power transmitter based, at least in part, on first feedback reported by at least one wireless power receiver and second feedback based on a measurement of the transmitter coil current.