公开(公告)号：US20180351409A1

公开(公告)日：2018-12-06

申请号：US16041553

申请日：2018-07-20

Applicant: Apple Inc.

Inventor： Rex Pius Huang

IPC: H02J50/12 ,  H02J5/00 ,  H02M1/08 ,  H02M3/335 ,  H02J50/80

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J50/80 ,  H02M1/08 ,  H02M3/33507 ,  H02M3/33569 ,  H04B5/0037 ,  H04B5/0081

Abstract: An inductive power transmitter for an inductive power transfer system including a power regulation circuit utilising only primary side parameters to control power flow. The duty cycle of the waveform applied to the transmitter coil is adjusted based on the ratio of the output current of the power supply and the current supplied to the resonant circuit (the current ratio). This may be further compensated based on the amount of power supplied to the transmitter.

公开(公告)号：US20200083747A1

公开(公告)日：2020-03-12

申请号：US16213915

申请日：2018-12-07

Applicant: Apple Inc.

Inventor： Rex Pius Huang ,  Michael Scott Eckert ,  Mikhal De Jesus ,  Arunim Kumar ,  Atul Salvekar

IPC: H02J50/12 ,  H02J7/02 ,  H02J5/00 ,  H02J50/80

Abstract: An inductive power transmitter and an inductive power receiver include communication circuitry to communicate using modulation of the power transfer field. The inductive power transmitter or the inductive power receiver includes monitoring circuitry to determine a communication fault condition. If a communication fault condition is determined, a converter of the inductive power transmitter or inductive power receiver can adjust a control parameter.

公开(公告)号：US11070088B2

公开(公告)日：2021-07-20

申请号：US16213915

申请日：2018-12-07

Applicant: Apple Inc.

Inventor： Rex Pius Huang ,  Michael Scott Eckert ,  Mikhal De Jesus ,  Arunim Kumar ,  Atul Salvekar

IPC: H02J50/12 ,  H02J50/80 ,  H02J5/00 ,  H02J7/02

Abstract: An inductive power transmitter and an inductive power receiver include communication circuitry to communicate using modulation of the power transfer field. The inductive power transmitter or the inductive power receiver includes monitoring circuitry to determine a communication fault condition. If a communication fault condition is determined, a converter of the inductive power transmitter or inductive power receiver can adjust a control parameter.

公开(公告)号：US10819154B2

公开(公告)日：2020-10-27

申请号：US16041553

申请日：2018-07-20

Applicant: Apple Inc.

Inventor： Rex Pius Huang

IPC: H02J50/12 ,  H04B5/00 ,  H02J5/00 ,  H02M1/08 ,  H02J50/80 ,  H02M3/335

Abstract: An inductive power transmitter for an inductive power transfer system including a power regulation circuit utilising only primary side parameters to control power flow. The duty cycle of the waveform applied to the transmitter coil is adjusted based on the ratio of the output current of the power supply and the current supplied to the resonant circuit (the current ratio). This may be further compensated based on the amount of power supplied to the transmitter.