Invention Grant
- Patent Title: Recovery of modulation amplitude in wireless charger tx demodulation
-
Application No.: US16052492Application Date: 2018-08-01
-
Publication No.: US11309738B2Publication Date: 2022-04-19
- Inventor: Yue Wang , Lijie Zhao
- Applicant: Integrated Device Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Integrated Device Technology, Inc.
- Current Assignee: Integrated Device Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Haynes and Boone, LLP
- Main IPC: H02J50/12
- IPC: H02J50/12 ; H02J7/02

Abstract:
In accordance with aspects of the present invention, a method and apparatus for demodulating an amplitude-modulated wireless power signal is presented. A method of receiving an amplitude modulated component of a wireless power transmission signal according to some embodiments includes receiving an input signal, wherein the input signal is based on an amplitude modulated wireless power signal; and applying an offset to the input signal to receive the amplitude modulated component. A demodulator according to some embodiments can include a first voltage-to-current converter that receives an input signal related to an amplitude modulated wireless power signal; a second voltage-to-current converter that receives an offset signal; and a summing node that adjusts a first current produced by the first voltage-to-current converter by a second current produced by the second voltage-to-current converter to produce an output signal.
Public/Granted literature
- US20200044486A1 RECOVERY OF MODULATION AMPLITUDE IN WIRELESS CHARGER TX DEMODULATION Public/Granted day:2020-02-06
Information query