Invention Grant
- Patent Title: Shared power converter for a wireless transmitter device
-
Application No.: US15422345Application Date: 2017-02-01
-
Publication No.: US10734840B2Publication Date: 2020-08-04
- Inventor: Weihong Qiu , Zaki Moussaoui , Rohan Dayal
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Brownstein Hyatt Farber Schreck, LLP
- Main IPC: H02J50/12
- IPC: H02J50/12 ; H02J50/40 ; H02J7/02

Abstract:
A transmitter device is configured to transfer energy to multiple receiver devices. The transmitter device includes multiple transmitter coils, and a shared power converter is coupled to each transmitter coil. The shared power converter includes a leading half bridge and multiple trailing half bridges. Each transmitter coil is coupled between the leading half bridge and a respective one of the trailing half bridges. The shared power converter is dynamically configurable in that the leading half bridge may be coupled to multiple trailing half bridges when energy is to be transferred wirelessly to two or more receiver devices. The leading half bridge simultaneously operates with each trailing half bridge as an independent full-bridge phase shift inverter. A signal supplied to each transmitter coil is independently regulated by controlling a phase shift of a respective trailing half bridge with respect to the leading half bridge.
Public/Granted literature
- US20180062442A1 Shared Power Converter for a Wireless Transmitter Device Public/Granted day:2018-03-01
Information query