Invention Grant
- Patent Title: Wireless power receiver with programmable power path
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Application No.: US14763829Application Date: 2015-01-08
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Publication No.: US10277072B2Publication Date: 2019-04-30
- Inventor: Yung-Chih Yen , Patrick Stanley Riehl , Hasnain Akram , Anand Satyamoorthy
- Applicant: MediaTek Singapore Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: MEDIATEK Singapore Pte. Ltd.
- Current Assignee: MEDIATEK Singapore Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Wolf, Greenfield & Sacks, P.C.
- International Application: PCT/US2015/010539 WO 20150108
- International Announcement: WO2015/105924 WO 20150716
- Main IPC: H02J50/10
- IPC: H02J50/10 ; H01F38/14 ; H04B5/00 ; H02J50/12 ; H02J5/00 ; H02J7/02 ; H02M3/156 ; H02M3/07 ; H02M7/217 ; G05F1/575 ; H02M1/00 ; H02M7/219 ; G05F1/56

Abstract:
A wireless power receiver IC in which the power path can be reconfigured as either a low-dropout regulator (LDO), a switched-mode power supply (SMPS) or a power switch (PSW) is provided. All three modes share the same pass device to reduce die area and share the same output terminal to reduce pin. In an inductive wireless receiver, the power path can be reprogrammed on the fly to LDO or PSW mode or can be reprogrammed on the fly to SMPS or PSW mode. In a resonant or multi-mode wireless receiver, the power path can be reprogrammed on the fly to SMPS or PSW mode. Furthermore, to achieve high power transfer efficiency performance, using N-channel MOSFET as its pass device has better efficiency and smaller die area than P-channel MOSFET pass device.
Public/Granted literature
- US20150364928A1 Wireless Power Receiver with Programmable Power Path Public/Granted day:2015-12-17
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