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P9222-R bảng dữ liệu(PDF) 15 Page - Renesas Technology Corp

tên linh kiện P9222-R
Giải thích chi tiết về linh kiện  Wireless Power Receiver for Low Power Applications
PDF  58 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

P9222-R bảng dữ liệu(HTML) 15 Page - Renesas Technology Corp

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P9222-R/RN Datasheet
© 2019-2022 Renesas Electronics Corporation
15
May 5, 2022
3. Description of the Wireless Power Charging System
A wireless power charging system has a base station with one or more transmitter coils that make power available via DC-to-AC inverter(s) and
transmit the power over a strongly-coupled inductor pair (magnetic induction), or over a loosely-coupled inductor pair (magnetic resonance) to
a receiver in a mobile device. A WPC (see Figure 4) uses near-field magnetic induction between coils and can be a free-positioning or
magnetically-guided type of system.
In WPC Inductive systems, the amount of power transferred to the mobile device is controlled by the receiver. The receiver sends communication
packets to the transmitter to increase power, decrease power, or maintain the power level. The bit rate for the Rx-to-Tx communication link is
2kbps for WPC receivers. It is modulated on top of the power link that exists.
Figure 4. Block Diagram of WPC Compliant Wireless Power Transfer System
Messages
Base Station
Transmitter
Transmitter
Mobile Device
Receiver
Transmitter
Power
Power Conversion
Control
Control
Comm
Comm
Reflected Load
Mod
DeMod
Power Pick-up
Note: For the more current information, see the WPC Specification at http://www.wirelesspowerconsortium.com/.



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