CYW4343X
Figure 11. A4WP System Block Diagram
BT
Power Receiving Unit
(PRU)
A4WP‐Compatible Mobile Device
BLE Server
Bluetooth low‐energy (BLE) bidirectional
communication enables the transmitter to
adapt to mobile device system needs.
Wireless Power Transfer at 6.78 MHz
BT
Power Transmitting Unit
(PTU)
aka Power Plate
BLE Client
Note: A single PTU can be used to charge multiple devices.
Figure 12 shows an example of the magnetic coupling between a single PTU and one or more PRUs.
Figure 12. Magnetic Coupling for Wireless Charging
Power Transmitting
Unit
Power Receiving Unit(s)
RX1
TX
RX2
RX3
Figure 13 shows an example A4WP-compliant wireless charging implementation.
Document No. 002-14797 Rev. *H
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