Block Diagram

Software design
System structure diagram is as follows：
Master MCU
FM3313
Power section
Internal RTC clock
32.768MHz
Button test
LED digital display
Wireless charge IC management
D9100
FOD
Wireless charging management
D9015
Wireless charging indicator
System structure diagram
Antenna:CL1:CR2032-BS-2-1
Frequency:110-205kHZ