Block Diagram

XL1024
Charge
super-capacitor
Stepper motor
Stepper
5V/9V/12V Vin
XL1024
WP31_V2.PcbDoc
Gate
Driver
TX COIL
Resonant
Capacitor
COMM
Voltage
Divider
OVP-PWR
Limit CKT
5V/9V/12V Vin
5V LDO
Internal RC oscillation
110K-205KHz
5V LDO
MCU
MCU