LOW-VOLTAGE STARTUP CIRCUIT FOR LOW-INDUCTANCE WIRELESS CHARGING SYSTEM AND WIRELESS CHARGING SYSTEM

A low-voltage startup circuit for a low-inductance wireless charging systemincludes a voltage input port Vrect, a common grounding port VSS, a PMOS driver signal control module pgate_ctrl_logic, a NMOS MN1 and a PMOS MP1, a Vmax power supply selection control module vmax_sel, a power-on reset module por, a low-voltage band-gap reference circuit lv_bgr, a rectifier logic control module boost_logic, a rectifier SR and a rectifier output under_voltage protection control module vrect_uvlo. The low-voltage startup circuit can normally start the MCU at the Vrect voltage under a low-voltage condition (1.4 V).