Voltage self-adapting solar charger with MPPT (Maximum Power Point Tracking) function and application method of voltage self-adapting solar charger

The invention relates to a voltage self-adapting solar charger with an MPPT (Maximum Power Point Tracking) function and an application method of the voltage self-adapting solar charger. The voltage self-adapting solar charger comprises a solar cell panel, a DC-DC (Direct Current-Direct Current) conversion module and an MPPT control module, wherein a control end of the DC-DC conversion module is connected with the MPPT control module; an input end of the DC-DC conversion module is connected with an anode-cathode end of the solar cell panel; an output end of the DC-DC module is connected with an anode-cathode end of portable charging equipment; the MPPT control module comprises an MCU (Micro Controller Unit), a first voltage detection unit, a second voltage detection unit, a temperature measurement unit, an auxiliary power supply and a liquid crystal display unit that are connected with the MCU; the auxiliary power supply and the first voltage detection unit are connected with the anode-cathode end of the solar cell panel; and the second voltage detection unit is connected with the anode-cathode end of the portable charging equipment. The charger has a voltage self-adapting function, a high solar energy utilization rate and high charging speed, and can charge various portable equipment cells.