Wide voltage input intelligent photovoltaic charging control system with maximum power point tracking (MPPT) function

The invention discloses a wide voltage input intelligent photovoltaic charging control system with a maximum power point tracking (MPPT) function, which comprises a solar battery array and a storage battery. The solar battery array is connected with a buck-boost circuit connected with a charging circuit, and the charging circuit is connected with the storage battery. The wide voltage input intelligent photovoltaic charging control system further comprises a single microcomputer controller connected with the charging circuit, the output end of the charging circuit is fed back to the single chip microcomputer controller through a current voltage detection circuit, the single chip microcomputer controller is connected with the buck-boost circuit through a switch PWM control circuit, the storage battery is further connected with a temperature sensor used for monitoring surface temperature of the storage battery in real time, the temperature sensor is connected with a single chip microcomputer control circuit, and the single chip microcomputer control circuit is further connected with a liquid crystal module used for displaying and alarming. The wide voltage input intelligent photovoltaic charging control system can conduct preset model charging on a 12V storage battery in a range of 5V to 26V and is stable and reliable in system work.