A high-efficiency, miniaturized maximum power tracking circuit chip system

Abstract

This invention discloses a high-efficiency, miniaturized maximum power point tracking (MPPT) circuit chip system, comprising a solar photovoltaic array, a power monitoring circuit, a main controller circuit, a drive circuit, and a DC-DC conversion circuit. The solar photovoltaic array collects ambient light energy and converts it into electrical energy; the power monitoring circuit collects the real-time voltage and current values ​​converted by the solar photovoltaic array and sends the data to the main controller; the main controller circuit collects and analyzes the real-time voltage and current values ​​to implement a maximum power point tracking control algorithm (perturbation and observation method) and generate adjustable PWM pulses; the drive circuit increases the amplitude of the PWM pulses generated by the main controller and transmits them to the DC-DC conversion circuit to ensure its normal operation. This invention can efficiently collect and convert ambient light energy, and the overall circuit design is highly integrated, offering advantages such as small size and light weight, while also demonstrating high energy transfer efficiency in the maximum power point tracking circuit chip system.

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