Combining the application characteristics of solar photovoltaic system and the driving characteristics of high-power lighting LED, the driving technology of solar semiconductor lighting is studied, and a new solar street light controller is developed, which can not only realize the protection of overcharge and over-discharge of the battery in the photovoltaic system, but also realize the controllable adjustment of the brightness of the LED light source. Keywords: solar energy; semiconductor lighting; driving technology; high-power LED light-emitting diode (LED) is a semiconductor light-emitting device that can convert electrical energy into visible light. It has the advantages of energy saving, environmental protection, long life, and maintenance-free. In the past ten years, it has been widely used in electronic instruments, automobiles, traffic signal indication, electronic display screens, urban landscape lighting, etc. Because LED uses direct current and has a low working voltage, when using conventional power supply systems (AC, 220V, 380V, etc.) as the power supply of LED, the power supply must be converted into low-voltage, direct current before it can be used, which not only increases the cost of the lighting system, but also reduces the utilization rate of energy. Solar semiconductor lighting is a combination of solar cells providing power and LEDs as light sources. Solar cells directly convert light energy into DC power, and solar cell modules can be combined in series or parallel to obtain the actual required voltage. These characteristics are exactly matched with LEDs and cannot be matched by traditional power supply systems. Solar semiconductor lighting system structure diagram
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