[Solar Lamp Factory School] Simple analysis of LED street lamp power supply

LED light source is a semiconductor light source, its own light-emitting characteristics determine its failure rate is quite low, and the failure rate of the connection part is also quite low. The quality of the LED drive power directly determines the life of the entire street lamp, so the power supply has become the LED street lamp industry The core part of it. Generally, LED street lamp power supply is the most efficient switching power supply, up to 95%, power factor up to 0.99; high reliability and long life, in line with IP67 waterproof rating; with overvoltage, overcurrent, overtemperature and short circuit protection, constant current and constant voltage optional, with It has lightning protection design (IE-61000-4-5Class) and complies with global safety regulations and electromagnetic compatibility standards. The LED street lamp power supply requires a certain design margin. The waterproof power supply of the power supply can ensure stable and reliable operation when the input voltage is 176-305VAC, and for some special requirements, there are also many power supplies that can work normally when the input voltage is 90-305VAC.　　The country advocates energy conservation and environmental protection, and the LED street lamp project is currently the representative project of the national energy conservation and emission reduction project. In the light-emitting components, the characteristics of the LED itself have achieved very good energy-saving effects, but the power supply section cannot be ignored. The energy-saving power supply will undoubtedly be the most important part of the street lamp power supply in the future.