Research of Energy-saving Control System of an Intelligent Variable Pressure Street Lamp

The paper designed an energy-saving control system of a kind of intelligent variable pressure street lamp,controlling the unit a transformer tap switch through the MCU to control the load on the output voltage,in order to control the energy-saving requirments.This program can save about 30% energy,while in order to improve the life of the system,the overvoltage or undervoltage fault alarm modules also were designed.