摘要
该文设计了一种基于低压传输和供电的LED交通信号灯控制系统,采用36 V低压传输方式实现对LED交通信号灯的控制和驱动,并将传输的低压控制信号作为LED交通信号灯的供电电源。该系统可以适应较宽的输入电压变化范围,从而解决了低压信号在传输中存在的线损问题,保证了系统对LED交通信号灯的可靠控制。
A control system for LED traffic lights based on low-voltage transmission and power supply is designed in this paper, in which we use mode of 36 V low-voltage transmission to drive and control LED traffic lights, and take use of low-voltage control signals as power supply. The system can adapt to input voltage with a wide rang, so as to it solve the effect of line losses consisting in low-voltage signal transmission, and guarantee reliable control for LED traffic lights.
出处
《灯与照明》
2010年第4期53-55,共3页
Light & Lighting
基金
国家科技部科技创新基金"在混合交通条件下的优先信号控制系统"(国科发计字[2009]276号)
关键词
低压传输
交通信号灯
线损
low-voltage transmission
traffic lights
line loss
