1、 XX 大学本科生毕业论文(设计) 摘 要 城市当中规模庞大的路灯系统对电能的消耗也相当可观， 特别是路灯一般需要通宵长 明，路灯的节能效应不可低估。除了在器件上选择节能产品和保持合理照度外，通过控制 来实现节能也是很有效的。它通过使用电力电子器件，单片机，低压电器等进行调压等自 动控制，降低过高的夜间电压,合理调压，按时开关，使路灯系统达到节能的目的。其核 心就是设计节能控制系统的电路， 特别是使用电力电子调压技术。 PWM 技术就是其中之一， 他基于单片机和 3525 驱动电路来实现控制。较传统方法更加有效，污染较小。通过 3525 的特性的应用，设计控制电路，由输入基准电压控制输出。 关
2、键词 路灯节能 调压控制 PWM 单片机 3525 Abstract In modern large cities, the huge streetlamp system costs so much power, and it must be on work all the night to meet the need of safety, so it is valuable to save energy resources. There are three ways-keep certain lightness, adopting low-power-cost products, and a
3、 better control system. The last one will save energy effectively. It works by the drives of the single chip computer, electric electron technology controlling voltage and low voltage electric equipments to save power. The control system will turn down the high night voltage to a usual level. The us
4、eful control can adjust voltage, turn on and turn off lights. By now, it is widely used in modern cities and the technology has been advanced, and PWM is one of the technologies. It is more effectively, and crates less harmonic wave pollution than usual method. According to the application characteristic of KA3525，we have designed a kind of PWM control circuit based on KA3525 with the auxiliary of onechip computer，realized steady voltage and adjustable out puttin
