摘要:太阳能属于清洁能源,取之不尽,用之不竭;LED灯发光效率高、使用寿命长且能耗低。基于太阳能和LED灯的这些优点,设计出太阳能LED楼道灯。它与传统声光双控楼道灯相比较,从能源使用方面看,本设计使用太阳能电池板提供电驱动,从节约能源方面看,本设计使用LED灯照明,较之传统白炽灯,省电耐用且不易损坏。本设计在电源电路部分采用了LM7806稳压器以达到对电源电路输出电压的稳定控制。在蓄电池充放电的过程中,通过保护电路对蓄电池的电压进行观测与比较,来达到对蓄电池过充过放保护的目的。本设计最终要实现在白天太阳能电池板给蓄电池充电,晚上蓄电池向主电路供电,当有声音时LED灯亮,声音消失后,LED灯灭,如此循环。55443
毕业论文关键词:太阳能,LED灯,声光双控,LM7806稳压器,蓄电池,过充、过放保护
Abstract: Solar energy is a kind of clean and inexhaustible energy. LED light has high luminous efficiency, long life and low energy consumption. Based on the advantages of solar and LED light, we design solar LED corridor lights. Compared with the traditional sound and light dual-controlled corridor lights, this design uses solar panels to provide electric power, and is energy saving and not easily damaged due to using LED. The design uses LM7806 regulator to stably control the output voltage of power circuit. In the process of charging and discharging the battery, protection circuit observes and compares battery, to achieve the battery overcharge and over discharge protection purposes. Our final goal in this design is archiving solar panels charge the battery during the day and the battery supplies the main circuit power at night. LED lights up with sound and turns off without sound.
Key words: Solar power, LED lights, sound and light control, LM7806 regulator, battery, overcharge, overdischarge protection
目录
1前言 4
2设计任务及要求 4
3系统总体方框图 5
4系统硬件设计 6
4.1电源电路 6
4.2照明负载 7
4.3太阳能电池板组件简介 8
4.4蓄电池的工作原理 9
4.5蓄电池和太阳能电池板规格的选用 10
4.6过充、过放保护电路 10
4.7声光双控控制电路 11
4.7.1驻极体话筒 11
4.7.2光敏电阻 13
4.7.3控制电路的实现 14
4.8元件清单 15
结论 16
参考文献 17
致谢 18
附录一总体电路图 19
1前言
目前,国内的楼宇楼道照明都是采用传统的交流220V白炽灯或节能灯,每个楼道装上手控或声光控等控制开关和时间控制器,这种楼道照明系统使用已经几十年了,现在还在被广泛采用,但这种楼道照明系统存在着这样或那样的缺点:
(1)电费分摊难;一个楼道有好多住户,楼道灯的电源接在哪一户都不合理。
(2)白炽灯或节能灯使用寿命短,尤其是在像楼道灯这样需要经常启闭的情况下,灯的使用寿命更短 ,而且节能灯含汞,污染环境。
对于这些缺点,本设计做了相应的改善: 声光双控太阳能LED楼道灯的设计+电路图:http://www.youerw.com/zidonghua/lunwen_59811.html