文档介绍：摘要
自从我国在20世纪80年代末、90年代初研制并生产电子镇流器和节能灯以来,这一新兴的绿色照明产业已经得到了长足的发展,目前我国已经成为世界上照明电器产品生产规模最大的国家,产量居世界首位。二十一世纪是一个能源短缺的时代,每个国家都为了节约能源出台了相应的政策措施,尤其是在中国。因为在中国,照明大约占了国家总用电量的12%,因此,采用节能型照明灯正从会造成极大能源浪费的白炽灯向节能型的灯具(如荧光灯,LED灯等等)过渡。绿色照明工程要求人们不要简单的认为只是节能,而是要从更高层次地去认识,提高到节约资源、保护环境的高度对待,这样意义更广泛。绿色照明工程提出的宗旨不只是个经济效益问题,而是主要着眼于资源的利用和环境保护的大课题。通过照明节能,从而减少发电量,从侧面减少SO2,CO2的排放,对环境的保护都有深远的意义。
本文会重点介绍荧光灯电子镇流器的基本原理以及经典的镇流器设计。荧光灯具有负阻特性,必须和有限流作用的镇流器串联使用,电子镇流器的最基本工作原理是把50Hz的工频交流电变成20kHz到50KHz的较高频率的交流电,达到逆变的效果。荧光灯的工作温度不高,气压变化小,启动和工作时灯管阻抗变化较小,因此镇流器比较简单。荧光灯具有结构简单、价格较低、发光效率高、显***能好、发光均匀、亮度适中和使用寿命长,所以应该大量推广。因此,镇流器的设计的好坏将起到至关重要的作用。
关键词:荧光灯;电子镇流器;逆变;设计
ABSTRACT
The emerging green lighting industries has got significant progress,since when our country has researched and produced electrical ballast pact fluorescent lamp from the late 1980s to the early our country has been the largest production scale of Lighting &Electronics and has the maximal output in the is short of energy sources in the 21st saving energy sources, new policy e out by all country especially China,lighting occupies about 12% of national electric power consumption,so pact Fluorescent Lamp is used for transition of the incandescent green lighting project is not simply considered as energy-saving,but is recognized highly to save energy and protect the aim of green lighting project is not only the economic benefits, but mainly focuses on making use of resource and protecting is a profound effect of environmental protection to reduce power output and emission of SO2 and CO2 by energy-saving lighting.
The article emphasizes on the general theory of fluorescent lamp’s electrical ballast and classical design of fluorescent lamp of negative resistance characteristic,should be uesd by series connection to the current limiting basic principle of electrical ballast is a inverter effect,that converts the direct current from 50Hz power frequenc