节能灯电子镇流器介绍（Introduction of electronic ballasts for energy saving lamps）.docVIP

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节能灯电子镇流器介绍（Introduction of electronic ballasts for energy saving lamps）.doc

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节能灯电子镇流器介绍（Introduction of electronic ballasts for energy saving lamps） I. knowledge of electronic ballast 1, overview: The world energy crisis in 1970s, on the urgency of energy saving so many companies to energy-saving light source and a fluorescent lamp electronic ballast, along with the rapid development of semiconductor technology, all kinds of high pressure power anti switching devices continue to emerge, for the development of the electronic ballast provides conditions, at the end of 70s, launched the first foreign manufacturers the first generation of electronic ballast is the innovation and development history of lighting on a major. Because it has many advantages such as energy saving, has aroused great interest and concern of the whole world, that is the ideal product to replace the ballast, then some famous enterprises have invested a lot of manpower and material resources to carry on the research and development of a higher level. As the microelectronic technology, promote the development of high performance electronic ballast with high reliability, many semiconductor company launched a special power switching device and control integrated circuit products, in 1984, SIEMENS developed the TPA4812 active power factor correction apparatus IC, power factor reached 0.99. Then some companies have launched the integrated electronic ballast for 89 years, Finland Heerwali company has successfully launched a dimmable electronic ballast monolithic integrated circuit, electronic ballast at present in the world especially the developed countries have the application. Research on electronic ballast development started late in China, technology of low starting point, early lack of understanding of the difficulty and complexity of this product, the development of special semiconductor devices did not keep up with the quality of the products can pass, but the market is not standardized, a large number of cheap inferior goods thrown to the market, so that consumers suffe