In the 1970s, there was a worldwide energy crisis. The urgency of energy saving by high-power electronic ballasts has led many companies to focus on energy-saving light sources and electronic ballasts for fluorescent lamps. With the rapid development of semiconductor technology, various high-reflex Pressure power switching devices continue to emerge, providing conditions for the development of electronic ballasts. In the late 1970s, foreign manufacturers took the lead in launching the first generation of electronic ballasts, a major innovation in the history of lighting development.
Because of its many advantages such as energy saving, it has attracted great attention and interest from all over the world. It is considered to be an ideal product to replace the magnetic ballast. Later, some well-known enterprises have invested considerable manpower and material resources to carry out a higher level. Research and development. Due to the rapid advancement of microelectronics technology, electronic ballasts have been promoted to high performance and high reliability. Many semiconductor companies have introduced a series of products for dedicated power switching devices and control ICs. In 1984, Siemens developed active devices such as TPA4812. Power factor correction IC with a power factor of 0.99. Subsequently, some companies have successively launched integrated electronic ballasts. In 1989, Finland's Hell Valley Company successfully launched electronically adjustable ballasts for dimmable monolithic integrated circuits. Electronic ballasts are now widely used in the world, especially in developed countries. .
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