摘要
介绍了基于荧光灯专用电流负反馈调光控制芯片 KA7543,功率因数校正芯片 KA7526的调光电子镇流器的设计方案。重点讨论了软启动的必要性和相应的技术解决方案,以及实现调光和功率因数校正的机理和方法。
Based on the special current feedback dimming ballast control IC KA7543 and the power factor correction IC KA7526.a design of fluorescent electronic dimming ballast is introduced.The necessity of soft start,the mechanism and method realiging dimming and power factor correction are discussed in detail.
出处
《电源技术应用》
2003年第12期41-44,共4页
Power Supply Technologles and Applications
