摘要
LED照明由于具有发光效率高、工作寿命长、启动时间短、使用安全等一系列优点,在室内外照明领域得到了广泛的应用。但是,LED的正向工作电压只有3V—4V,并且正常使用时为得到足够的lm输出,需多只LED串联、并联使用。这就出现了LED负载与驱动电源之间的电压和电流匹配问题。如果两者之间匹配的好则可以有效地发挥LED的性能指标。
LED lighting has lighting efficiency is high, working life is long, using safely etc advantages, LED lighting has been got widely used in the lighting fields. But LED＇s forward drop voltage only has 3V--4V, and in the using needs more LED in series or parallel. This produces a problem how to pair the LED load and the LED driver in current and voltage, if the LED load and the LED driver in current and voltage pair correctly, then LED load can work in good .condition.
出处
《电源世界》
2012年第11期21-27,共7页
The World of Power Supply
