大功率LED灯具电源驱动的分析与研究

LED灯具的散热和电源驱动一直是制约其应用发展的两大难题，该文通过对大功率LED光源的特性和灯具对驱动电源要求的分析，结合现阶段应用比较成熟的几种LED驱动电源方案的研究，说明了在灯具设计时，除了解决好LED灯具的散热外，不论采用哪种驱动方式，都应该做到真正的恒流驱动控制，这样才能够保证LED灯具持续可靠稳定地工作，从而减少LED光衰，延长灯具的使用寿命。

The Analysis and Study of High-power LED Lamps' Power Supply Driver

The application and development of High-power LED lighting always be restricted by two bigest problems which are heat dissipation and power-driven. In this paper, the characteristics of high power LED light source and the performance requirement of driving power is analyzed, and combined with the study of many present more mature program of the LED drive power, to say that, in the lighting design, besides to solve the heat dissipation of LED lighting, to ensure that, in the lighting design, besides to solve the heat dissipation of LED lighting, to ensure that the true constant-current drive control at any drive mode is necessary, so as to make sure the LED lighting work continuously, reliably and stability, to reduce the decline of LED light source, to extend the lamp＇s life.