反射型自镇流LED灯认证要点及电源方案选择

和LED球泡灯不一样,专业照明场合中,对LED PAR灯的配光有较高的期望,以及LED PAR灯替换传统卤素灯也有较高的替换门槛指标。在设计阶段,必须综合考虑LED PAR灯的光、电、热三方面组件之间的关联,正确理解并执行认证标准规范及特定客户对LED PAR灯的技术要求,这样才可能让设计出的LED PAR灯兼顾配光效果、使用寿命和最终的产品认证。本文介绍了LED PAR灯各组成元件及相互之间的关联,基于对安全标准、电磁兼容标准和能效标准的解读,探讨了LED PAR灯驱动电源可行的实现方案。

Authentication Keys and for Self-ballasted Power Supply Scheme Choice LED Reflector Lamps

Unlike LED bulb lamps, good light distribution effect is expected and higher retrofit precondition is required for LED PAR lamps replacing the traditional halogen lamps in professional lighting application. During development of LED PAR lamps, light, electricity and heat dissipation should be considered as an integral, and certification standards and technology requirement by special client should be studied thoroughly and fulfilled, in order to design the LED PAR lamps with good light output, sufficient longevity, and granted certification. In this paper, LED PAR lamps＇ component element and mutual dependence is described, and the design scheme for the power supplies is studied, based on the interpretation of the safety EMC and energy efficiency standards.