LED电视普通照明灯具的电磁干扰问题研究

Study of Electromagnetism Distraction of LED Lamps and Lanterns for Entertainment

LED电视普通照明灯具通常采用脉冲宽度调制(PWM)技术实现LED的恒流供电和调光功能,因此会产生一定程度的无线电骚扰和谐波。本文通过对部分LED灯具的测试和研究,掌握LED灯具在使用中可能产生电磁干扰的相关数据,并提出相应的解决措施。

For the LED lamps in entertainment industry,the technology of PWM is usually for realization of the constant current of power supply and lighting dimmer,which often causes wireless electromagnetism distraction and harmonic wave. In this paper,relative data about electromagnetism distraction of LED lamps in use are obtained by means of testing some LED lamps,and corresponding solution are worked out as well.