LED drive power of the low life expectancy is an important reason is the lack of the life of the drive power required for aluminum electrolytic capacitors, mainly due to working long hours and led lights inside the ambient temperature is high, resulting in aluminum electrolytic capacitors quickly consumptiondry, life is much shorter, generally only work about 5,000 hours. The LED light source life is 50,000 hours, the working life of aluminum electrolytic capacitors has become a life short rib led drive power of LED intelligent lighting system.
Now some vendors in order to solve this problem, the invention of aluminum electrolytic capacitors, LED drive power program. But not all of the LED drive power suppliers are in favor of this approach. Chen Rong said: “At present, the LED drive power production, there is no a is a non-electrolytic capacitor driven program, because without it, then a lot of test criteria to pass EMI testing and flicker-free test.”
While the aluminum electrolytic capacitors, LED driver power of led high bay lighting system is usually more of these tests, if you replaced the film capacitors and ceramic capacitors or tantalum capacitors, the situation how? Film capacitors to achieve the same capacitance (typically 100-220uF), the volume will be enormous, and the cost is too high, the general capacity of the ceramic capacitor is too small, such as multiple ceramic capacitors to achieve such a large capacity, footprint and cost too much, and tantalum capacitors to have such a large-capacity.
Many suppliers claim that the non-electrolytic capacitors LED intelligent lighting system program, it may just get rid of the aluminum electrolytic capacitor of the AC input, constant current output of aluminum electrolytic capacitors should be difficult to remove or replace.