Views:0 Author:Site Editor Publish Time: 2018-08-22 Origin:Site
LED lamps in the use of the process, it is inevitable that there will be damage, and the cause of LED lamps damaged a variety of reasons.
Electrostatic discharge is a kind of LED luminaire caused by the situation, this article will introduce to you the impact of electrostatic discharge on led luminaire damage, interested friends come to see it. Electrostatic discharge (ESD) damage is the most common transient overvoltage hazard in the manufacture, transportation and application of highly integrated semiconductor devices at present, while the LED lighting system must meet the IEC61000-4-2 standard "human electrostatic discharge mode" 8kV contact discharge,
To prevent the system in electrostatic discharge may cause the overcurrent impact failure. LED PN Junction Array performance will be reduced or damaged.
ESD event discharge path caused by the internal failure of the LED chip, this failure may only be local functional damage, serious words will also lead to permanent damage to the LED. Thermal management and fault overheating protection are a challenge for LED lighting designs where nearly 80% of the energy is converted into heat. Both theory and practice have shown that the performance and life of LEDs are closely related to the operating temperature of the PN junction of LEDs.
When the junction temperature of the LED chip rises by 10 ℃, the luminous flux attenuates the 1%,led life will be reduced by 50%.