LED to ease way of embrittlement

We often will appear this kind of problem when applying the led, led welding on products in the beginning is normal operation, but lit for a period of time in the future will present the dim light, flashing, the phenomenon such as fault, have bright, brings to the traffic lights manufacturers severe

 we often will appear this kind of problem when applying the led, led welding on products in the beginning is normal operation, but lit for a period of time in the future will present the dim light, flashing, the phenomenon such as fault, have bright, bring serious harm to traffic signal lamp manufacturers. The causes of this phenomenon is roughly: 1. Use products, welding process has a problem, such as welding temperature welding time is too long, don't do a good antistatic, etc, these problems above 95% is made by the encapsulation process. 2. The LED itself quality or production process. LED aging method includes constant current and constant voltage aging aging. Constant current source' Constant current source, ac constant current source, dc constant current source, current generator, big current generator, also called a current source and stable current source, is a kind of wide spectrum, high precision ac current, has quick response speed, high precision of constant current, the long-term stability can work, suitable for all kinds of the nature of the load, Impedance, sensibility, capacitive) Wait for an advantage. 】 Refers to the current stable at all times. Have the problem of frequency is not constant current. It is communication or pulsating current. Communication or pulsating current source can be designed into RMS stable, but the power supply cannot be called 'constant current source'. Constant current aging is the most fit LED current job characteristics, is the most scientific LED aging; Over current impact aging is traffic lights factory latest chosen an aging method, through using the frequency adjustable, current adjustable constant current source for such aging, in order to judge the quality of the LED in a short time expected become old, yea, and can pick out the aging can't pick out the dangerous LED many practices. Aging is an important guarantee of electronic product reliability, is the LED street lamp 【 LED street lamp is made of street lamp, LED lamps and lanterns with high efficiency, safety, energy saving, environmental protection, long service life, fast response speed, high color rendering index of unique advantages, the city lighting energy saving is of great significance. 】 Manufacturer to produce products at the end of the indispensable step. LED products after aging can improve efficiency, and help to late use efficiency of the safe. LED aging test in product quality control is a very important link, but in many time is often neglected, unable to properly aging effectively. The above content from the electronic police rod manufacturer of new energy, reproduced please indicate.