LED Lamp Bead Application Notice

LED lamp beads have a unique advantage, but LED lamp beads are a vulnerable semiconductor product, so we must be careful when we use LED lamp bead products. Please attach great importance to. (1) Power supply should be used to supply DC power supply. Some manufacturers of manufacturers are used in order to reduce product costs to use the "resistance to volume" method to power LED lamp products, which will directly affect the life of LED products. The use of special switching power supply (preferably constant current source) power supply to LED products will not affect the service life of the product, but the product cost is relatively high. (2) A certain anti -static measures must be adopted in the process of processing and production of anti -static measures. If possible, you can install anti -static ion fans, and at the same time, it is necessary to ensure the humidity of the workshop at about 65%, so as not to be too dry to generate static electricity, especially green LEDs are relatively easy to be damaged by static electricity damage. In addition, different quality -grade LED anti -static capabilities are also different. LED anti -static capabilities with high quality grade should be stronger. There may be a lot of friends who do not know the static electricity very well. I will introduce the knowledge of static electricity in detail here: the essence of static electricity is the surplus charge. Charge is the physical quantity of all the essence of static electricity. English is called ESD. Related amounts related to potential, electric field, current, etc. are all physical quantities caused by the existence of charge or the movement of the charge. Many electrostatic problems are caused by people without ESD consciousness. Even now, many people suspect that ESD will cause damage to electronic products. This is because most ESD damage occurs below the human feeling, because the human body's perceived voltage of static discharge is about 3KV, and many electronic components will be damaged when they are hundreds of volts or even dozens of volts. Usually, when the electronic devices are damaged by ESD There is no obvious boundary, and the component is installed on the PCB before detection. As a result, there are many problems, and the analysis is quite difficult. Especially for potential damage, it is difficult to measure the performance of its performance even with precision instruments, so both electronic engineers and designers have suspected ESD. In recent years, the experiment has confirmed that this potential damage will be Reliability decreases significantly. (3) The temperature of the LED should pay attention to the increase in temperature will make the LED internal resistance becoming small. After the environmental temperature of the outside world increases, the LED light source internal resistance will be reduced. After exceeding its rated working current, it will affect the service life of LED products. It will be seriously "burned" by LED light sources. Therefore, it is best to use the constant current source to ensure that the working current of the LED is not affected by the external temperature. LED temperature is also the most important factor affecting the life of LED. Please attract attention. (4) The sealing of LED products regardless of what LED products are, as long as they are applied to outdoors, they are facing waterproof and moisture -proof seals. If they are not handled well, it will directly affect the service life of LED products. Now there are a small number of manufacturers with high product quality requirements to seal LED lamp beads with traditional epoxy resins. This method is more troublesome to operate. It is not suitable for LED products with large volume. It will increase the weight of the product. (5) The current of the LED lamp beads cannot exceed the IF current of the IF current of LED will make LED lamp beads quickly decrease. If it exceeds it, it will immediately burn the LED lamp beads. (6) LED folding angle must pay attention to the LED lamp beads when the corner or folding angle, please do not be too close to the colloid. Keep a distance of more than 2mm from the colloid. The number of folds cannot be more than three times, the corner is bent to 90 , and then the original position is once. (7) The welding temperature of the welding temperature is about 260 C, the time is controlled within 5S, and the welding point is above 2.5mm from the bottom of the colloid. 310S stainless steel pipe personal resume template 304 stainless steel pipe Tibetan scriptures