As
solar street light is widely used in all walks of life, the application of LED power supply is becoming more and more extensive. More and more people want to know how to identify the quality of LED power supply. The following editor will briefly introduce: 1. Driver IC driver The core of the power supply is the IC, and the quality of the IC directly affects the entire power supply. The IC on the LED power supply refuses to be polished, so that the lighting manufacturer can understand the IC solution and calculate the cost of the drive, so as to purchase power supply products at a reasonable price. Second, the transformer control chip can be regarded as the brain center of the power supply, and it is the transformer that determines the power and temperature resistance. The transformer is responsible for completing the 'AC - magnetic energy - DCThe core of the transformer is the magnetic core and the wire wrap. 3. Electrolytic capacitors and chip ceramic capacitors The quality and life requirements of input electrolytic capacitors may be known to everyone, and everyone also attaches great importance to them. However, people tend to ignore the quality requirements of the output capacitor. In fact, the life of the output capacitor has a great impact on the life of the power supply. The output terminal has a switching frequency of up to 60,000 times per second, which causes the parasitic resistance of the capacitor to heat up, producing substances similar to scale, and finally the electrolyte heats up and explodes. Therefore, this tiny chip resistor and poor options will also lead to a price difference in cost and greatly shorten the life of the power supply. 4. Distinguishing the advantages and disadvantages of circuit design and welding process design of power supply products: Aside from the professional perspective, it can be distinguished through some intuitive methods, such as neat, generous, orderly layout of components, and clean and straight welding. An engineer does not make a messy design. As for flying lines and manual addition of components, it is a serious lack of technical strength. Soldering process: manual soldering and wave soldering process, as we all know, the quality of the wave soldering process of mechanized production is definitely better than that of manual soldering. Identification method: whether there is red glue on the back. At present, the flashing phenomenon of lamps in use for a period of time is basically caused by the virtual welding of the power supply or lamp beads. The product's virtual welding detection is extremely difficult to pass the aging test, so it is necessary to rely on AOI to detect the patch quality of the power supply. 5. Batch testing of power supply products for aging racks and high temperature aging room materials and the best power supply products controlled by the production process still need to be tested for aging. Because the incoming inspection of electronic components and transformers is difficult to control. Only through the aging of the entire batch of power supplies and the high-temperature sampling inspection of the high-temperature room, the quality stability of this batch of power supplies and whether the materials have potential safety hazards can be detected. The above 5 points are the factors to distinguish the quality of LED solar street light power supply. I hope it will be helpful for everyone to buy LED solar street light.
Guangzhou Litel Technology Co.,Ltd. has created a professional team which contained with a numbers of engineers and technology experts.
Guangzhou Litel Technology Co.,Ltd. intends to make enough profit to generate a fair return for our investors and to finance continued growth and development in solar lights.
This can benefit Litel Technology by helping it target those investors and consumers who are specifically interested in its type of product or service.
Guangzhou Litel Technology Co.,Ltd. clearly knows that people often launch something and love it and want to go on and on about it, but that's too normal and mediocre. There are lots of other competing products, so we need to keep it very, very unique.
