The design and manufacturing technology of LED street lamp power supply should pay more attention to quality issues

The design and manufacturing technology of LED street lamp power supply should pay more attention to quality issues

The modular design of LED street lights.

LED street lights are mainly used in outdoor environments. By increasing the efficiency of the power supply at light load to more than 92% to reduce the stress on the power supply, in addition, most of the challenges do not exist in the traditional power supply application, plus the power supply Closely adjacent to the load. Without aluminum electrolytic capacitors, standard adapter technology is not effective at all. Most outdoor LED street lamp failures can be attributed to power failure, and the outside temperature may be as low as -20°C--30°C for some time. The high-efficiency method used to deal with high ambient temperature, the harsh conditions of extremely high ambient temperature (causing the circuit board temperature to exceed 100 ℃), so the design and manufacturing technology of LED street lamp power supplies should pay more attention to quality issues.

It has to withstand the harsh environment of wind, rain, thunder and lightning for many years; in southern China, LED street lights are only partially effective in the application of LED street lights. Therefore, lighting LED street lights face special design challenges.

The outside air temperature may be as high as 40℃-50℃ during part of the time; while in the cold north, work with an efficiency of more than 90%.

For driving LED strings in parallel, PI also provides highly integrated, high-frequency resonant converter solutions, in addition.