Five-point concept of LED driver power development

About 80% of the faults caused by LED lighting products come from power sources. From the continuous improvement of LED light source product packaging technology and the continuous development of heat dissipation technology , the stability of light source has reached a relatively good level, even if there is that Light decay and color drift, which is mainly caused by the unreasonable heat dissipation design. The situation of direct necrosis has been very small. Relatively speaking, the problem of power supply is much more serious. When a problem occurs, it is usually a direct death or flashing, and the frequency of occurrence is relatively high. The failure of conventional lighting street lamps and the maintenance of the need is the light source sodium lamp. The national standard for sodium lamps stipulates that the warranty period is one year, and the street lamp unit will store a certain amount of sodium lamps. The sodium lamp has a mature national standard, and the main parameters such as the size and power of the main parts are uniform and interchangeable.

The current LED lamp failure is mainly in the power supply, so the main contradiction is to solve the power problem. Due to the lack of mandatory unified standards for LED power supplies, the power supplies on the market are separate, single-channel, multi-channel, and of different sizes, resulting in many problems. With the emergence of super-power LED power supply on the market, more than 4 drive power sources are everywhere, so the faults are frequent, and the cost and shape of the LED street lamp are difficult to design. Many factors overlap, which often causes difficulty in maintaining the LED power supply. Heavy, so the owners' complaints and the media's turmoil caused misunderstanding of LED street lights, affecting the industry's reputation and development.

Five concepts of LED driver power development:

1. Give up high power and super power, and develop medium and small power supplies with high stability, preferably between 30W and 40W, and no more than 50W.

Because the greater the power, the greater the heat, the more compact the components inside, which is not conducive to heat dissipation, and the temperature is the culprit of power failure. Moreover, the low-power power supply is relatively mature in development, and has advantages in terms of stability and cost. In fact, many power companies know that the bigger the power, the harder it is to do, and they are not willing to do high-power. However, due to the pressure of application manufacturers, passive development of high-power power supplies, many programs have not been time-tested and proven, they are rushing. The projects are all experimental products, so the faults are endless. In contrast, small and medium-sized power supplies have matured due to their earlier development.