Seven Experiences of LED Explosion-proof Lamp Driving Power

Seven experiences of LED explosion-proof lamp driving power supply The current LED lamp failure mainly lies in the power supply, so the main thing is to solve the power supply problem. Due to the lack of mandatory unified standards for LED power supplies, the power supplies on the market are independent, single-channel, multi-channel, and different in size, which are difficult to replace. With the emergence of ultra-high-power LED street lights and LED tunnel lights on the market, frequent LED driver power failures, and the use of built-in LED street lamp driver power supplies, often make it difficult to maintain the LED lamp power supply. In addition, some manufacturers lack after-sales maintenance services. Owners’ complaints were filled, and the public’s misunderstanding of LED lights was caused by the media’s exaggerated publicity, which affected the reputation of the LED industry. Seven experiences of lighting factory lighting LED explosion-proof lamp driving power supply 　　, abandon more than one output, develop single or two output, abandon high current and super current, and develop small current.　　 The more the number of output channels, the more complicated it is. The current interference between different outlets is costly to solve. If it is not solved, the failure rate is higher. In addition, the greater the number of output channels, the greater the total output current, and current is the main cause of heat generation. Voltage itself does not directly cause heat generation. Simply put, the heat generation is proportional to the square of the current, which means that the current increases to the original value. If it is doubled, the calorific value will be doubled, the current will be doubled, and the calorific value will be doubled. In summary, the power failure rate of LED lights with single or dual output will be much reduced.　　. Intelligent control is one of the advantages of LED lamps, and power supply is the key to intelligent control. Intelligent control in LED street lamp and LED tunnel lamp lighting application conditions *mature effect* is obvious, intelligent control can achieve stepless control of lamp power in different time periods and according to road traffic density, which not only meets application requirements, but also achieves huge energy saving The effect can save a lot of money for the highway supervisory unit. The application of tunnel lighting can not only save energy, but also automatically adjust the brightness of tunnel entrances and exits according to the brightness situation outside the tunnel, providing drivers with a visual transition stage to ensure driving safety.　　, give up high-power, super-power, choose a relatively high-stability small and medium power power supply.　　Because the greater the power, the greater the heat generation, and the more compact the components inside, which is not conducive to heat dissipation, and the temperature is the culprit of the power failure. Furthermore, low-power power supplies are relatively mature and have advantages in terms of stability and cost. In fact, many high-power power supply solutions have not been verified by time and proved by practice. They are all projects launched in a hurry, and they are all experimental products, so the failures are endless. In contrast, because of the earlier development of small and medium power power supplies, the technical solutions are much more mature.　　, heat dissipation and protection are the main external factors of power failure.　　 Not only the power supply itself will generate heat, but the lamps will also generate heat. How to dissipate these two heat sources reasonably is a problem that the lamp design engineer must consider. It is necessary to prevent excessive heat concentration, forming a heat island effect, and affecting the life of the power supply. Using a separate power supply solution is a good choice.　　, the feasibility of maintenance.　　 The problem of power failure cannot be completely avoided. Chengdu Chaoyue Optoelectronics puts forward the principle of easy maintenance. Only when the replacement of the power supply is as simple as the replacement of the light source of conventional lighting, can the user be happy, even if the power supply is broken, the mood will not be too bad, and the mood of the user determines the LED lamp manufacturer’s fate.　　, protection performance. Protection is also very important. The penetration of moisture may cause a short circuit of the power supply. The sand and dust on the shell will affect the heat dissipation of the power supply. Exposure to the sun will easily cause high temperature and aging of wires and other components. From the experience in actual use, rotation The failure rate of wiring plugs is relatively high, most of which are caused by water leakage.　　, modular design. Modular design has become a trend nowadays. It is necessary to find a way in the integration of module power supply. If the power supply can be plugged and unplugged to solve the maintenance problem, it will definitely be welcomed by users. At the same time, it is necessary to establish interface standardization so that The LED lamp power supply can be universal.