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LED lights drive power actual combat experience
- May 16, 2017 -

In recent years, LED lamp packaging technology and the continuous development of thermal technology, LED lamp stability has reached a better level, the occurrence of light failure and color drift is mainly cottage manufacturers of products, the main reason is the cooling design unreasonable. Relatively speaking, LED lights drive power problems to be more serious, is leading to dead lights or flashing the main reason, that is, LED light drive power has become the quality of LED light board, according to the barrel theory, LED light drive power Life is the life of LED lights.

Conventional lighting street lamp is separate from the power supply, usually failure is the lamp - high pressure sodium lamp, high pressure sodium lamp national standard provides a one-year warranty, the street management unit will store a certain amount of sodium lamp, high pressure sodium lamp has mature national standard, Its main parts size, power and other major parameters are unified, with interchangeability.

And the current failure of the main LED lights in the power, so the main thing is to solve the power problem. As the current lack of mandatory power LED unified standard, the market power of their own way, single, multi-channel, different sizes, it is difficult to replace. With the market super high-power LED lights, LED tunnel lights appear, LED drive power failure frequently, coupled with LED street lamp drive power to use built-in design, often led to power failure to maintain led lights, coupled with some manufacturers lack of after-sales maintenance services, so Owners complained, after the media exaggerated publicity caused by the public on the LED lamp misunderstanding, affecting the LED industry reputation.

1, Give up more than 4 road output, the development of single or two output, to give up the high current and large current, the development of small current.

The more the number of output channels more complex, different ways to solve the current interference between the high cost, if not resolved, the higher the failure rate. In addition, the greater the output path, the greater the total output current, and the current is the main reason for the heat, the voltage itself does not directly lead to heat, simply heat and the current square is proportional to, that is, the current increased to the original 2 times, then the heat will increase to the original 4 times the current increased to 3 times the original, heat will increase to 9 times the original. In summary, single or two output LED lamp power failure rate will be reduced a lot.

2, Intelligent control is one of the advantages of LED lamps, and power is the key to intelligent control.

Intelligent control in LED lights and LED tunnel lighting applications on the most mature conditions of the most obvious effect, intelligent control in different time periods, according to the road traffic density to achieve the lamp power stepless control, both to meet the application requirements, but also to achieve a huge energy Effect, can save a lot of money for the highway competent units. The application of tunnel lighting can not only save energy, but also can automatically adjust the tunnel entrance and exit brightness according to the brightness outside the tunnel, and provide the driver with a visual excessive stage to ensure the safety of driving.

3, To give high-power, high power, choose a higher stability of the small and medium power supply.

Because the greater the power, the greater the heat, which is more compact components, is not conducive to heat, and temperature is the culprit of power failure. Moreover, the development of low-power power supply is relatively mature, stability and cost advantages. In fact, many high-power power solutions are not verified and proven by practice, are hastily launched the project, are experimental products, so the fault is endless. In contrast to the development of small and medium power supply earlier, more mature technical solutions.

4, Heat and protection is the main external factors of power failure.

Not only the power itself will be hot, the lamps will be hot, how to distribute these two heat is a lighting design engineers must consider the issue, we must prevent the excessive concentration of heat, the formation of heat island effect, affecting power life. The use of a separate power supply solution is a good choice.

5, The feasibility of maintenance.

Power failure problem can not be completely avoided, Chengdu Chaoyue Optoelectronics put forward the principle of ease of maintenance. Only the replacement of the power to do with the conventional lighting of the light source replacement so simple, in order to be happy with the user, even if the power is broken, the mood will not be too bad, and the user's mood determines the LED lights manufacturers fate.

6, Protective performance.

Protection is also very important, the penetration of water may cause the power short circuit, the dust on the shell will affect the power supply heat, exposure is likely to cause high temperature and the aging of wires and other components, from the actual experience, Wiring plug failure rate is high, most of the water leakage caused by failure.

7, Modular design.

Modular design has become the trend of today, the module power supply must be a way to think of integration, if the power can be used to solve the maintenance problems plug the way, will be welcomed by users, but also need to establish interface standardization, so that different manufacturers of LED Lamp power can be universal.

Summary: LED lights power supply is best to use split design, while focusing on power supply reliability and life, even if the increase in the cost, only standing on the customer's point of view to design products, enterprises can get long-term development.

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