development up to now there have been a mature chain of enterprise, large-scale manufacturers choose fixed reliable partner to provide accessories material.
To ensure the quality of the products.
If you want to choose assembly is the power to choose how?
Here is to introduce the LED display power how to discern bad, buy should pay attention to those matters.
A, simple way to identify power quality are usually display manufacturers can put forward some requirements for power supply products, but because of too much power supply manufacturers, with many unknown power products, let consumers is difficult to distinguish authenticity.
To this end, the personage inside course of study gives some Suggestions: 1, the appearance process.
A good power supply manufacturer, its working process is very strict, because in this way can we ensure batch consistency of the product.
An irresponsible manufacturers, the production of power its appearance, tin, the arrangement of components uniformity will never good.
2, full load efficiency.
The efficiency of the power supply is one of the most important indicators, high efficiency of power energy conversion rate is high, this not only conforms to the requirements of energy conservation and environmental protection, can real help users to save electricity saving again.
3, constant voltage power supply output voltage ripple.
The size of the ripple has very big effect on the service life of electric equipment, ripple as small as possible.
Fourth, the rise of temperature of the power supply work.
Temperature affect the stability of the power supply and life, the temperature rise of the temperature is lower, the better.
Also see from the aspects of efficiency, average heat efficiency will be small.
2, and the choice of power supply products matters needing attention with the properties of the LED display products, while playing the video or pictures will usually produce instant change of current, it puts forward more strict requirements on the LED power supply.
Usually, in order to ensure the normal order of the display screen, need a certain amount of allowance for power supply products.
The more general sense, surplus reserve, product performance more stable power supply, the longer the life span, however, thereby increasing the cost of power supply products, too much surplus reserve also easy to cause waste.
Currently, the LED display the power of the industry are generally reserved 20% -
30% of the allowance.
So, in addition to the power supply margin reserved indexes, when choosing the power products also need to pay attention to other aspects.
First of all, in order to make the life of the power supply growth, suggest use 30% more power output rated models.
For example, if the system need a 100 w power supply, is recommended choose rated greater than 130 w power output models, and so on can effectively improve the service life of power supply.
Second, the need to consider the power supply working environment temperature, and the presence of additional auxiliary cooling device, in high temperature power supply should be deduction output.
Again, according to the application field to select the function of the power supply, such as protection function: over voltage protection, over temperature protection, over load protection etc.
Application functions: signal function, remote control, telemetry, parallel functions, etc. ;
Special features: power factor correction (
And electricity (
Three, the future development trend of power supply in the future, LED display will be toward the hd, such as energy saving, intelligent direction, power supply products will have more new technological breakthroughs.
All in all, area more and more and more light weight, small volume more and more thin, more and more high performance and intelligent control more and more highlights will be the future trend of the development of LED display power.
0 a LED display can be set on the two clocks?
How to set?
The LED display to buy a small spacing matters needing attention
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