Pamiętnik Lily Evans- forum.

taoiu8pqda · Wysłany: Nie 21:52, 16 Mar 2014 Temat postu:

especially the LED street lamp is mainly used for outdoor environment, to years of wind and rain, thunder and lightning withstand the harsh environment; in the south part of China, may the outside temperature up to 40 ℃ ~50 ℃; while in the cold north, may the temperature outside part of the time down to -20 ℃ ~-30 ℃. So the design and manufacturing technology of LED street lamp power supply more attention should be paid to the quality problem.
due to the LED drive and LED chip and module coordination system, also must consider the optical structure design of LED module, so the demand for drive power LED lighting applications are different. But, overall, LED lighting drive power requirement for nothing more than the high efficiency, high reliability, and the compatibility of light and non light application etc.. Among them, the so-called high reliability including adaptation and self protection performance matches with the LED light source of long-lived, wide power grid, and wide operating temperature adaptability (-40 degrees to 65 degrees, and even -55 degrees to 85 degrees).
street lamp fault can be attributed to the failure of power supply,[link widoczny dla zalogowanych], street facing the special design challenges, challenges that are not present in most of the traditional power supply applications. The harsh conditions of high ambient temperature (resulting in a circuit board temperature over 100 ℃),[link widoczny dla zalogowanych], and the power supply and load (LED) closely adjacent,[link widoczny dla zalogowanych], the adapter technology standard cannot work. In addition, the efficient methods to deal with the high temperature electrical converter used in the street lamp, applications are only partially effective." Andrew Smith said: "long life, high temperature power required by the design technology and special topological structure,[link widoczny dla zalogowanych], in order to make the power supply work in harsh environment. Street lamp manufacturers often can not accurately determine the suitability of the power supply,[link widoczny dla zalogowanych], technology selection error could eventually lead to a system
decreased with the increasing and cost of LED lighting effects,[link widoczny dla zalogowanych], LED lighting has become the perfect incandescent lamp and fluorescent lamp replacement. However, because of the LED lighting system is very complex; across the optical, electrical and thermal fields, therefore,[link widoczny dla zalogowanych], in the large-scale application, often appear power life does not match and reliability issues,[link widoczny dla zalogowanych], leading to LED advantage can not play. In short,[link widoczny dla zalogowanych], LED lighting (especially LED Street) the real bottleneck for large-scale applications is driving power supply.
Power Integrations (PI) LED product marketing manager Andrew Smith said: "as the compact fluorescent lamps (CFL) early because of the initial low quality and suffered a drop in demand,[link widoczny dla zalogowanych], the reliability of LED street lamp lighting has also been questioned. Premature failure of a lot of forcing around when the Bureau and other customers to reconsider the technical method of LED. To solve the quality problems, LED outdoor lighting the main advantage will be to promote the development of the market."
&quot,[link widoczny dla zalogowanych];Most
Keywords LED LED LED lighting driver &nbsp,[link widoczny dla zalogowanych]; LED street lamp;
相关的主题文章：

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]

More than half the time, tasks half, from the current situation, this year's affordable housing project schedule well. And even years, but also to protect the key stage of housing construction. To complete the 11 at the end of 10000000 sets of all the work task, is also faced with many challenges.