其实要做一个高可靠的LED开关电源并不难,只要遵循以下几点: 1.采用高质量元器件。其实有点常识的人都知道,为什么有的元器件便宜,有的就贵,其差别就在于可靠性,所以千万不要为了追求廉价而牺牲可靠性,毁了自己公司的名声。 2.选用器件参数时要留有余地,比如耐压,你不能够假定市电电压就是220V,一般我们都要求至少应当考虑电压有可能高达265V,甚至更高。所以任何工程设计都要留有余地。3.电路设计一定要采用保护器件,没有保护器件的电路就等于你家里的门没有锁一样。4.好一点的LED开关电源电路板还应该涂上三防漆,所谓三防漆就是防潮、防盐雾、防霉,再加上防尘、防漏电,更好的还能防水(IP67)。这样电路板的长寿命就更能确保了。5.LED开关电源外壳一般采用铝材以提高散热·能力,但在密闭状态下,铝壳内空气的导热还是不够,如果散热不够会使电源内部结温太高,令电子元器件损伤,选用加厚铝材和滚珠高转速风扇;双重散热,散热效果好,散热更快,增加稳定性提高工作效率。做到以上几点,LED开关电源的寿命也可以高达几万小时,使用劣质电源,质量差的电源,可能会烧坏发光字和灯珠的概率大百分之八十五!使用正规厂家生产的LED开关电源,更有保障!PARent;">ABSolute; top: 0px; border: 0px; display: none !important;" sandbox="allow-forms allow-pointer-lock allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C8%3A32768%2C9%3A32776%2C10%3A32%2C11%3A32%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32%2C40%3A32&guci=2.2.0.0.2.2.0.0&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=0&pra=5&wgl=1&dt=1591702480196&bpp=11&bdt=172&idt=30&shv=r20200602&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3Df9d84cc41d95297e%3AT%3D1586583675%3AS%3DALNI_MblBFPqcbA5tNV4a3NOX4_5ZGj1bw&crv=1&nras=1&correlator=4781916063001&frm=23&ife=1&pv=2&ga_vid=838701552.1591702480&ga_sid=1591702480&ga_hid=1083675866&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&u_tz=480&u_his=13&u_java=0&u_h=900&u_w=1440&u_ah=860&u_aw=1440&u_cd=24&u_nplug=11&u_nmime=21&adx=-12245933&ady=-12245933&biw=1382&bih=732&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=42530452%2C42530454&oid=3&pvsid=2758199260571208&pem=228&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php&rx=0&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C1440%2C0%2C1440%2C860%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8220&bc=31&ifi=0&uci=0.29s0lsjw6rmm&fsb=1&dtd=41" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.29s0lsjw6rmm" data-load-complete="true"> |