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有人了解大功率led开关电源怎样设计吗

有人了解大功率led开关电源怎样设计吗

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半度岁月 06-29 10:00

大功率led开关电源的设计：一、产品原理概况产品是采用脉宽调制(PWM)技术控制的新型开关电源。输入的交流电压经过整流滤波产生300V左右的直流电压，在专用芯片的控制下，电路中的变压器、开关器件等产生高频方波电压，经过大功率整流管后输出高精度、高稳定的直流电压。二、产品特点1、体积小，重量轻。2、工作电压范围宽：输入电压可在170-264V正常工作。3、安全，可靠性高(执行标准：GB4943)。4、卓越的工作性能：大功率的开关电源有5-10秒的延时检测电路设计，能很好杜绝开关电源通电瞬间输出高电压，大电流从而能保护负载(特别是LED发光源，能最大限度的减少输出电压突变所造成的光衰)。5、保护功能：短路、过流、过热保护。6、安装方便：本产品设计成防雨(户外)和不防水(户内)两种。防雨电源采用强度高、防锈的金属外壳悬挂式结构设计，可随地悬挂安装，减少输入输出连接电线。7、当负载过大时，电源会发生保护，出现间歇通断的异常情况，此时应减少负载。三、产品使用注意事项1、输入电压应接在规定的工作电压范围内(输入电压220VAC)。2、严禁在高温环境下使用，电源应有良好的散热空间与环境。3、严禁将电源安装在易燃物品上(如木制品、易燃塑料等)，要远离油站或禁止烟火的地方。四、安装方法1、严格按照电源输出端子所指示的接线位置接线，接线要牢固，确定输出线不要接反(输入“220VAC”接市电，输出“+”接负载正极，输出“-”接负载负极)。2、在通电前，用万用表检查线路电压是否与工作电压相符(工作电压220VAC)确认后才可以合闸。3、电源要牢固垂直悬挂安装(可将电源垂直悬挂在接线方便的地方，面盖要盖好，以防进水)。4、安装接线图:五、使用说明1、正常使用条件下，产品按出厂日期标志保修一年，在保修期内产品发生故障，经本公司检测属于质量问题，将免费保修。2、以下情况，不在保修范围内(1)不按说明书要求使用而损坏的；(2)用户自行拆动电源内部元器件而损坏的；(3)盒内进水的；(4)产品外形严重损坏或变形的；(5)产品机身日期被擦除或涂改的；(6)接线端子烧焦的；

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