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欢乐生肖DIANYUANMOKUAIDEJIAGECHAJU,DIANYUANMOKUAIDUOSHAOQIAN?

电源模块的价格差距,电源模块多少钱?

2019-07-11

DIANYUANMOKUAICHANGYONGYUDIANYAZHUANHUAN,SHIYIZHONGGAIBIANJIAOZHILIUDIANYADEZHUANHUANZHUANGZHI,KEYISHIYIZHONGDIANYAZHUANHUANCHENGLINGYIZHONGWENDINGDEDIANYA。SUIZHEDIANYUANMOKUAICHANGJIAHECHANPINYUELAIYUEDUO,DIANYUANMOKUAIJIAGEBUKEBIMIANDECHENGWEILEYONGHUZAITIAOXUANCHANPINSHIDEYIGEYINGXIANGYINSU。

 

不同电源模块厂家的产品,就算参数相似,其价格也会有所差距。很多人可能会想,同样功率和电压,为什么价格却相差很大。很大因素是因为工艺和采用物料不同,还有开关频率、转换效率、负载调整率、电压调整率、工作温度、EMC性能、可靠性和质保年限等问题。

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DIANYUANMOKUAIDUOSHAOQIANYIGE?BUTONGXINGHAO、GONGLVDEDIANYUANMOKUAIJIAGEDOUSHIBUYIYANGDE,YIBANLAISHUO,GONGLVXIAODE,BIANYIDEZHIXUYAOJIKUAIQIAN,GONGLVDADEZIRANJIUGUIYIDIAN。DIANYUANMOKUAIZHUYAOFENWEISHANGYONG、GONGYE、JUNYONGSANGEDENGJI,TONGCHANGANGONGZUOWENDUFANWEILAIFEN,BUTONGDENGJIZHIJIAN,JIAGEXIANGCHAHENDA。DIANYUANMOKUAIDENGJIYUNEIBUDIANLUSHEJI、YUANQIJIANYOUHENDAGUANXI。

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电源模块裸板通常会比灌封式模块电源要便宜很多,因为少了外壳物料和灌封工艺流程,且少了隔离作用和一些防护功能。由于裸板式有潜在电气危险,所以电源模块很多都是灌封式。灌封式模块电源是一个不好拆解的封闭产品,不像裸板式那样可以直观的观察,用户只能通过产品规格书上的性能和价格去衡量好坏。

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欢乐生肖 DIANYUANMOKUAIDEXINGNENGHEKEKAOXINGYOUYANFASHEJISUOJUEDING,HAODEDIANLUJIEGOU、WULIAOYUANJIAN、ZHIZAOGONGYI、YOUYIXINGNENGZIRANYUCHENGBENGUAGOU。HAIYOUTIJISHIYIGEHENZHONGYAODEYINSU,XIANZHILEHENDAYIBUFENYUANQIJIAN,TIJIYUEXIAO、XINGNENGYUEHAO、KEKAOXINGGAOCHENGBENZIRANGENGGAO。

 

小型化又会产生EMC和散热问题,这些与PCB布局、走线、元器件间的位置等因素相关。因为电源模块体积小了,所以通常要搭配外围元件使用。而内置EMC的,内部元器件多了,及散热性能好、低温升的电源模块价格和体积都会有所差距。

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YIBANZAIXUANXINGSHI,ZUIHAOXIANHECHANGJIAQUEDINGHAOCANSHU,ZAIXUNWENCHANPINJIAGE。RUYOUTESHUYAOQIUDE,XUYAODINGZHIBUTONGCANSHUDE,GENJUNANYICHENGDUQIJIAGEYEHUIYOUSUOBUTONG。YOUXUYAODEHUOBISANJIA,ZHEIYANGXINGJIABIGENGGAO。

 

欢乐生肖 ZAIXUANGOUDIANYUANMOKUAISHI,QIEJIZHIGUANZHUJIAGE,BUSHISHUOJIAQIANDILEJIUKEYI,YINGXUANZEHESHIZISHENDE。ZHONGSUOZHOUZHI,WENDUSHIYINGXIANGDIANYUANMOKUAISHOUMINGDEYIGEZHONGYAOYINSU。RUGUOSHIWENDUGUOGAOHUOGUODI、YOUCHONGJIXINGFUZAI、QIDONGDIANLIUHENDADENGSHIYONGYINGXIANGYINSU,ZUIHAONENGGOULIANXIXIAGAICHANGJIAJISHURENYUANZIXUN。