電dian源yuan適shi配pei器qi出chu現xian噪zao聲sheng
，一yi個ge比bi較jiao大da的de原yuan因yin就jiu在zai於yu多duo個ge不bu同tong的de模mo塊kuai電dian源yuan之zhi間jian產chan生sheng電dian磁ci幹gan擾rao。若ruo兩liang個ge模mo塊kuai在zai電dian路lu板ban上shang比bi較jiao接jie近jin
，加jia上shang模mo塊kuai電dian源yuan本ben身shen是shi不bu屏ping蔽bi的de，輸shu出chu端duan也ye沒mei有you采cai用yong低di阻zu抗kang的de電dian容rong
，則ze可ke能neng因yin為wei相xiang互hu之zhi間jian的de幹gan擾rao使shi輸shu出chu噪zao聲sheng電dian壓ya增zeng加jia。為wei避bi免mian這zhe種zhong相xiang互hu幹gan擾rao
，工gong程cheng師shi可ke采cai用yong屏ping蔽bi措cuo施shi，或huo將jiang它ta們men的de安an裝zhuang位wei置zhi適shi當dang遠yuan離li
，以yi減jian小xiao相xiang互hu之zhi間jian的de影ying響xiang。

 

 

zaidianyuanshipeiqichanshengzaoshengshi
，gongchengshikeyixuanzezaikaiguandianyuanhuozhemokuaidianyuanshuchuduanzaijiayigedianyachaxianxingwenyadianlu

，zheyangzuokeyidafududijiangdishuchuzaosheng，yimanzuduizaoshengyoutebieyaoqiudedianluxuyao，zaizengjialeyijidiyachaxianxingwenyadianluhou
，qishuchuzaoshengzaijingguojiancehoukedaweifuji。youyudiyachaxianxingwenyaqideyacha（輸入與輸出電壓的差值）僅為幾百毫伏，則在開關電源的輸出略高於低壓差線性穩壓器幾百毫伏就可以輸出標準電壓了，並且其損耗也不大。

 

 

如(ru)果(guo)想(xiang)要(yao)從(cong)根(gen)源(yuan)上(shang)防(fang)止(zhi)電(dian)源(yuan)適(shi)配(pei)器(qi)產(chan)生(sheng)噪(zao)聲(sheng)，工(gong)程(cheng)師(shi)可(ke)以(yi)選(xuan)擇(ze)使(shi)用(yong)金(jin)屬(shu)外(wai)殼(ke)作(zuo)為(wei)開(kai)關(guan)電(dian)源(yuan)的(de)屏(ping)蔽(bi)層(ceng)。金(jin)屬(shu)對(dui)噪(zao)聲(sheng)電(dian)磁(ci)波(bo)有(you)較(jiao)好(hao)的(de)隔(ge)離(li)作(zuo)用(yong)，可(ke)以(yi)有(you)效(xiao)的(de)減(jian)小(xiao)開(kai)關(guan)電(dian)源(yuan)對(dui)外(wai)界(jie)輻(fu)射(she)電(dian)磁(ci)場(chang)的(de)敏(min)感(gan)度(du)。

 

chuleshangmiantidaodesanzhongfangfazhiwai，gongchengshizaikaiguandianyuanshipeiqideshuruduanzengjiayigedianyuanlvboqiyeshiyigenengfangzhishuchubowenchanshengdehaofangfa，zheyangzuokeyiyouxiaodejianshaocongdianyuanxianyinrudechuandaomingandu
，tongshiduijianxiaokaiguandianyuanyinwaijiedianciganraoduishuchuduandeyingxiangyeshiyouyidinghaochude。