屏蔽電感應該怎樣選擇呢?今天谷景小編為大家講述關于屏蔽電感的知識,今天講的這款產品知識與之前講到的其它電感不一(yi)樣,希望大家(jia)看了之后能對我們(men)的產(chan)品有更進一(yi)步的了解(jie)。
屏(ping)(ping)蔽(bi)(bi)(bi)電(dian)(dian)(dian)(dian)感(gan)的(de)優(you)勢(shi)分析(xi):它能夠屏(ping)(ping)蔽(bi)(bi)(bi)掉一些電(dian)(dian)(dian)(dian)路中(zhong)電(dian)(dian)(dian)(dian)流(liu)的(de)不穩定性(xing),很好的(de)起到阻隔的(de)作用,屏(ping)(ping)蔽(bi)(bi)(bi)電(dian)(dian)(dian)(dian)感(gan)完整(zheng)的(de)金屬屏(ping)(ping)蔽(bi)(bi)(bi)體(ti)(ti)將(jiang)帶正(zheng)電(dian)(dian)(dian)(dian)導體(ti)(ti)包圍起來(lai),在屏(ping)(ping)蔽(bi)(bi)(bi)體(ti)(ti)的(de)內側(ce)將(jiang)感(gan)應出與(yu)帶電(dian)(dian)(dian)(dian)導體(ti)(ti)等(deng)(deng)量的(de)負(fu)電(dian)(dian)(dian)(dian)荷,外側(ce)出現與(yu)帶電(dian)(dian)(dian)(dian)導體(ti)(ti)等(deng)(deng)量的(de)正(zheng)電(dian)(dian)(dian)(dian)荷,如果將(jiang)金屬屏(ping)(ping)蔽(bi)(bi)(bi)體(ti)(ti)接地(di),則外側(ce)的(de)正(zheng)電(dian)(dian)(dian)(dian)荷將(jiang)流(liu)入大地(di),外側(ce)將(jiang)不會(hui)有電(dian)(dian)(dian)(dian)場存在,即帶正(zheng)電(dian)(dian)(dian)(dian)導體(ti)(ti)的(de)電(dian)(dian)(dian)(dian)場被屏(ping)(ping)蔽(bi)(bi)(bi)在金屬屏(ping)(ping)蔽(bi)(bi)(bi)體(ti)(ti)內。
屏蔽電感在電路中還起到了耦合的作用,屏蔽貼片電感為降低交變電場對敏感電路的耦合干擾電壓,電感可以在干擾源和敏感電路之間設置導電性好的金屬屏蔽體,并將金屬屏蔽體接地。那么我們該如何選擇電感呢?任何一(yi)款(kuan)電(dian)(dian)(dian)感(gan)都(dou)可以用到任何一(yi)款(kuan)電(dian)(dian)(dian)子(zi)產品(pin)上,只要能裝上機板,電(dian)(dian)(dian)感(gan)量一(yi)致,電(dian)(dian)(dian)流電(dian)(dian)(dian)阻等參數符(fu)合(he),就沒有問題。
還有就是考慮(lv)成本的(de)(de)問題,屏蔽(bi)的(de)(de)肯定(ding)要(yao)比非屏蔽(bi)的(de)(de)貴(gui),還有就是體積越(yue)小越(yue)貴(gui),感量越(yue)大越(yue)貴(gui)。比如一(yi)些民用級別的(de)(de)產(chan)(chan)(chan)品,如DC-DC等(deng),都可以(yi)用非屏蔽(bi)的(de)(de)產(chan)(chan)(chan)品。工業級的(de)(de)產(chan)(chan)(chan)品一(yi)般要(yao)求都比較高(gao),還有科研,航天等(deng),都對(dui)電感穩定(ding)性,耐溫等(deng)要(yao)求較高(gao),因此就要(yao)用屏蔽(bi)或者(zhe)壓鑄電感。
谷景電(dian)(dian)(dian)(dian)(dian)子生產(chan)的屏蔽電(dian)(dian)(dian)(dian)(dian)感尺(chi)寸小,可用(yong)做小型(xing)電(dian)(dian)(dian)(dian)(dian)子設備(bei)的電(dian)(dian)(dian)(dian)(dian)源(yuan)扼流線圈,而(er)且是無鉛(qian)產(chan)品,符合RoHS指(zhi)令。廣泛應用(yong)于數碼產(chan)品,掃(sao)描儀(yi),升降(jiang)壓轉換器,磁帶錄像機電(dian)(dian)(dian)(dian)(dian)源(yuan),液(ye)晶電(dian)(dian)(dian)(dian)(dian)視,便攜式(shi)終端設備(bei),筆(bi)記(ji)本電(dian)(dian)(dian)(dian)(dian)腦(nao),網絡通信等。
蘇州谷景電子,專業定制電感,可以針對貼片電感的電感量,電流,品質來進行特殊定制,生產出貼合客戶需求的貼片電感產品。
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