為了保障(zhang)適配器(qi)的工作安全，電源適配器廠家需要在電路設計上實現最優化效果，并保障線路系統能夠長時間高效安全運轉。因此，壓敏電阻器作為一種能夠對電路實現電壓抑制保護的元件，便在日常設計過程中得到了充分的運用。

對電(dian)(dian)(dian)源適配(pei)器(qi)(qi)廠(chang)家這(zhe)種(zhong)專(zhuan)門從事(shi)電(dian)(dian)(dian)源設計生產的(de)(de)企業來說，壓敏(min)電(dian)(dian)(dian)阻器(qi)(qi)是一(yi)個比較熟悉的(de)(de)名(ming)詞了。這(zhe)款電(dian)(dian)(dian)阻器(qi)(qi)是工(gong)作中比較常(chang)用(yong)(yong)的(de)(de)一(yi)種(zhong)電(dian)(dian)(dian)子元(yuan)(yuan)器(qi)(qi)件，它具有(you)瞬態(tai)電(dian)(dian)(dian)壓抑(yi)制功能，在(zai)設計中一(yi)般會(hui)被(bei)用(yong)(yong)于適配(pei)器(qi)(qi)的(de)(de)電(dian)(dian)(dian)路(lu)浪涌(yong)和(he)瞬變防(fang)護(hu)電(dian)(dian)(dian)路(lu)方(fang)面。在(zai)正常(chang)工(gong)作的(de)(de)情(qing)況(kuang)下，壓敏(min)電(dian)(dian)(dian)阻器(qi)(qi)能夠對集成電(dian)(dian)(dian)路(lu)等重要元(yuan)(yuan)件以及(ji)其他電(dian)(dian)(dian)路(lu)和(he)設備進(jin)行(xing)保護(hu)，防(fang)止因靜電(dian)(dian)(dian)放(fang)電(dian)(dian)(dian)、浪涌(yong)及(ji)其他瞬態(tai)電(dian)(dian)(dian)流-如夏(xia)季雷(lei)擊(ji)、雷(lei)暴等，而造成對它(ta)們(men)的損壞。

在適(shi)配器(qi)(qi)(qi)(qi)的(de)電(dian)(dian)(dian)路(lu)(lu)(lu)設(she)計過程中，一般情況下電(dian)(dian)(dian)源適(shi)配器(qi)(qi)(qi)(qi)生產廠家是可以直接將(jiang)壓(ya)(ya)敏電(dian)(dian)(dian)阻器(qi)(qi)(qi)(qi)并(bing)接于被保(bao)護(hu)的(de)電(dian)(dian)(dian)路(lu)(lu)(lu)上的(de)。在完成(cheng)并(bing)接后，當電(dian)(dian)(dian)路(lu)(lu)(lu)系統(tong)的(de)電(dian)(dian)(dian)壓(ya)(ya)瞬間高(gao)于限定數(shu)值時，電(dian)(dian)(dian)阻器(qi)(qi)(qi)(qi)阻值將(jiang)會(hui)迅速下降，快速導通大電(dian)(dian)(dian)流(liu)，阻止瞬間過壓(ya)(ya)而起到保(bao)護(hu)作用。當輸入電(dian)(dian)(dian)壓(ya)(ya)低于電(dian)(dian)(dian)阻器(qi)(qi)(qi)(qi)的(de)工(gong)作電(dian)(dian)(dian)壓(ya)(ya)時，壓(ya)(ya)敏電(dian)(dian)(dian)阻器(qi)(qi)(qi)(qi)阻值極高(gao)，近乎(hu)開路(lu)(lu)(lu)，所(suo)以不會(hui)影響器(qi)(qi)(qi)(qi)件或電(dian)(dian)(dian)氣設(she)備的(de)正常工(gong)作。

接入了壓(ya)(ya)敏電(dian)(dian)阻(zu)器的(de)(de)電(dian)(dian)源適(shi)配器，其工作過(guo)程中(zhong)所產(chan)生的(de)(de)火華電(dian)(dian)路(lu)和沖(chong)(chong)擊電(dian)(dian)流將會被有(you)效(xiao)的(de)(de)抵消。在供電(dian)(dian)網絡(luo)疊加有(you)過(guo)電(dian)(dian)壓(ya)(ya)脈(mo)沖(chong)(chong)時，接壓(ya)(ya)敏電(dian)(dian)阻(zu)后，過(guo)電(dian)(dian)壓(ya)(ya)峰值(zhi)波形(xing)削平，限制(zhi)在一定的(de)(de)幅度內(nei)(nei)。在供電(dian)(dian)網絡(luo)疊加有(you)過(guo)電(dian)(dian)壓(ya)(ya)脈(mo)沖(chong)(chong)時，接壓(ya)(ya)敏電(dian)(dian)阻(zu)后，過(guo)電(dian)(dian)壓(ya)(ya)峰值(zhi)波形(xing)削平，限制(zhi)在一定的(de)(de)幅度內(nei)(nei)。在開啟或關閉(bi)帶有(you)感性、容性的(de)(de)負載電(dian)(dian)路(lu)時，直流波形(xing)出現開關尖脈(mo)沖(chong)(chong)，壓(ya)(ya)敏電(dian)(dian)阻(zu)在電(dian)(dian)路(lu)中(zhong)能吸收這種反電(dian)(dian)功勢，從而有(you)效(xiao)的(de)(de)保護開關電(dian)(dian)路(lu)不受(shou)損害。

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