們大家可能不清楚在使用固態繼電器的(de)(de)(de)時候(hou)，是有(you)使(shi)用限(xian)(xian)制的(de)(de)(de)。當然(ran)與機(ji)械(xie)固(gu)態(tai)繼(ji)電(dian)器(qi)(qi)相(xiang)比，固(gu)態(tai)繼(ji)電(dian)器(qi)(qi)的(de)(de)(de)限(xian)(xian)制是很(hen)少的(de)(de)(de)，下面就讓我們來(lai)給大家介(jie)紹一(yi)下使(shi)用固(gu)態(tai)繼(ji)電(dian)器(qi)(qi)的(de)(de)(de)限(xian)(xian)制有(you)哪些，具體內容如下：

因(yin)為(wei)固態(tai)(tai)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)是(shi)基于半導體的(de)(de)(de)，所以(yi)既不(bu)能全(quan)路(lu)(lu)導通(tong)，又不(bu)能全(quan)路(lu)(lu)關(guan)斷。這意味著(zhu)處于“on”狀態(tai)(tai)，有(you)電(dian)(dian)(dian)流時，固態(tai)(tai)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)仍然具有(you)內阻，使(shi)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)發熱。當處于“off”狀態(tai)(tai)，固態(tai)(tai)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)仍然具有(you)少量的(de)(de)(de)泄(xie)漏(lou)電(dian)(dian)(dian)流，通(tong)常(chang)幾毫安(an)(an)。電(dian)(dian)(dian)流泄(xie)漏(lou)可以(yi)用來保持某些負載(zai)不(bu)會(hui)關(guan)斷，特別(bie)是(shi)高(gao)阻抗(kang)時。另外，固態(tai)(tai)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)對于電(dian)(dian)(dian)壓(ya)的(de)(de)(de)瞬變非(fei)常(chang)敏感(gan)(gan)，盡管(guan)Opto22的(de)(de)(de)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)都具有(you)非(fei)常(chang)好(hao)的(de)(de)(de)瞬變保護，但是(shi)如果繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)經受(shou)足(zu)夠次數(shu)的(de)(de)(de)沖(chong)擊時，也會(hui)損壞(huai)或降低性能。這就使(shi)得固態(tai)(tai)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)用于驅(qu)動大電(dian)(dian)(dian)感(gan)(gan)機電(dian)(dian)(dian)負載(zai)時，例(li)如有(you)些螺線管(guan)或電(dian)(dian)(dian)動機時，不(bu)是(shi)特別(bie)理想的(de)(de)(de)。固態(tai)(tai)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)也絕不(bu)能應用于某些條件下，比如安(an)(an)全(quan)電(dian)(dian)(dian)源開(kai)(kai)關(guan)，因(yin)為(wei)即使(shi)在(zai)off狀態(tai)(tai)下，也存在(zai)泄(xie)漏(lou)電(dian)(dian)(dian)流。通(tong)過固態(tai)(tai)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)泄(xie)漏(lou)電(dian)(dian)(dian)流存在(zai)，也可能會(hui)出現高(gao)電(dian)(dian)(dian)壓(ya)。即使(shi)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)不(bu)傳導大電(dian)(dian)(dian)流，開(kai)(kai)關(guan)端也將會(hui)“發熱”，因(yin)此非(fei)常(chang)危險(xian)。所以(yi)我們大家在(zai)使(shi)用的(de)(de)(de)是(shi)一定要(yao)注意，做好(hao)防(fang)護措施。