本發明涉及電(dian)子技術領域(yu)，尤(you)其(qi)涉及一種(zhong)保護電(dian)路及供電(dian)系統。

背景技術：

在(zai)供電(dian)系(xi)統(tong)中，通(tong)常包(bao)括供電(dian)設(she)備(bei)(bei)和用(yong)(yong)電(dian)設(she)備(bei)(bei)，供電(dian)設(she)備(bei)(bei)作(zuo)為用(yong)(yong)電(dian)設(she)備(bei)(bei)的正(zheng)常與(yu)否一(yi)直(zhi)是用(yong)(yong)電(dian)設(she)備(bei)(bei)正(zheng)常運(yun)轉的重(zhong)要(yao)保(bao)證之(zhi)一(yi)。供電(dian)設(she)備(bei)(bei)的技術規格和指標所隨著用(yong)(yong)電(dian)設(she)備(bei)(bei)的不同而各(ge)有差異，短(duan)路保(bao)護是其中最重(zhong)要(yao)的功能之(zhi)一(yi)。

供(gong)電(dian)(dian)(dian)設(she)備(bei)在(zai)(zai)向連接的(de)(de)用(yong)(yong)電(dian)(dian)(dian)設(she)備(bei)供(gong)電(dian)(dian)(dian)的(de)(de)過程中(zhong)，若用(yong)(yong)電(dian)(dian)(dian)設(she)備(bei)出現故障如發(fa)生短(duan)路等，會導致供(gong)電(dian)(dian)(dian)設(she)備(bei)輸出的(de)(de)電(dian)(dian)(dian)流(liu)過大，進而(er)使用(yong)(yong)電(dian)(dian)(dian)設(she)備(bei)在(zai)(zai)極高溫度下工(gong)作，增加了(le)用(yong)(yong)電(dian)(dian)(dian)設(she)備(bei)中(zhong)用(yong)(yong)電(dian)(dian)(dian)設(she)備(bei)元件的(de)(de)損耗(hao)，更(geng)甚至于(yu)使用(yong)(yong)電(dian)(dian)(dian)設(she)備(bei)過熱(re)運(yun)行，并(bing)最(zui)終燒毀，甚至引發(fa)火災等，在(zai)(zai)供(gong)電(dian)(dian)(dian)設(she)備(bei)與用(yong)(yong)電(dian)(dian)(dian)設(she)備(bei)之間的(de)(de)回路上(shang)(shang)(shang)加入(ru)短(duan)路保(bao)護是避免上(shang)(shang)(shang)述事故的(de)(de)必(bi)要措施。對短(duan)路保(bao)護來說，通常在(zai)(zai)供(gong)電(dian)(dian)(dian)設(she)備(bei)與用(yong)(yong)電(dian)(dian)(dian)設(she)備(bei)之間的(de)(de)回路上(shang)(shang)(shang)串聯保(bao)險(xian)絲，當(dang)(dang)回路上(shang)(shang)(shang)的(de)(de)電(dian)(dian)(dian)流(liu)過高時(shi)保(bao)險(xian)絲熔(rong)斷將回路斷路。當(dang)(dang)需(xu)要恢(hui)復回路導通時(shi)，則需(xu)要更(geng)換(huan)保(bao)險(xian)絲，由于(yu)需(xu)要更(geng)換(huan)回路上(shang)(shang)(shang)的(de)(de)器件，因而(er)浪費人力資源并(bing)且消(xiao)耗(hao)成本(ben)。

示(shi)例(li)性的(de)(de)，參照(zhao)圖1所示(shi)，圖1中的(de)(de)供(gong)電(dian)(dian)系(xi)統包括供(gong)電(dian)(dian)設備11、保(bao)(bao)險絲(si)12、用電(dian)(dian)設備13，其中當供(gong)電(dian)(dian)設備11輸出的(de)(de)電(dian)(dian)流(liu)過(guo)大時(shi)(shi)，保(bao)(bao)險絲(si)12熔(rong)斷(duan)，將供(gong)電(dian)(dian)設備11與用電(dian)(dian)設備13斷(duan)路(lu)(lu)(lu)(lu)。如(ru)果(guo)供(gong)電(dian)(dian)系(xi)統需要將供(gong)電(dian)(dian)設備11與用電(dian)(dian)設備13導通(tong)，則(ze)需要更換已熔(rong)斷(duan)的(de)(de)保(bao)(bao)險絲(si)12。因(yin)此(ci)現(xian)有技術中的(de)(de)保(bao)(bao)護電(dian)(dian)路(lu)(lu)(lu)(lu)在使用的(de)(de)過(guo)程中，當供(gong)電(dian)(dian)設備11輸出的(de)(de)電(dian)(dian)流(liu)過(guo)大時(shi)(shi)保(bao)(bao)險絲(si)熔(rong)斷(duan)造成回路(lu)(lu)(lu)(lu)上的(de)(de)器件損壞(huai)，當需要恢復回路(lu)(lu)(lu)(lu)導通(tong)時(shi)(shi)，需要更換回路(lu)(lu)(lu)(lu)上的(de)(de)器件，因(yin)而浪費人力資源并且消(xiao)耗成本。

技術實現要素：

本(ben)發明(ming)的(de)(de)(de)實施例提(ti)供的(de)(de)(de)保護電路及供電系統(tong)，能夠對供電設(she)(she)備與(yu)用電設(she)(she)備之(zhi)間的(de)(de)(de)回(hui)路上的(de)(de)(de)電流進行檢測，并在回(hui)路上電流過高時(shi)控制(zhi)回(hui)路斷(duan)路，從而(er)保護了用電設(she)(she)備并且不造成回(hui)路上的(de)(de)(de)器件損壞。

為達(da)到(dao)上述目的(de)，本(ben)發明(ming)的(de)實(shi)施例(li)采用如下技術方案(an)：

第一(yi)方面，本發(fa)明(ming)實施例提供了一(yi)種保(bao)(bao)護電(dian)路，包括：電(dian)流輸(shu)入  端、電(dian)流輸(shu)出(chu)端、保(bao)(bao)護模(mo)(mo)塊(kuai)(kuai)、控(kong)制模(mo)(mo)塊(kuai)(kuai)，保(bao)(bao)護模(mo)(mo)塊(kuai)(kuai)連(lian)接電(dian)流輸(shu)入端、電(dian)流輸(shu)出(chu)端和控(kong)制模(mo)(mo)塊(kuai)(kuai)；

當(dang)保護模塊(kuai)檢測到電(dian)(dian)流輸(shu)入(ru)端(duan)和(he)電(dian)(dian)流輸(shu)出端(duan)的(de)(de)回路上的(de)(de)電(dian)(dian)流小(xiao)于或等于預(yu)設的(de)(de)電(dian)(dian)流閾值時(shi)，保持電(dian)(dian)流輸(shu)入(ru)端(duan)和(he)電(dian)(dian)流輸(shu)出端(duan)導通(tong)；

當(dang)保(bao)護模(mo)塊檢測到電(dian)流(liu)輸入端和電(dian)流(liu)輸出端的(de)回(hui)路上的(de)電(dian)流(liu)大于預設的(de)電(dian)流(liu)閾(yu)值時，向(xiang)控制(zhi)模(mo)塊輸出第(di)一(yi)控制(zhi)信(xin)號；

當控(kong)(kong)制(zhi)模塊(kuai)接(jie)收到(dao)保護模塊(kuai)發送(song)的第(di)一控(kong)(kong)制(zhi)信號(hao)時，根據第(di)一控(kong)(kong)制(zhi)信號(hao)向保護模塊(kuai)輸出第(di)二(er)控(kong)(kong)制(zhi)信號(hao)；

當保護模塊(kuai)接收到控(kong)制模塊(kuai)發(fa)送(song)的第二控(kong)制信號(hao)時(shi)，根據第二控(kong)制信號(hao)將電(dian)(dian)流輸(shu)(shu)入端(duan)(duan)和電(dian)(dian)流輸(shu)(shu)出(chu)端(duan)(duan)斷路。

在第一方面的(de)第一種(zhong)可能(neng)的(de)實現方式(shi)中，保(bao)護(hu)(hu)電路(lu)在電流(liu)(liu)輸(shu)入端和(he)(he)電流(liu)(liu)輸(shu)出(chu)端斷路(lu)時，控(kong)制(zhi)模(mo)(mo)塊(kuai)周期性(xing)向保(bao)護(hu)(hu)模(mo)(mo)塊(kuai)發(fa)送第三控(kong)制(zhi)信號(hao)，保(bao)護(hu)(hu)模(mo)(mo)塊(kuai)接收控(kong)制(zhi)模(mo)(mo)塊(kuai)發(fa)送的(de)第三控(kong)制(zhi)信號(hao)，并根(gen)據第三控(kong)制(zhi)信號(hao)將(jiang)電流(liu)(liu)輸(shu)入端和(he)(he)電流(liu)(liu)輸(shu)出(chu)端導通。

結合第(di)一方(fang)(fang)面(mian)，或者第(di)一方(fang)(fang)面(mian)第(di)一種可能的(de)實現方(fang)(fang)式(shi)，在(zai)第(di)二種可能的(de)實現方(fang)(fang)式(shi)中，保護(hu)模(mo)塊包括：檢測子(zi)模(mo)塊、限流子(zi)模(mo)塊；

檢測子(zi)模(mo)(mo)塊(kuai)(kuai)的第(di)一端(duan)連接(jie)電流輸入(ru)端(duan)，檢測子(zi)模(mo)(mo)塊(kuai)(kuai)的第(di)二端(duan)連接(jie)控制模(mo)(mo)塊(kuai)(kuai)，檢測子(zi)模(mo)(mo)塊(kuai)(kuai)的第(di)三端(duan)連接(jie)限流子(zi)模(mo)(mo)塊(kuai)(kuai)，檢測子(zi)模(mo)(mo)塊(kuai)(kuai)的第(di)四端(duan)接(jie)地；

當檢(jian)測(ce)(ce)(ce)子(zi)模(mo)(mo)(mo)塊(kuai)檢(jian)測(ce)(ce)(ce)到電流(liu)(liu)輸入(ru)端和電流(liu)(liu)輸出(chu)端的(de)回(hui)路上的(de)電流(liu)(liu)小(xiao)于(yu)或等于(yu)預設(she)的(de)電流(liu)(liu)閾值時，檢(jian)測(ce)(ce)(ce)子(zi)模(mo)(mo)(mo)塊(kuai)的(de)第(di)(di)(di)一端與第(di)(di)(di)三端導通，所(suo)限流(liu)(liu)子(zi)模(mo)(mo)(mo)塊(kuai)根據控(kong)制模(mo)(mo)(mo)塊(kuai)發送的(de)第(di)(di)(di)四(si)控(kong)制信號將限流(liu)(liu)子(zi)模(mo)(mo)(mo)塊(kuai)的(de)第(di)(di)(di)二端與第(di)(di)(di)三端導通；

限(xian)流子模塊的第一端連(lian)接(jie)控(kong)制模塊，限(xian)流子模塊的第二端連(lian)接(jie)電(dian)流輸出端，限(xian)流子模塊的第三端連(lian)接(jie)檢測子模塊，限(xian)流子模塊的第四端接(jie)地；

檢(jian)(jian)(jian)測(ce)(ce)子模(mo)塊(kuai)用于檢(jian)(jian)(jian)測(ce)(ce)電(dian)流輸(shu)入端和電(dian)流輸(shu)出端的(de)回路上的(de)電(dian)流，當(dang)檢(jian)(jian)(jian)測(ce)(ce)子模(mo)塊(kuai)檢(jian)(jian)(jian)測(ce)(ce)到電(dian)流輸(shu)入端和電(dian)流輸(shu)出端的(de)回路上的(de)電(dian)流小于或(huo)等于預設的(de)電(dian)流閾(yu)值時，檢(jian)(jian)(jian)測(ce)(ce)子模(mo)塊(kuai)的(de)第(di)(di)一端與(yu)檢(jian)(jian)(jian)測(ce)(ce)子模(mo)塊(kuai)的(de)第(di)(di)三(san)(san)端導通，限(xian)流子模(mo)塊(kuai)將(jiang)限(xian)流子模(mo)塊(kuai)的(de)第(di)(di)二端和限(xian)流子模(mo)塊(kuai)的(de)第(di)(di)三(san)(san)端導通；

當檢(jian)(jian)測(ce)(ce)子(zi)模(mo)塊(kuai)檢(jian)(jian)測(ce)(ce)到電(dian)(dian)流(liu)輸(shu)入端和(he)電(dian)(dian)流(liu)輸(shu)出端的(de)回路上的(de)電(dian)(dian)流(liu)大于預(yu)設的(de)電(dian)(dian)流(liu)閾值(zhi)時，檢(jian)(jian)測(ce)(ce)子(zi)模(mo)塊(kuai)通過檢(jian)(jian)測(ce)(ce)子(zi)模(mo)塊(kuai)的(de)第二(er)端向(xiang)控制模(mo)塊(kuai)輸(shu)出第一控制信(xin)號；

限(xian)流(liu)(liu)子(zi)模(mo)塊還(huan)用于通過(guo)限(xian)流(liu)(liu)子(zi)模(mo)塊的第(di)(di)一端接收控制模(mo)塊發送的第(di)(di)二(er)控制信號，并根據(ju)第(di)(di)二(er)控制信號將限(xian)流(liu)(liu)子(zi)模(mo)塊的第(di)(di)二(er)端和限(xian)流(liu)(liu)子(zi)模(mo)塊的第(di)(di)三端斷路；

當電流(liu)輸入端和電流(liu)輸出端斷路時；

限流(liu)子(zi)模塊還用于(yu)接收控制模塊發送(song)的第三控制信號，并根據第三控制信號將(jiang)限流(liu)子(zi)模塊的第二(er)端和限流(liu)子(zi)模塊的第三端導通。

結合第(di)(di)(di)一方面(mian)第(di)(di)(di)二種可能(neng)的實現(xian)方式，在(zai)第(di)(di)(di)三種可能(neng)的實現(xian)方式中，檢測子模(mo)塊包括：第(di)(di)(di)一電(dian)阻(zu)單元(yuan)(yuan)、第(di)(di)(di)二電(dian)阻(zu)單元(yuan)(yuan)、第(di)(di)(di)三電(dian)阻(zu)單元(yuan)(yuan)、第(di)(di)(di)四(si)電(dian)阻(zu)單元(yuan)(yuan)、第(di)(di)(di)五(wu)電(dian)阻(zu)單元(yuan)(yuan)、第(di)(di)(di)一開關(guan)單元(yuan)(yuan)、第(di)(di)(di)二開關(guan)單元(yuan)(yuan)；

第(di)一電(dian)阻單元(yuan)的(de)第(di)一端連(lian)接(jie)檢(jian)測子(zi)模(mo)塊的(de)第(di)一端，第(di)一電(dian)阻單元(yuan)的(de)第(di)二端連(lian)接(jie)檢(jian)測子(zi)模(mo)塊的(de)第(di)三端；

第(di)二電(dian)阻(zu)(zu)(zu)單(dan)元(yuan)的第(di)一端(duan)連(lian)(lian)(lian)接檢測子模(mo)塊的第(di)一端(duan)，第(di)三電(dian)阻(zu)(zu)(zu)單(dan)元(yuan)的第(di)一端(duan)連(lian)(lian)(lian)接第(di)二電(dian)阻(zu)(zu)(zu)單(dan)元(yuan)的第(di)二端(duan)，第(di)三電(dian)阻(zu)(zu)(zu)單(dan)元(yuan)的第(di)二端(duan)連(lian)(lian)(lian)接至檢測子模(mo)塊的第(di)三端(duan)；

第(di)(di)一開關(guan)單(dan)(dan)元的(de)第(di)(di)一端(duan)連(lian)(lian)接檢測子模塊(kuai)的(de)第(di)(di)一端(duan)，第(di)(di)一開關(guan)單(dan)(dan)元的(de)第(di)(di)二(er)端(duan)連(lian)(lian)接第(di)(di)四電(dian)阻單(dan)(dan)元的(de)第(di)(di)一端(duan)，第(di)(di)一開關(guan)單(dan)(dan)元的(de)控(kong)制端(duan)連(lian)(lian)接第(di)(di)二(er)電(dian)阻單(dan)(dan)元的(de)第(di)(di)二(er)端(duan)；

第四(si)電(dian)阻(zu)單元的(de)(de)第一端(duan)連(lian)接第一開(kai)關(guan)單元的(de)(de)第二端(duan)，第四(si)電(dian)阻(zu)單元的(de)(de)第二端(duan)連(lian)接第二開(kai)關(guan)單元的(de)(de)控制(zhi)端(duan)；

第五(wu)(wu)電(dian)阻單元的(de)第一端(duan)連接第二開(kai)關單元的(de)控制(zhi)端(duan)，第五(wu)(wu)電(dian)阻單元的(de)第二端(duan)接地；

第二開關單元的(de)第一(yi)端(duan)連接控(kong)制模塊(kuai)，第二開關單元的(de)第二端(duan)接地。

結合第(di)(di)(di)(di)(di)一(yi)方面第(di)(di)(di)(di)(di)三(san)種可(ke)能的(de)實現方式，在第(di)(di)(di)(di)(di)四種可(ke)能的(de)實現方式中，檢測子模(mo)(mo)塊包括(kuo)：連(lian)接(jie)于(yu)第(di)(di)(di)(di)(di)三(san)電(dian)阻單元的(de)第(di)(di)(di)(di)(di)二端和檢測子模(mo)(mo)塊的(de)第(di)(di)(di)(di)(di)三(san)端之間的(de)第(di)(di)(di)(di)(di)一(yi)二極(ji)管，第(di)(di)(di)(di)(di)一(yi)二極(ji)管的(de)陽極(ji)連(lian)接(jie)第(di)(di)(di)(di)(di)三(san)電(dian)阻單元的(de)第(di)(di)(di)(di)(di)二端，第(di)(di)(di)(di)(di)一(yi)二極(ji)管的(de)陰極(ji)連(lian)接(jie)檢測子模(mo)(mo)塊的(de)第(di)(di)(di)(di)(di)三(san)端。

結合(he)第(di)一(yi)(yi)方面第(di)三(san)種可能(neng)(neng)的實現(xian)方式，在(zai)第(di)五種可能(neng)(neng)的實現(xian)方式中，第(di)一(yi)(yi)電(dian)阻單元包括：

檢測子(zi)模(mo)塊的第一端和(he)第三(san)端之間串聯(lian)有至少一條(tiao)(tiao)電阻(zu)支路(lu)，其中每(mei)條(tiao)(tiao)電阻(zu)支路(lu)串聯(lian)有至少一個(ge)電阻(zu)。

結(jie)合第(di)一方(fang)(fang)面(mian)第(di)三種(zhong)可能的(de)實現(xian)方(fang)(fang)式，在第(di)六種(zhong)可能的(de)實現(xian)方(fang)(fang)式中，第(di)一開關(guan)(guan)單元為N型開關(guan)(guan)晶體管、第(di)二(er)開關(guan)(guan)單元為P型開關(guan)(guan)晶體管。

結(jie)合(he)第(di)一方(fang)面第(di)二種可(ke)能(neng)的(de)實(shi)現(xian)方(fang)式，在(zai)第(di)七種可(ke)能(neng)的(de)實(shi)現(xian)方(fang)式中，限流子模塊包括：第(di)六電(dian)阻(zu)(zu)單元(yuan)、第(di)七電(dian)阻(zu)(zu)單元(yuan)、第(di)八電(dian)阻(zu)(zu)單元(yuan)、第(di)九(jiu)電(dian)阻(zu)(zu)單元(yuan)、第(di)三(san)開關單元(yuan)、第(di)四開關單元(yuan)；

第(di)(di)六電(dian)阻(zu)單(dan)(dan)元的(de)第(di)(di)一(yi)(yi)端(duan)(duan)連接(jie)限流(liu)子模(mo)塊(kuai)的(de)第(di)(di)一(yi)(yi)端(duan)(duan)，第(di)(di)六電(dian)阻(zu)單(dan)(dan)元的(de)第(di)(di)二端(duan)(duan)連接(jie)第(di)(di)三開關單(dan)(dan)元的(de)控(kong)制端(duan)(duan)；

第七電(dian)阻單(dan)(dan)元的第一(yi)端連(lian)(lian)接(jie)第三開關單(dan)(dan)元的控制端，第七電(dian)阻單(dan)(dan)元的第二端連(lian)(lian)接(jie)第三開關單(dan)(dan)元的第二端；

第三開(kai)關(guan)單元的(de)第一(yi)端(duan)連(lian)接第八電(dian)阻單元的(de)第一(yi)端(duan)，第三開(kai)關(guan)單元的(de)第二端(duan)連(lian)接限流子模塊的(de)第四端(duan)；

第八(ba)電(dian)阻單元的第二(er)端(duan)連接第四開關單元的控(kong)制端(duan)；

第(di)(di)九電阻單元的(de)第(di)(di)一端連接(jie)(jie)第(di)(di)四(si)開關單元的(de)控制端，第(di)(di)九電阻單元的(de)第(di)(di)二端連接(jie)(jie)限(xian)流(liu)子模塊的(de)第(di)(di)一端；

第(di)(di)四開(kai)關單元的(de)(de)第(di)(di)一(yi)端連接(jie)限流子(zi)模塊的(de)(de)第(di)(di)一(yi)端，第(di)(di)四開(kai)關單元的(de)(de)第(di)(di)二端連接(jie)限流子(zi)模塊的(de)(de)第(di)(di)二端。

結合第(di)一方面第(di)七種(zhong)可能的實現方式，在第(di)八種(zhong)可能的實現方式中，第(di)三開(kai)關(guan)(guan)單元為N型開(kai)關(guan)(guan)晶(jing)(jing)體(ti)管(guan)、第(di)四開(kai)關(guan)(guan)單元為P型開(kai)關(guan)(guan)晶(jing)(jing)體(ti)管(guan)。

在第一(yi)方(fang)面的第九種可能的實現(xian)方(fang)式中，還包括(kuo)穩(wen)壓(ya)模(mo)(mo)塊(kuai)，穩(wen)壓(ya)模(mo)(mo)塊(kuai)的第一(yi)端(duan)連接電(dian)流輸(shu)出端(duan)，穩(wen)壓(ya)模(mo)(mo)塊(kuai)的第二端(duan)接地。

結合第(di)一方(fang)(fang)面(mian)第(di)九種可能的實現(xian)方(fang)(fang)式(shi)(shi)，在(zai)第(di)十種可能的實現(xian)方(fang)(fang)式(shi)(shi)中，穩壓模塊包括第(di)二(er)二(er)極(ji)管(guan)，第(di)二(er)二(er)極(ji)管(guan)的陽極(ji)接地，第(di)二(er)二(er)極(ji)管(guan)的陰(yin)極(ji)連(lian)接電流輸出(chu)端。

第二方面(mian)，本發明實施例提供(gong)(gong)了一種供(gong)(gong)電系統(tong)，包括供(gong)(gong)電設(she)(she)備(bei)、用電設(she)(she)備(bei)和(he)保(bao)護(hu)電路(lu)，保(bao)護(hu)電路(lu)設(she)(she)置于(yu)供(gong)(gong)電設(she)(she)備(bei)和(he)用電設(she)(she)備(bei)之(zhi)間，其中保(bao)護(hu)電路(lu)上述實現方式中任(ren)一項所描述的保(bao)護(hu)電路(lu)。

本發(fa)(fa)明(ming)實施(shi)例提供的(de)(de)(de)保(bao)(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)及供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統包括：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)端(duan)(duan)(duan)(duan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)(duan)(duan)、保(bao)(bao)(bao)護(hu)模(mo)(mo)(mo)塊(kuai)、控(kong)(kong)制(zhi)(zhi)(zhi)模(mo)(mo)(mo)塊(kuai)，保(bao)(bao)(bao)護(hu)模(mo)(mo)(mo)塊(kuai)連接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)端(duan)(duan)(duan)(duan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)(duan)(duan)和(he)控(kong)(kong)制(zhi)(zhi)(zhi)模(mo)(mo)(mo)塊(kuai)；當(dang)保(bao)(bao)(bao)護(hu)模(mo)(mo)(mo)塊(kuai)檢(jian)測到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)端(duan)(duan)(duan)(duan)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)(duan)(duan)的(de)(de)(de)回(hui)(hui)路(lu)(lu)(lu)(lu)上的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)小于(yu)(yu)(yu)或等于(yu)(yu)(yu)預設(she)(she)(she)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)閾值時，保(bao)(bao)(bao)持(chi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)端(duan)(duan)(duan)(duan)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)(duan)(duan)導通，使與保(bao)(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)在(zai)同一(yi)回(hui)(hui)路(lu)(lu)(lu)(lu)中(zhong)(zhong)的(de)(de)(de)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)能夠正(zheng)常工作；當(dang)保(bao)(bao)(bao)護(hu)模(mo)(mo)(mo)塊(kuai)檢(jian)測到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)端(duan)(duan)(duan)(duan)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)(duan)(duan)的(de)(de)(de)回(hui)(hui)路(lu)(lu)(lu)(lu)上的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)大于(yu)(yu)(yu)預設(she)(she)(she)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)閾值時，向(xiang)控(kong)(kong)制(zhi)(zhi)(zhi)模(mo)(mo)(mo)塊(kuai)輸(shu)(shu)(shu)(shu)出(chu)第(di)一(yi)控(kong)(kong)制(zhi)(zhi)(zhi)信(xin)號(hao)；當(dang)控(kong)(kong)制(zhi)(zhi)(zhi)模(mo)(mo)(mo)塊(kuai)接(jie)收到(dao)保(bao)(bao)(bao)護(hu)模(mo)(mo)(mo)塊(kuai)發(fa)(fa)送的(de)(de)(de)第(di)一(yi)控(kong)(kong)制(zhi)(zhi)(zhi)信(xin)號(hao)時，根(gen)據(ju)第(di)一(yi)控(kong)(kong)制(zhi)(zhi)(zhi)信(xin)號(hao)向(xiang)保(bao)(bao)(bao)護(hu)模(mo)(mo)(mo)塊(kuai)輸(shu)(shu)(shu)(shu)出(chu)第(di)二(er)(er)控(kong)(kong)制(zhi)(zhi)(zhi)信(xin)號(hao)；當(dang)保(bao)(bao)(bao)護(hu)模(mo)(mo)(mo)塊(kuai)接(jie)收到(dao)控(kong)(kong)制(zhi)(zhi)(zhi)模(mo)(mo)(mo)塊(kuai)發(fa)(fa)送的(de)(de)(de)第(di)二(er)(er)控(kong)(kong)制(zhi)(zhi)(zhi)信(xin)號(hao)時，根(gen)據(ju)第(di)二(er)(er)控(kong)(kong)制(zhi)(zhi)(zhi)信(xin)號(hao)將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)端(duan)(duan)(duan)(duan)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)(duan)(duan)斷路(lu)(lu)(lu)(lu)，從而(er)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)端(duan)(duan)(duan)(duan)輸(shu)(shu)(shu)(shu)入(ru)(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)高于(yu)(yu)(yu)臨界電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)時切斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)端(duan)(duan)(duan)(duan)的(de)(de)(de)輸(shu)(shu)(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)，使與保(bao)(bao)(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)在(zai)同一(yi)回(hui)(hui)路(lu)(lu)(lu)(lu)中(zhong)(zhong)的(de)(de)(de)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)與供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)斷路(lu)(lu)(lu)(lu)，避免(mian)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)因電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)過大而(er)損毀并且不造(zao)成回(hui)(hui)路(lu)(lu)(lu)(lu)上的(de)(de)(de)器件損壞，無需更換回(hui)(hui)路(lu)(lu)(lu)(lu)上的(de)(de)(de)器件。

附圖說明

為了(le)更(geng)清楚地(di)(di)說明(ming)本發(fa)明(ming)實施(shi)(shi)例(li)(li)或現(xian)有(you)技(ji)術(shu)中(zhong)的(de)(de)(de)技(ji)術(shu)方案，下面(mian)將(jiang)對實施(shi)(shi)例(li)(li)或現(xian)有(you)技(ji)術(shu)描述(shu)中(zhong)所(suo)需要使(shi)用的(de)(de)(de)附(fu)(fu)圖作簡(jian)單地(di)(di)介紹，顯而易見地(di)(di)，下面(mian)描述(shu)中(zhong)的(de)(de)(de)附(fu)(fu)圖僅僅是本發(fa)明(ming)的(de)(de)(de)一些實施(shi)(shi)例(li)(li)，對于本領域普通技(ji)術(shu)人(ren)員來講，在不付出創造(zao)性勞動的(de)(de)(de)前提下，還(huan)可以根據(ju)這些附(fu)(fu)圖獲(huo)得其他的(de)(de)(de)附(fu)(fu)圖。

圖1為現有(you)技術中保護電路的示意性結構圖；

圖(tu)2為(wei)本發(fa)明(ming)實施(shi)例提供的保護電路的示意性結構圖(tu)；

圖(tu)3為(wei)本發明實施(shi)例(li)提(ti)供的另一(yi)種保(bao)護電路的示意性結構圖(tu)；

圖4為本(ben)發明實施(shi)例提供的(de)另一種保護電路的(de)示(shi)意性結構圖；

圖5為本發明實(shi)施例提供的(de)保護電路的(de)電路圖。

具體實施方式

下面將結(jie)合本(ben)(ben)發(fa)(fa)明(ming)(ming)實(shi)施(shi)(shi)例(li)(li)中(zhong)的(de)附圖，對本(ben)(ben)發(fa)(fa)明(ming)(ming)實(shi)施(shi)(shi)例(li)(li)中(zhong)的(de)技術方案進行清楚、完整地(di)描述，顯然，所(suo)描述的(de)實(shi)施(shi)(shi)例(li)(li)僅僅是(shi)本(ben)(ben)發(fa)(fa)明(ming)(ming)一部(bu)分實(shi)施(shi)(shi)例(li)(li)，而不是(shi)全部(bu)的(de)實(shi)施(shi)(shi)例(li)(li)。基于本(ben)(ben)發(fa)(fa)明(ming)(ming)中(zhong)的(de)實(shi)施(shi)(shi)例(li)(li)，本(ben)(ben)領域(yu)普 通技術人(ren)員(yuan)在沒有做出創(chuang)造性勞動前提下所(suo)獲(huo)得的(de)所(suo)有其他實(shi)施(shi)(shi)例(li)(li)，都屬于本(ben)(ben)發(fa)(fa)明(ming)(ming)保護的(de)范圍。

需要說明(ming)(ming)的(de)是，為(wei)了(le)(le)便于(yu)清楚描述本發(fa)明(ming)(ming)實施例的(de)技(ji)術方案，在本發(fa)明(ming)(ming)的(de)實施例中(zhong)，采(cai)用(yong)了(le)(le)“第(di)一(yi)”、“第(di)二”等(deng)字樣(yang)對(dui)功能和作用(yong)基本相同(tong)的(de)相同(tong)項或相似項進(jin)行區分(fen)，本領域技(ji)術人員(yuan)可以理解“第(di)一(yi)”、“第(di)二”等(deng)字樣(yang)并不是在對(dui)數量和執(zhi)行次序進(jin)行限定(ding)。供電(dian)(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)可以是恒流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)源(yuan)(yuan)(yuan)(yuan)或者(zhe)時變電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)源(yuan)(yuan)(yuan)(yuan)，本發(fa)明(ming)(ming)中(zhong)供電(dian)(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)為(wei)恒流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)源(yuan)(yuan)(yuan)(yuan)，通(tong)常供電(dian)(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)為(wei)電(dian)(dian)(dian)(dian)瓶或者(zhe)輸(shu)入交變電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)出恒定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)變壓(ya)整流(liu)(liu)(liu)設(she)(she)(she)備(bei)(bei)(bei)；用(yong)電(dian)(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)為(wei)CD播放設(she)(she)(she)備(bei)(bei)(bei)、視頻播放設(she)(she)(she)備(bei)(bei)(bei)、FM設(she)(she)(she)備(bei)(bei)(bei)等(deng)等(deng)車載設(she)(she)(she)備(bei)(bei)(bei)。其中(zhong)本發(fa)明(ming)(ming)的(de)實施例所采(cai)用(yong)的(de)晶體(ti)管(guan)(guan)(guan)為(wei)場(chang)效應(ying)管(guan)(guan)(guan)或其他特性相同(tong)的(de)器件，其中(zhong)由于(yu)場(chang)效應(ying)管(guan)(guan)(guan)的(de)制(zhi)作工藝源(yuan)(yuan)(yuan)(yuan)極(ji)和漏(lou)極(ji)對(dui)稱，因此本發(fa)明(ming)(ming)的(de)實施例中(zhong)各個晶體(ti)管(guan)(guan)(guan)的(de)控制(zhi)端為(wei)柵極(ji)、晶體(ti)管(guan)(guan)(guan)的(de)第(di)一(yi)端為(wei)源(yuan)(yuan)(yuan)(yuan)極(ji)第(di)二端為(wei)漏(lou)極(ji)，或者(zhe)晶體(ti)管(guan)(guan)(guan)的(de)第(di)一(yi)端為(wei)漏(lou)極(ji)第(di)二端為(wei)源(yuan)(yuan)(yuan)(yuan)極(ji)。其中(zhong)P型(xing)開(kai)關晶體(ti)管(guan)(guan)(guan)為(wei)高壓(ya)導(dao)(dao)通(tong)，即(ji)柵源(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)壓(ya)差為(wei)正值且大(da)于(yu)閾值電(dian)(dian)(dian)(dian)壓(ya)時，晶體(ti)管(guan)(guan)(guan)導(dao)(dao)通(tong)或開(kai)啟；其中(zhong)N型(xing)開(kai)關晶體(ti)管(guan)(guan)(guan)為(wei)低(di)壓(ya)導(dao)(dao)通(tong)，即(ji)柵源(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)壓(ya)差為(wei)負值且柵源(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)壓(ya)差的(de)絕對(dui)值大(da)于(yu)閾值電(dian)(dian)(dian)(dian)壓(ya)時，晶體(ti)管(guan)(guan)(guan)導(dao)(dao)通(tong)或開(kai)啟。

另(ling)外，本發明所(suo)有實(shi)施(shi)例中采用的(de)穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)二(er)(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)在一定電(dian)壓(ya)(ya)(ya)(ya)(ya)范(fan)圍(wei)內均為單(dan)向(xiang)(xiang)導(dao)通(tong)，即只允許電(dian)流(liu)從(cong)穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)二(er)(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)的(de)陽(yang)極(ji)(ji)(ji)(ji)(ji)流(liu)向(xiang)(xiang)穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)二(er)(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)的(de)陰極(ji)(ji)(ji)(ji)(ji)，但(dan)當穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)二(er)(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)陰極(ji)(ji)(ji)(ji)(ji)與陽(yang)極(ji)(ji)(ji)(ji)(ji)的(de)反(fan)向(xiang)(xiang)電(dian)壓(ya)(ya)(ya)(ya)(ya)大于穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)二(er)(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)的(de)擊穿電(dian)壓(ya)(ya)(ya)(ya)(ya)時(shi)(shi)，穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)二(er)(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)會被反(fan)向(xiang)(xiang)擊穿，此時(shi)(shi)電(dian)流(liu)可以從(cong)穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)二(er)(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)的(de)陰極(ji)(ji)(ji)(ji)(ji)流(liu)向(xiang)(xiang)穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)(ya)二(er)(er)極(ji)(ji)(ji)(ji)(ji)管(guan)(guan)的(de)陽(yang)極(ji)(ji)(ji)(ji)(ji)。

具體的，參照圖2所(suo)示，本發明的實施例提供一種保(bao)護電(dian)(dian)路(lu)，包括：電(dian)(dian)流(liu)輸(shu)入端Iin，電(dian)(dian)流(liu)輸(shu)出(chu)端Iout，保(bao)護模(mo)(mo)塊(kuai)21和控(kong)制(zhi)模(mo)(mo)塊(kuai)22，保(bao)護模(mo)(mo)塊(kuai)21連(lian)接電(dian)(dian)流(liu)輸(shu)入端Iin、電(dian)(dian)流(liu)輸(shu)出(chu)端Iout和控(kong)制(zhi)模(mo)(mo)塊(kuai)22；

保(bao)(bao)護模塊21用(yong)于當(dang)檢(jian)測到(dao)電(dian)(dian)流輸入(ru)(ru)端Iin和(he)電(dian)(dian)流輸出端Iout的回路上的電(dian)(dian)流小(xiao)于或等于預設的電(dian)(dian)流閾值(zhi)的電(dian)(dian)流時，保(bao)(bao)持(chi)電(dian)(dian)流輸入(ru)(ru)端Iin和(he)電(dian)(dian)流輸出端Iout導通；

保護模塊21用于當檢測到電流輸出(chu)端Iout的(de)回路(lu)上的(de)電流大于預設的(de)電流閾值的(de)電流時，保護模塊21向控制模塊22輸出(chu)第(di)一控制信號；

控(kong)制模(mo)(mo)塊(kuai)22接收保護模(mo)(mo)塊(kuai)21發送的第一(yi)控(kong)制信號；根(gen)據接收到的第一(yi)控(kong)制信號向(xiang)保護模(mo)(mo)塊(kuai)21輸(shu)出第二控(kong)制信號；

保(bao)護模塊21還用于接收控(kong)制(zhi)模塊22發送的第(di)二控(kong)制(zhi)信號，并根據第(di)二控(kong)制(zhi)信號將電(dian)流輸(shu)入端Iin和(he)電(dian)流輸(shu)出端Iout斷路。

需要說明的(de)是預(yu)設(she)(she)(she)的(de)電(dian)(dian)(dian)流(liu)閾(yu)值(zhi)(zhi)可(ke)(ke)(ke)以(yi)(yi)為一(yi)(yi)(yi)個(ge)固定的(de)電(dian)(dian)(dian)流(liu)值(zhi)(zhi)，還可(ke)(ke)(ke)以(yi)(yi)為在一(yi)(yi)(yi)定范圍(wei)內波(bo)動的(de)一(yi)(yi)(yi)個(ge)電(dian)(dian)(dian)流(liu)范圍(wei)。示(shi)例性(xing)的(de)，電(dian)(dian)(dian)流(liu)輸(shu)入(ru)端(duan)(duan)(duan)Iin可(ke)(ke)(ke)以(yi)(yi)連接供(gong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)的(de)電(dian)(dian)(dian)流(liu)輸(shu)出(chu)端(duan)(duan)(duan)Iout，電(dian)(dian)(dian)流(liu)輸(shu)出(chu)端(duan)(duan)(duan)Iout可(ke)(ke)(ke)以(yi)(yi)連接用(yong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)的(de)電(dian)(dian)(dian)流(liu)輸(shu)入(ru)端(duan)(duan)(duan)，小于或等于預(yu)設(she)(she)(she)的(de)電(dian)(dian)(dian)流(liu)閾(yu)值(zhi)(zhi)的(de)電(dian)(dian)(dian)流(liu)可(ke)(ke)(ke)以(yi)(yi)為由(you)供(gong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)輸(shu)出(chu)的(de)可(ke)(ke)(ke)以(yi)(yi)使(shi)用(yong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)正(zheng)常工(gong)作(zuo)的(de)電(dian)(dian)(dian)流(liu)范圍(wei)，大于預(yu)設(she)(she)(she)的(de)電(dian)(dian)(dian)流(liu)閾(yu)值(zhi)(zhi)的(de)電(dian)(dian)(dian)流(liu)可(ke)(ke)(ke)以(yi)(yi)為由(you)供(gong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)輸(shu)出(chu)的(de)可(ke)(ke)(ke)能造(zao)成與(yu)保護電(dian)(dian)(dian)路在同一(yi)(yi)(yi)個(ge)回路中(zhong)的(de)用(yong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)超載(zai)、元(yuan)件損耗、過(guo)熱(re)、燒(shao)毀等的(de)電(dian)(dian)(dian)流(liu)范圍(wei)，為保護用(yong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)及供(gong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)，此時需將用(yong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)與(yu)供(gong)電(dian)(dian)(dian)設(she)(she)(she)備(bei)(bei)(bei)(bei)斷路。

本(ben)發明(ming)實(shi)施例(li)提(ti)供的保(bao)護電(dian)(dian)(dian)(dian)路及供電(dian)(dian)(dian)(dian)裝(zhuang)置包括：電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)端(duan)(duan)(duan)Iin、電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)Iout、保(bao)護模(mo)(mo)塊(kuai)(kuai)21、控制模(mo)(mo)塊(kuai)(kuai)22，保(bao)護模(mo)(mo)塊(kuai)(kuai)21連接(jie)(jie)所(suo)述電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)端(duan)(duan)(duan)Iin、電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)Iout和控制模(mo)(mo)塊(kuai)(kuai)22，當(dang)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)端(duan)(duan)(duan)Iin輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)低于臨界(jie)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的第一電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)時保(bao)護模(mo)(mo)塊(kuai)(kuai)21可將電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)端(duan)(duan)(duan)Iin與電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)Iout導通，當(dang)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)端(duan)(duan)(duan)Iin輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)高于臨界(jie)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的第二(er)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)時，保(bao)護模(mo)(mo)塊(kuai)(kuai)21可向控制模(mo)(mo)塊(kuai)(kuai)22輸(shu)(shu)(shu)(shu)出(chu)(chu)第一信號(hao)，控制模(mo)(mo)塊(kuai)(kuai)22在(zai)接(jie)(jie)收到第一信號(hao)時，向保(bao)護模(mo)(mo)塊(kuai)(kuai)21輸(shu)(shu)(shu)(shu)出(chu)(chu)第二(er)信號(hao)，保(bao)護模(mo)(mo)塊(kuai)(kuai)21在(zai)接(jie)(jie)收到第二(er)信號(hao)時，切(qie)斷電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)端(duan)(duan)(duan)Iin與電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)Iout，從而(er)在(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)端(duan)(duan)(duan)Iin輸(shu)(shu)(shu)(shu)入(ru)(ru)(ru)(ru)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)高于臨界(jie)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)時切(qie)斷電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)Iout的輸(shu)(shu)(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)；所(suo)以(yi)本(ben)發明(ming)的實(shi)施例(li)可以(yi)避免與保(bao)護電(dian)(dian)(dian)(dian)路在(zai)同一個回路中(zhong)的用電(dian)(dian)(dian)(dian)設備(bei)因電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)過大而(er)損(sun)毀(hui)，并且(qie)不造(zao)成回路上的器件損(sun)壞，無(wu)需更換回路上的器件。

進一步的，參(can)照圖2所(suo)示，在上述實施例中(zhong)，當(dang)電(dian)流輸(shu)入(ru)端(duan)(duan)(duan)和所(suo)述電(dian)流輸(shu)出端(duan)(duan)(duan)斷路時，控制(zhi)模(mo)塊(kuai)22還用于周期性的向保護(hu)模(mo)塊(kuai)21發送第三控制(zhi)信號(hao)(hao)，保護(hu)模(mo)塊(kuai)21根據接收到的第三控制(zhi)信號(hao)(hao)將電(dian)流輸(shu)入(ru)端(duan)(duan)(duan)Iin和電(dian)流輸(shu)出端(duan)(duan)(duan)Iout導通。

上(shang)述實施例提供(gong)的(de)(de)保(bao)護電(dian)(dian)(dian)(dian)路中，當電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)入(ru)端(duan)Iin和電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)出端(duan)Iout處于(yu)(yu)斷路狀態時(shi)，控制(zhi)模(mo)塊(kuai)(kuai)22向保(bao)護模(mo)塊(kuai)(kuai)21周(zhou)(zhou)期(qi)(qi)性(xing)的(de)(de)發(fa)送第三(san)控制(zhi)信號(hao)(hao)，保(bao)護模(mo)塊(kuai)(kuai)21根據接(jie)收(shou)到的(de)(de)第三(san)控制(zhi)信號(hao)(hao)將(jiang)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)入(ru)端(duan)Iin 和電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)出端(duan)Iout導通，如果此時(shi)保(bao)護模(mo)塊(kuai)(kuai)21檢(jian)測(ce)到電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)入(ru)端(duan)Iin輸(shu)入(ru)大于(yu)(yu)預設的(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)閾值的(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)時(shi)，則再次(ci)將(jiang)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)入(ru)端(duan)Iin和電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)出端(duan)Iout斷路，使與保(bao)護電(dian)(dian)(dian)(dian)路在(zai)同(tong)一個回路中的(de)(de)用電(dian)(dian)(dian)(dian)設備(bei)不(bu)會因(yin)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)過大而損毀，并且在(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)恢復正(zheng)常范圍(wei)時(shi)(電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)小于(yu)(yu)或等于(yu)(yu)預設的(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)閾值時(shi))將(jiang)用電(dian)(dian)(dian)(dian)設備(bei)與供(gong)電(dian)(dian)(dian)(dian)設備(bei)導通，其中上(shang)述向保(bao)護模(mo)塊(kuai)(kuai)21發(fa)送第三(san)控制(zhi)信號(hao)(hao)的(de)(de)周(zhou)(zhou)期(qi)(qi)可以根據需求調整周(zhou)(zhou)期(qi)(qi)間隔(ge)的(de)(de)大小，以實現檢(jian)測(ce)的(de)(de)靈敏性(xing)，避免即(ji)時(shi)大電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)對電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測(ce)的(de)(de)干(gan)擾；同(tong)時(shi)在(zai)用電(dian)(dian)(dian)(dian)設備(bei)側的(de)(de)故障(zhang)排(pai)除后恢復通過保(bao)護回路的(de)(de)供(gong)電(dian)(dian)(dian)(dian)，從而節省了成本和人力資源。

進一(yi)步的(de)(de)，參照圖(tu)2所(suo)示，上(shang)述(shu)(shu)實施(shi)例(li)提供的(de)(de)保護電(dian)路還包括穩壓(ya)模塊23，穩壓(ya)模塊23的(de)(de)第一(yi)端(duan)(duan)(duan)連接(jie)電(dian)流輸(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)Iout，穩壓(ya)模塊23的(de)(de)第二(er)端(duan)(duan)(duan)接(jie)地，用于(yu)穩定(ding)電(dian)流輸(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)Iout的(de)(de)電(dian)壓(ya)。當電(dian)流輸(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)的(de)(de)電(dian)壓(ya)高(gao)于(yu)預(yu)設的(de)(de)電(dian)壓(ya)值時，將所(suo)述(shu)(shu)電(dian)流輸(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)接(jie)地，從而維持(chi)電(dian)流輸(shu)(shu)(shu)出(chu)(chu)端(duan)(duan)(duan)的(de)(de)電(dian)壓(ya)維持(chi)在(zai)穩定(ding)的(de)(de)范圍內(nei)。

具(ju)體(ti)的，參照圖3所(suo)示(shi)，上述實施(shi)例提(ti)供的保護模塊(kuai)22包括：檢測子模塊(kuai)201、限(xian)流(liu)子模塊(kuai)202；

檢測(ce)子模(mo)塊(kuai)201的(de)第(di)(di)一端E01連接電流(liu)輸入(ru)端Iin，檢測(ce)子模(mo)塊(kuai)201的(de)第(di)(di)二端E02連接控制模(mo)塊(kuai)，檢測(ce)子模(mo)塊(kuai)201的(de)第(di)(di)三端E03連接限流(liu)子模(mo)塊(kuai)202的(de)第(di)(di)三端F03，檢測(ce)子模(mo)塊(kuai)201的(de)第(di)(di)四端E04接地；

限流子(zi)模塊(kuai)202的第(di)(di)(di)一端(duan)F01連接(jie)(jie)控(kong)制模塊(kuai)，第(di)(di)(di)二端(duan)F02連接(jie)(jie)電流輸出(chu)端(duan)Iout，第(di)(di)(di)三端(duan)F03連接(jie)(jie)檢測子(zi)模塊(kuai)201，第(di)(di)(di)四(si)端(duan)F04接(jie)(jie)地；

當(dang)檢測子模(mo)塊(kuai)201的(de)(de)第(di)一(yi)端(duan)(duan)E01從電流輸入端(duan)(duan)Iin輸入小于或等于預(yu)設的(de)(de)電流閾值的(de)(de)電流時，檢測子模(mo)塊(kuai)202的(de)(de)第(di)一(yi)端(duan)(duan)E01與(yu)檢測子模(mo)塊(kuai)202的(de)(de)第(di)三端(duan)(duan)E03之(zhi)間導(dao)通，限流子模(mo)塊(kuai)202從控制(zhi)模(mo)塊(kuai)22接收第(di)四(si)控制(zhi)信號(hao)，根據第(di)四(si)控制(zhi)信號(hao)將限流子模(mo)塊(kuai)202的(de)(de)第(di)三端(duan)(duan)F03與(yu)限流子模(mo)塊(kuai)202的(de)(de)第(di)二端(duan)(duan)F02之(zhi)間導(dao)通。

當檢測子(zi)模(mo)(mo)塊(kuai)201的(de)第(di)一端(duan)E01從電流輸(shu)(shu)入端(duan)Iin輸(shu)(shu)入大(da)于預設(she)的(de)電流閾(yu)值(zhi)的(de)電流時，檢測子(zi)模(mo)(mo)塊(kuai)201的(de)第(di)二(er)端(duan)E02向控制模(mo)(mo)塊(kuai)22輸(shu)(shu)出(chu)第(di)一控制信(xin)號。

限(xian)流子模塊(kuai)(kuai)202的第(di)一端(duan)F01在接(jie)收(shou)到(dao)控制(zhi)模塊(kuai)(kuai)22發出的第(di)二控制(zhi)信號時(shi)將(jiang)限(xian)流子模塊(kuai)(kuai)202的第(di)二端(duan)F02與(yu)限(xian)流子模塊(kuai)(kuai)202的第(di)三端(duan) F03斷路。

當電(dian)流輸入端(duan)Iin與電(dian)流輸出端(duan)Iout斷(duan)路時(shi)，限(xian)流子模(mo)塊202的(de)(de)第(di)一端(duan)根(gen)據從控制(zhi)模(mo)塊22接收(shou)到的(de)(de)第(di)三控制(zhi)信(xin)號，將限(xian)流子模(mo)塊202的(de)(de)第(di)二端(duan)F02和第(di)三端(duan)F03導通。

以下，參照圖3所示，對上述實(shi)施例提供(gong)的(de)保護電(dian)路(lu)的(de)工作原理進(jin)行說(shuo)明。

上(shang)述實(shi)施例提(ti)供的(de)保(bao)護(hu)電(dian)(dian)(dian)路在與檢測子(zi)(zi)模(mo)(mo)塊(kuai)(kuai)201的(de)第一端(duan)(duan)E01連接的(de)電(dian)(dian)(dian)流(liu)輸入(ru)端(duan)(duan)Iin輸入(ru)電(dian)(dian)(dian)流(liu)小(xiao)于或等于預設的(de)電(dian)(dian)(dian)流(liu)閾(yu)值(zhi)時，檢測子(zi)(zi)模(mo)(mo)塊(kuai)(kuai)E01的(de)第一端(duan)(duan)E01與第三(san)端(duan)(duan)E03之(zhi)間(jian)導(dao)通(tong)，限流(liu)子(zi)(zi)模(mo)(mo)塊(kuai)(kuai)20的(de)第三(san)端(duan)(duan)F03與第二端(duan)(duan)F02根據控制模(mo)(mo)塊(kuai)(kuai)22發送的(de)第四(si)控制信號導(dao)通(tong)，因此電(dian)(dian)(dian)流(liu)輸入(ru)端(duan)(duan)Lin與電(dian)(dian)(dian)流(liu)輸出(chu)端(duan)(duan)Iout之(zhi)間(jian)導(dao)通(tong)。

當與檢(jian)測(ce)子(zi)模(mo)(mo)(mo)塊(kuai)201的(de)(de)(de)(de)(de)第(di)一(yi)端(duan)E01連接的(de)(de)(de)(de)(de)電(dian)(dian)流(liu)(liu)輸(shu)入端(duan)Iin輸(shu)入電(dian)(dian)流(liu)(liu)大于(yu)預設的(de)(de)(de)(de)(de)電(dian)(dian)流(liu)(liu)閾(yu)(yu)值(zhi)時，檢(jian)測(ce)子(zi)模(mo)(mo)(mo)塊(kuai)201根據檢(jian)測(ce)到(dao)的(de)(de)(de)(de)(de)電(dian)(dian)流(liu)(liu)從檢(jian)測(ce)子(zi)模(mo)(mo)(mo)塊(kuai)201的(de)(de)(de)(de)(de)第(di)二端(duan)E02向控制(zhi)模(mo)(mo)(mo)塊(kuai)22輸(shu)出第(di)一(yi)控制(zhi)信號；控制(zhi)模(mo)(mo)(mo)塊(kuai)22根據接收到(dao)的(de)(de)(de)(de)(de)第(di)一(yi)控制(zhi)信號，向限流(liu)(liu)子(zi)模(mo)(mo)(mo)塊(kuai)202的(de)(de)(de)(de)(de)第(di)一(yi)端(duan)F01輸(shu)出第(di)二控制(zhi)信號；限流(liu)(liu)子(zi)模(mo)(mo)(mo)塊(kuai)202根據接收到(dao)的(de)(de)(de)(de)(de)第(di)二控制(zhi)信號，將限流(liu)(liu)子(zi)模(mo)(mo)(mo)塊(kuai)202的(de)(de)(de)(de)(de)第(di)三端(duan)F03與第(di)二端(duan)F02斷路(lu)(lu)，進而(er)使電(dian)(dian)流(liu)(liu)輸(shu)入端(duan)Iin與電(dian)(dian)流(liu)(liu)輸(shu)出端(duan)Iout之間(jian)斷路(lu)(lu)，避免大于(yu)預設的(de)(de)(de)(de)(de)電(dian)(dian)流(liu)(liu)閾(yu)(yu)值(zhi)的(de)(de)(de)(de)(de)電(dian)(dian)流(liu)(liu)通過電(dian)(dian)流(liu)(liu)輸(shu)出端(duan)Iout輸(shu)出，從而(er)使與保護(hu)電(dian)(dian)路(lu)(lu)串(chuan)聯在同(tong)一(yi)個(ge)回(hui)(hui)路(lu)(lu)中(zhong)的(de)(de)(de)(de)(de)用電(dian)(dian)設備避免因電(dian)(dian)流(liu)(liu)過大而(er)損毀，并且不(bu)造成回(hui)(hui)路(lu)(lu)上(shang)的(de)(de)(de)(de)(de)器件(jian)損壞，無需更(geng)換回(hui)(hui)路(lu)(lu)上(shang)的(de)(de)(de)(de)(de)器件(jian)。

當電(dian)(dian)流(liu)(liu)(liu)輸入(ru)端(duan)(duan)(duan)Iin與(yu)(yu)電(dian)(dian)流(liu)(liu)(liu)輸出(chu)端(duan)(duan)(duan)Iout之間(jian)斷路(lu)(lu)(lu)時(shi)，控(kong)制(zhi)模(mo)(mo)塊(kuai)22向限流(liu)(liu)(liu)子(zi)模(mo)(mo)塊(kuai)202的(de)(de)(de)第一端(duan)(duan)(duan)F01周期性的(de)(de)(de)輸出(chu)第三控(kong)制(zhi)信號，限流(liu)(liu)(liu)子(zi)模(mo)(mo)塊(kuai)202根據接(jie)收到(dao)(dao)的(de)(de)(de)第三控(kong)制(zhi)信號將限流(liu)(liu)(liu)子(zi)模(mo)(mo)塊(kuai)202的(de)(de)(de)第三端(duan)(duan)(duan)F03與(yu)(yu)第二端(duan)(duan)(duan)F02導通(tong)，如果此時(shi)檢(jian)(jian)測(ce)子(zi)模(mo)(mo)塊(kuai)201檢(jian)(jian)測(ce)到(dao)(dao)電(dian)(dian)流(liu)(liu)(liu)輸入(ru)端(duan)(duan)(duan)Iin輸入(ru)檢(jian)(jian)測(ce)子(zi)模(mo)(mo)塊(kuai)201的(de)(de)(de)第一端(duan)(duan)(duan)E01的(de)(de)(de)電(dian)(dian)流(liu)(liu)(liu)大于(yu)(yu)預設(she)(she)的(de)(de)(de)電(dian)(dian)流(liu)(liu)(liu)閾(yu)值時(shi)，則重復(fu)上述步驟，使(shi)電(dian)(dian)流(liu)(liu)(liu)輸入(ru)端(duan)(duan)(duan)Iin與(yu)(yu)電(dian)(dian)流(liu)(liu)(liu)輸出(chu)端(duan)(duan)(duan)Iout之間(jian)斷路(lu)(lu)(lu)，從而(er)(er)避免(mian)大于(yu)(yu)預設(she)(she)的(de)(de)(de)電(dian)(dian)流(liu)(liu)(liu)閾(yu)值的(de)(de)(de)電(dian)(dian)流(liu)(liu)(liu)通(tong)過(guo)電(dian)(dian)流(liu)(liu)(liu)輸出(chu)端(duan)(duan)(duan)Iout輸出(chu)，并使(shi)恢(hui)復(fu)到(dao)(dao)小(xiao)于(yu)(yu)或等于(yu)(yu)預設(she)(she)的(de)(de)(de)電(dian)(dian)流(liu)(liu)(liu)閾(yu)值的(de)(de)(de)電(dian)(dian)流(liu)(liu)(liu)能夠通(tong)過(guo)電(dian)(dian)流(liu)(liu)(liu)輸出(chu)端(duan)(duan)(duan)Iout輸出(chu)，從而(er)(er)使(shi)串聯有供電(dian)(dian)設(she)(she)備(bei)(bei)、保護(hu)電(dian)(dian)路(lu)(lu)(lu)、用電(dian)(dian)設(she)(she)備(bei)(bei)的(de)(de)(de)回路(lu)(lu)(lu)在因電(dian)(dian)流(liu)(liu)(liu)過(guo)大而(er)(er)使(shi)保護(hu)電(dian)(dian)路(lu)(lu)(lu)將用電(dian)(dian)設(she)(she)備(bei)(bei)與(yu)(yu)供電(dian)(dian)設(she)(she)備(bei)(bei)斷路(lu)(lu)(lu)后(hou)，能夠在電(dian)(dian)流(liu)(liu)(liu)恢(hui)復(fu)到(dao)(dao)正常范 圍時(shi)恢(hui)復(fu)電(dian)(dian)路(lu)(lu)(lu)導通(tong)，從而(er)(er)節(jie)省了成本和人力(li)資源。

具(ju)體的，參照(zhao)圖4所(suo)示，上述(shu)實施例提(ti)供的檢測子(zi)模塊201包括：第一(yi)電阻(zu)單(dan)(dan)元R1、第二電阻(zu)單(dan)(dan)元R2、第三電阻(zu)單(dan)(dan)元R3、第四(si)電阻(zu)單(dan)(dan)元R4、第五電阻(zu)單(dan)(dan)元R5、第一(yi)開關(guan)單(dan)(dan)元Q1、第二開關(guan)單(dan)(dan)元Q2。

第一電阻(zu)單(dan)元R1的(de)第一端(duan)連接檢測子(zi)模塊201的(de)第一端(duan)E01，所述(shu)第一電阻(zu)單(dan)元R1的(de)第二端(duan)連接所述(shu)檢測子(zi)模塊201的(de)第三端(duan)E03。

第(di)二電阻(zu)單(dan)元(yuan)R2的(de)(de)第(di)一(yi)端連接檢測(ce)子(zi)模塊(kuai)201的(de)(de)第(di)一(yi)端E01，第(di)三(san)電阻(zu)單(dan)元(yuan)R3的(de)(de)第(di)一(yi)端連接第(di)二電阻(zu)單(dan)元(yuan)R2的(de)(de)第(di)二端，第(di)三(san)電阻(zu)單(dan)元(yuan)R3的(de)(de)第(di)二端連接至檢測(ce)子(zi)模塊(kuai)201的(de)(de)第(di)三(san)端E03。

第一(yi)(yi)開(kai)關(guan)(guan)單(dan)元R1的(de)(de)第一(yi)(yi)端(duan)(duan)(duan)連(lian)接檢測子模塊201的(de)(de)第一(yi)(yi)端(duan)(duan)(duan)E01，第一(yi)(yi)開(kai)關(guan)(guan)單(dan)元Q1的(de)(de)第二(er)端(duan)(duan)(duan)連(lian)接第四(si)電阻單(dan)元R4的(de)(de)第一(yi)(yi)端(duan)(duan)(duan)，第一(yi)(yi)開(kai)關(guan)(guan)單(dan)元Q1的(de)(de)控制端(duan)(duan)(duan)連(lian)接第二(er)電阻單(dan)元R2的(de)(de)第二(er)端(duan)(duan)(duan)。

第(di)四電阻(zu)單(dan)元R4的(de)(de)第(di)一端連接第(di)一開關單(dan)元Q1的(de)(de)第(di)二(er)端，第(di)四電阻(zu)單(dan)元R4的(de)(de)第(di)二(er)端連接第(di)二(er)開關單(dan)元Q2的(de)(de)控(kong)制端。

第(di)五電阻單(dan)(dan)元R5的(de)(de)第(di)一端連接(jie)第(di)二(er)(er)開關單(dan)(dan)元Q2的(de)(de)控(kong)制端，第(di)五電阻單(dan)(dan)元R5的(de)(de)第(di)二(er)(er)端連接(jie)檢測(ce)模(mo)塊201的(de)(de)第(di)二(er)(er)端E02。

第(di)二開(kai)(kai)關單元Q2的(de)第(di)一端連接(jie)控制模(mo)塊22，第(di)二開(kai)(kai)關單元Q2的(de)第(di)二端連接(jie)檢測模(mo)塊201的(de)第(di)二端E02。

以下，參照圖4所示，對上述實施例(li)提供的檢(jian)測子模塊201的工作原理(li)進行(xing)說明(ming)。

當與檢測子模(mo)塊201的(de)第(di)(di)一(yi)端(duan)(duan)E01連接的(de)電(dian)(dian)(dian)流輸入(ru)(ru)端(duan)(duan)Iin輸入(ru)(ru)電(dian)(dian)(dian)流小于(yu)或(huo)等(deng)于(yu)預設的(de)電(dian)(dian)(dian)流閾值時，加(jia)載(zai)在第(di)(di)一(yi)電(dian)(dian)(dian)阻(zu)單(dan)(dan)元(yuan)(yuan)R1上的(de)電(dian)(dian)(dian)壓(ya)與加(jia)載(zai)在第(di)(di)二電(dian)(dian)(dian)阻(zu)單(dan)(dan)元(yuan)(yuan)R2和第(di)(di)三電(dian)(dian)(dian)阻(zu)單(dan)(dan)元(yuan)(yuan)R3上的(de)總電(dian)(dian)(dian)壓(ya)相同，加(jia)載(zai)在開(kai)(kai)關單(dan)(dan)元(yuan)(yuan)Q1第(di)(di)一(yi)端(duan)(duan)與控制端(duan)(duan)間的(de)電(dian)(dian)(dian)壓(ya)小于(yu)或(huo)等(deng)于(yu)第(di)(di)一(yi)開(kai)(kai)關單(dan)(dan)元(yuan)(yuan)的(de)開(kai)(kai)啟(qi)電(dian)(dian)(dian)壓(ya)，第(di)(di)一(yi)開(kai)(kai)關單(dan)(dan)元(yuan)(yuan)Q1的(de)第(di)(di)一(yi)端(duan)(duan)與第(di)(di)二端(duan)(duan)斷路。

當與檢(jian)(jian)測(ce)子模塊201的(de)(de)(de)(de)(de)第(di)(di)一(yi)(yi)(yi)端(duan)(duan)E01連(lian)接的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)輸(shu)入(ru)端(duan)(duan)Iin輸(shu)入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)大于預(yu)設的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)閾值(zhi)時，加(jia)載(zai)在(zai)(zai)第(di)(di)一(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)R1上的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)與加(jia)載(zai)在(zai)(zai)第(di)(di)二電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)R2和第(di)(di)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)R3上的(de)(de)(de)(de)(de)總電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)相同(tong)，加(jia)載(zai)在(zai)(zai)第(di)(di)一(yi)(yi)(yi)開(kai)(kai)(kai)(kai)關(guan)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)Q1第(di)(di)一(yi)(yi)(yi)端(duan)(duan)與控(kong)制(zhi)端(duan)(duan)間的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)等于加(jia)載(zai)在(zai)(zai)第(di)(di)二電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)R2上的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，加(jia)載(zai)在(zai)(zai)第(di)(di)一(yi)(yi)(yi)開(kai)(kai)(kai)(kai)關(guan)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)Q1第(di)(di)一(yi)(yi)(yi)端(duan)(duan)與控(kong)制(zhi)端(duan)(duan)間的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)大于第(di)(di)一(yi)(yi)(yi)開(kai)(kai)(kai)(kai)關(guan) 單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)Q1的(de)(de)(de)(de)(de)開(kai)(kai)(kai)(kai)啟電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，第(di)(di)一(yi)(yi)(yi)開(kai)(kai)(kai)(kai)關(guan)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)Q1的(de)(de)(de)(de)(de)第(di)(di)一(yi)(yi)(yi)端(duan)(duan)與第(di)(di)二端(duan)(duan)導通(tong)(tong)；其中，在(zai)(zai)第(di)(di)一(yi)(yi)(yi)開(kai)(kai)(kai)(kai)關(guan)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)Q1的(de)(de)(de)(de)(de)第(di)(di)一(yi)(yi)(yi)端(duan)(duan)與控(kong)制(zhi)端(duan)(duan)之間串(chuan)聯第(di)(di)二電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)R2，在(zai)(zai)第(di)(di)一(yi)(yi)(yi)開(kai)(kai)(kai)(kai)關(guan)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)Q1的(de)(de)(de)(de)(de)控(kong)制(zhi)端(duan)(duan)與檢(jian)(jian)測(ce)子模塊201的(de)(de)(de)(de)(de)第(di)(di)三(san)端(duan)(duan)E03間串(chuan)聯第(di)(di)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)R3；通(tong)(tong)過靈活設置第(di)(di)二電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)R2、第(di)(di)三(san)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)單(dan)(dan)元(yuan)(yuan)(yuan)(yuan)(yuan)R3的(de)(de)(de)(de)(de)阻(zu)(zu)值(zhi)比(bi)例(li)，可(ke)(ke)以根據與保護回路在(zai)(zai)同(tong)一(yi)(yi)(yi)回路內的(de)(de)(de)(de)(de)用電(dian)(dian)(dian)(dian)(dian)(dian)設備的(de)(de)(de)(de)(de)參數、性質或需求，使上述實(shi)施例(li)中預(yu)設的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)閾值(zhi)在(zai)(zai)不同(tong)的(de)(de)(de)(de)(de)范圍間進行調(diao)(diao)整，示例(li)性的(de)(de)(de)(de)(de)，該保護電(dian)(dian)(dian)(dian)(dian)(dian)路預(yu)設的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)閾值(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)可(ke)(ke)以為(wei)5A，當然若需要(yao)將保護電(dian)(dian)(dian)(dian)(dian)(dian)路預(yu)設的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)閾值(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)調(diao)(diao)整為(wei)10A時，可(ke)(ke)以通(tong)(tong)過調(diao)(diao)整R2和R3的(de)(de)(de)(de)(de)比(bi)值(zhi)實(shi)現，例(li)如通(tong)(tong)過調(diao)(diao)整R2和R3的(de)(de)(de)(de)(de)比(bi)值(zhi)使得將R2的(de)(de)(de)(de)(de)分壓(ya)(ya)調(diao)(diao)整為(wei)原(yuan)來的(de)(de)(de)(de)(de)二分之一(yi)(yi)(yi)。

當第(di)(di)(di)(di)一(yi)開(kai)(kai)關(guan)單元Q1的(de)(de)(de)(de)第(di)(di)(di)(di)二(er)(er)(er)端(duan)(duan)向(xiang)第(di)(di)(di)(di)四(si)(si)電(dian)(dian)阻R4的(de)(de)(de)(de)第(di)(di)(di)(di)一(yi)端(duan)(duan)輸(shu)出電(dian)(dian)流時，此時通(tong)過(guo)第(di)(di)(di)(di)四(si)(si)電(dian)(dian)阻單元R4上(shang)的(de)(de)(de)(de)電(dian)(dian)流與(yu)通(tong)過(guo)第(di)(di)(di)(di)五電(dian)(dian)阻單元R5的(de)(de)(de)(de)電(dian)(dian)流相同(tong)，而加載在(zai)第(di)(di)(di)(di)二(er)(er)(er)開(kai)(kai)關(guan)單元Q2的(de)(de)(de)(de)控制端(duan)(duan)與(yu)第(di)(di)(di)(di)二(er)(er)(er)端(duan)(duan)間的(de)(de)(de)(de)電(dian)(dian)壓(ya)與(yu)加載在(zai)第(di)(di)(di)(di)五電(dian)(dian)阻R5上(shang)的(de)(de)(de)(de)電(dian)(dian)壓(ya)相同(tong)，當第(di)(di)(di)(di)二(er)(er)(er)開(kai)(kai)關(guan)單元Q2的(de)(de)(de)(de)控制端(duan)(duan)與(yu)第(di)(di)(di)(di)二(er)(er)(er)端(duan)(duan)間的(de)(de)(de)(de)電(dian)(dian)壓(ya)大于第(di)(di)(di)(di)二(er)(er)(er)開(kai)(kai)關(guan)單元Q2的(de)(de)(de)(de)開(kai)(kai)啟(qi)電(dian)(dian)壓(ya)時，第(di)(di)(di)(di)二(er)(er)(er)開(kai)(kai)關(guan)單元Q2的(de)(de)(de)(de)第(di)(di)(di)(di)一(yi)端(duan)(duan)與(yu)第(di)(di)(di)(di)二(er)(er)(er)端(duan)(duan)導通(tong)，第(di)(di)(di)(di)二(er)(er)(er)開(kai)(kai)關(guan)單元Q2的(de)(de)(de)(de)第(di)(di)(di)(di)一(yi)端(duan)(duan)向(xiang)檢測模(mo)塊201的(de)(de)(de)(de)第(di)(di)(di)(di)四(si)(si)端(duan)(duan)口輸(shu)出第(di)(di)(di)(di)一(yi)控制信(xin)號，在(zai)本實施例中第(di)(di)(di)(di)一(yi)控制信(xin)號為低壓(ya)信(xin)號。

從而本實施例(li)中(zhong)的(de)保護回(hui)路在電(dian)(dian)流(liu)(liu)(liu)(liu)輸(shu)入端Iin輸(shu)入的(de)電(dian)(dian)流(liu)(liu)(liu)(liu)大于預設(she)的(de)電(dian)(dian)流(liu)(liu)(liu)(liu)閾值時，向(xiang)控(kong)制模(mo)塊22發送第一控(kong)制信號(hao)，從而使控(kong)制模(mo)塊22向(xiang)限流(liu)(liu)(liu)(liu)模(mo)塊202發送第二控(kong)制信號(hao)，將電(dian)(dian)流(liu)(liu)(liu)(liu)輸(shu)入端Iin與電(dian)(dian)流(liu)(liu)(liu)(liu)輸(shu)出端Iout斷路，避免(mian)大于預設(she)的(de)電(dian)(dian)流(liu)(liu)(liu)(liu)閾值的(de)電(dian)(dian)流(liu)(liu)(liu)(liu)通(tong)過電(dian)(dian)流(liu)(liu)(liu)(liu)輸(shu)出端Iout輸(shu)出，從而使與保護電(dian)(dian)路串聯在同一個回(hui)路中(zhong)的(de)用電(dian)(dian)設(she)備避免(mian)因電(dian)(dian)流(liu)(liu)(liu)(liu)過大而損毀，并且(qie)不造成回(hui)路上(shang)的(de)器件損壞，無(wu)需(xu)更換(huan)回(hui)路上(shang)的(de)器件。

具體的(de)，參照圖4所示(shi)，上(shang)述(shu)實施例提供的(de)限流子模塊202包(bao)括：第六(liu)電(dian)阻(zu)(zu)單(dan)(dan)元(yuan)R6、第七電(dian)阻(zu)(zu)單(dan)(dan)元(yuan)R7、第八電(dian)阻(zu)(zu)單(dan)(dan)元(yuan)R8、第九電(dian)阻(zu)(zu)單(dan)(dan)元(yuan)R9、第三開關(guan)單(dan)(dan)元(yuan)Q3、第四(si)開關(guan)單(dan)(dan)元(yuan)Q4；

第六電(dian)(dian)阻(zu)單(dan)(dan)元(yuan)(yuan)R6的(de)第一端(duan)連接(jie)限流子模塊(kuai)202的(de)第一端(duan)F01，第六電(dian)(dian)阻(zu)單(dan)(dan)元(yuan)(yuan)R6的(de)第二端(duan)連接(jie)第三開關單(dan)(dan)元(yuan)(yuan)Q3的(de)控制端(duan)；

第(di)(di)七(qi)電阻(zu)(zu)單元R7的(de)第(di)(di)一(yi)端(duan)(duan)連(lian)接(jie)第(di)(di)三開(kai)關單元的(de)控制端(duan)(duan)，第(di)(di)七(qi)電阻(zu)(zu)單元R7的(de)第(di)(di)二(er)(er)端(duan)(duan)連(lian)接(jie)第(di)(di)三開(kai)關單元Q3的(de)第(di)(di)二(er)(er)端(duan)(duan)；

第(di)(di)(di)三開關單(dan)元(yuan)Q3的(de)(de)第(di)(di)(di)一(yi)端(duan)連接(jie)第(di)(di)(di)八電阻(zu)單(dan)元(yuan)R8的(de)(de)第(di)(di)(di)一(yi)端(duan)，第(di)(di)(di)三開關單(dan)元(yuan)Q3的(de)(de)第(di)(di)(di)二端(duan)連接(jie)限流(liu)子模塊202的(de)(de)第(di)(di)(di)四(si)端(duan)F04；

第八電阻單元R8的(de)第二端(duan)連(lian)接(jie)第四開關單元Q4的(de)控制端(duan)；

第(di)九(jiu)電阻單(dan)元(yuan)R9的(de)第(di)一端(duan)(duan)連接第(di)四開關單(dan)元(yuan)Q4的(de)控制端(duan)(duan)，第(di)九(jiu)電阻單(dan)元(yuan)R9的(de)第(di)二端(duan)(duan)連接限流子模(mo)塊202的(de)第(di)一端(duan)(duan)F01；

第(di)四開關單元(yuan)Q4的(de)第(di)一端連接(jie)限流子模(mo)塊202的(de)第(di)一端F01，第(di)四開關單元(yuan)Q4的(de)第(di)二端連接(jie)限流子模(mo)塊202的(de)第(di)二端。

以下，參照圖4所示。對(dui)上述實施例提供的限流子模塊202的工作原理(li)進行說明。

當控(kong)制(zhi)(zhi)模(mo)塊(kuai)22向與(yu)(yu)控(kong)制(zhi)(zhi)模(mo)塊(kuai)22連接(jie)(jie)的(de)(de)(de)(de)限流(liu)子模(mo)塊(kuai)202的(de)(de)(de)(de)第(di)(di)一(yi)端(duan)(duan)(duan)(duan)(duan)F01輸入(ru)第(di)(di)四控(kong)制(zhi)(zhi)信(xin)(xin)號時(shi)，第(di)(di)四控(kong)制(zhi)(zhi)信(xin)(xin)號通(tong)過第(di)(di)六電阻單(dan)(dan)(dan)(dan)元R6加載第(di)(di)三(san)(san)開(kai)(kai)(kai)關(guan)(guan)單(dan)(dan)(dan)(dan)元Q3的(de)(de)(de)(de)控(kong)制(zhi)(zhi)端(duan)(duan)(duan)(duan)(duan)上，在本實施例中第(di)(di)四控(kong)制(zhi)(zhi)信(xin)(xin)號為高壓(ya)，其中，R6和(he)R7的(de)(de)(de)(de)作用(yong)與(yu)(yu)R4和(he)R5類似這里(li)不(bu)再贅述，當第(di)(di)三(san)(san)開(kai)(kai)(kai)關(guan)(guan)單(dan)(dan)(dan)(dan)元Q3的(de)(de)(de)(de)第(di)(di)一(yi)端(duan)(duan)(duan)(duan)(duan)與(yu)(yu)第(di)(di)二端(duan)(duan)(duan)(duan)(duan)導(dao)(dao)通(tong)，第(di)(di)四開(kai)(kai)(kai)關(guan)(guan)單(dan)(dan)(dan)(dan)元Q4的(de)(de)(de)(de)控(kong)制(zhi)(zhi)端(duan)(duan)(duan)(duan)(duan)通(tong)過第(di)(di)八電阻單(dan)(dan)(dan)(dan)元R8及第(di)(di)三(san)(san)開(kai)(kai)(kai)關(guan)(guan)單(dan)(dan)(dan)(dan)元Q3與(yu)(yu)限流(liu)子模(mo)塊(kuai)202的(de)(de)(de)(de)第(di)(di)四端(duan)(duan)(duan)(duan)(duan)F04導(dao)(dao)通(tong)，即第(di)(di)四開(kai)(kai)(kai)關(guan)(guan)單(dan)(dan)(dan)(dan)元Q4的(de)(de)(de)(de)控(kong)制(zhi)(zhi)端(duan)(duan)(duan)(duan)(duan)接(jie)(jie)地即處于低壓(ya)，使第(di)(di)四開(kai)(kai)(kai)關(guan)(guan)單(dan)(dan)(dan)(dan)元Q4的(de)(de)(de)(de)第(di)(di)一(yi)端(duan)(duan)(duan)(duan)(duan)與(yu)(yu)第(di)(di)二端(duan)(duan)(duan)(duan)(duan)導(dao)(dao)通(tong)，從(cong)而使限流(liu)子模(mo)塊(kuai)202在接(jie)(jie)到從(cong)第(di)(di)一(yi)端(duan)(duan)(duan)(duan)(duan)F01輸入(ru)的(de)(de)(de)(de)第(di)(di)四控(kong)制(zhi)(zhi)信(xin)(xin)號后，將限流(liu)子模(mo)塊(kuai)202的(de)(de)(de)(de)第(di)(di)三(san)(san)端(duan)(duan)(duan)(duan)(duan)F03與(yu)(yu)第(di)(di)二端(duan)(duan)(duan)(duan)(duan)F02導(dao)(dao)通(tong)。

當控制(zhi)模塊22向與(yu)控制(zhi)模塊22連接(jie)的(de)(de)限流子模塊202的(de)(de)第(di)(di)一端(duan)(duan)(duan)(duan)(duan)F01輸(shu)入(ru)第(di)(di)二(er)(er)(er)(er)控制(zhi)信號，第(di)(di)二(er)(er)(er)(er)控制(zhi)信號通過(guo)第(di)(di)六電阻單(dan)元(yuan)R6加載到第(di)(di)三開關單(dan)元(yuan)Q3的(de)(de)控制(zhi)端(duan)(duan)(duan)(duan)(duan)上，在本實施(shi)例中(zhong)第(di)(di)二(er)(er)(er)(er)控制(zhi)信號為低壓，使(shi)(shi)第(di)(di)三開關單(dan)元(yuan)Q3的(de)(de)第(di)(di)一端(duan)(duan)(duan)(duan)(duan)與(yu)第(di)(di)二(er)(er)(er)(er)端(duan)(duan)(duan)(duan)(duan)斷路，第(di)(di)四(si)開關單(dan)元(yuan)Q4的(de)(de)控制(zhi)端(duan)(duan)(duan)(duan)(duan)浮接(jie)，使(shi)(shi)第(di)(di)四(si)開關單(dan)元(yuan)Q4的(de)(de)第(di)(di)一端(duan)(duan)(duan)(duan)(duan)與(yu)第(di)(di)二(er)(er)(er)(er)端(duan)(duan)(duan)(duan)(duan)斷路，將限流子模塊202的(de)(de)第(di)(di)三端(duan)(duan)(duan)(duan)(duan)F03與(yu)第(di)(di)二(er)(er)(er)(er)端(duan)(duan)(duan)(duan)(duan)F02斷路。

當第(di)(di)(di)(di)(di)(di)(di)四開(kai)(kai)關單(dan)(dan)(dan)元(yuan)(yuan)Q4的(de)第(di)(di)(di)(di)(di)(di)(di)一(yi)端(duan)與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)端(duan)處于斷路狀態時，控(kong)(kong)制(zhi)(zhi)模(mo)(mo)塊(kuai)22還周期性向(xiang)與(yu)控(kong)(kong)制(zhi)(zhi)模(mo)(mo)塊(kuai)22連接的(de)限(xian)流子(zi)(zi)模(mo)(mo)塊(kuai)202的(de)第(di)(di)(di)(di)(di)(di)(di)一(yi)端(duan)F01輸(shu)(shu)入(ru)第(di)(di)(di)(di)(di)(di)(di)三控(kong)(kong)制(zhi)(zhi)信號(hao)(hao)，在(zai)本(ben)實施例中第(di)(di)(di)(di)(di)(di)(di)三控(kong)(kong)制(zhi)(zhi)信號(hao)(hao)表(biao)現為高壓(ya)，使第(di)(di)(di)(di)(di)(di)(di)三開(kai)(kai)關單(dan)(dan)(dan)元(yuan)(yuan)Q3的(de)第(di)(di)(di)(di)(di)(di)(di)一(yi)端(duan)與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)端(duan)導(dao)(dao)通(tong)(tong)(tong)，第(di)(di)(di)(di)(di)(di)(di)四開(kai)(kai)關單(dan)(dan)(dan)元(yuan)(yuan)Q4的(de)控(kong)(kong)制(zhi)(zhi)端(duan)通(tong)(tong)(tong)過第(di)(di)(di)(di)(di)(di)(di)八(ba)電阻單(dan)(dan)(dan)元(yuan)(yuan)R8及(ji)第(di)(di)(di)(di)(di)(di)(di)三開(kai)(kai)關單(dan)(dan)(dan)元(yuan)(yuan)Q3與(yu)限(xian)流子(zi)(zi)模(mo)(mo)塊(kuai)202的(de)第(di)(di)(di)(di)(di)(di)(di)四端(duan)F04導(dao)(dao)通(tong)(tong)(tong)，即第(di)(di)(di)(di)(di)(di)(di)四開(kai)(kai)關單(dan)(dan)(dan)元(yuan)(yuan)Q4的(de)控(kong)(kong)制(zhi)(zhi)端(duan)通(tong)(tong)(tong)過R8與(yu)接地導(dao)(dao)通(tong)(tong)(tong)并(bing)處于低壓(ya)，使第(di)(di)(di)(di)(di)(di)(di)四 開(kai)(kai)關單(dan)(dan)(dan)元(yuan)(yuan)Q4的(de)第(di)(di)(di)(di)(di)(di)(di)一(yi)端(duan)與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)端(duan)導(dao)(dao)通(tong)(tong)(tong)，從而(er)使限(xian)流子(zi)(zi)模(mo)(mo)塊(kuai)202在(zai)接到從第(di)(di)(di)(di)(di)(di)(di)一(yi)端(duan)F01輸(shu)(shu)入(ru)的(de)第(di)(di)(di)(di)(di)(di)(di)二(er)控(kong)(kong)制(zhi)(zhi)信號(hao)(hao)后，將限(xian)流子(zi)(zi)模(mo)(mo)塊(kuai)202的(de)第(di)(di)(di)(di)(di)(di)(di)三端(duan)F03與(yu)第(di)(di)(di)(di)(di)(di)(di)二(er)端(duan)F02導(dao)(dao)通(tong)(tong)(tong)。

本實(shi)施(shi)例在(zai)控制(zhi)模(mo)(mo)塊(kuai)(kuai)向(xiang)(xiang)與(yu)控制(zhi)模(mo)(mo)塊(kuai)(kuai)連(lian)接的限(xian)流(liu)(liu)(liu)子模(mo)(mo)塊(kuai)(kuai)的第(di)一端(duan)(duan)F01輸(shu)(shu)(shu)(shu)入(ru)第(di)二(er)控制(zhi)信號(hao)時(shi)(shi)，將電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)端(duan)(duan)Iin與(yu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出端(duan)(duan)Iout斷(duan)路(lu)(lu)(lu)；在(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)端(duan)(duan)Iin與(yu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出端(duan)(duan)Iout斷(duan)路(lu)(lu)(lu)并(bing)且控制(zhi)模(mo)(mo)塊(kuai)(kuai)向(xiang)(xiang)與(yu)控制(zhi)模(mo)(mo)塊(kuai)(kuai)連(lian)接的限(xian)流(liu)(liu)(liu)子模(mo)(mo)塊(kuai)(kuai)的第(di)一端(duan)(duan)F01輸(shu)(shu)(shu)(shu)入(ru)第(di)三控制(zhi)信號(hao)時(shi)(shi)，將電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)入(ru)端(duan)(duan)Iin與(yu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出端(duan)(duan)Iout導通，從而避免大于(yu)(yu)預(yu)設(she)的電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)閾值的電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)通過電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出端(duan)(duan)Iout輸(shu)(shu)(shu)(shu)出，使(shi)(shi)與(yu)保(bao)(bao)護電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)串(chuan)(chuan)聯在(zai)同一個回(hui)(hui)(hui)路(lu)(lu)(lu)中的用電(dian)(dian)(dian)(dian)設(she)備(bei)避免因(yin)(yin)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)過大而損毀，并(bing)且不(bu)造成回(hui)(hui)(hui)路(lu)(lu)(lu)上的器(qi)件損壞，無需更(geng)換回(hui)(hui)(hui)路(lu)(lu)(lu)上的器(qi)件；同時(shi)(shi)本實(shi)施(shi)例使(shi)(shi)恢復(fu)(fu)到(dao)小于(yu)(yu)或等(deng)于(yu)(yu)預(yu)設(she)的電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)閾值的電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)能夠通過電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)輸(shu)(shu)(shu)(shu)出端(duan)(duan)Iout輸(shu)(shu)(shu)(shu)出，使(shi)(shi)串(chuan)(chuan)聯有供電(dian)(dian)(dian)(dian)設(she)備(bei)、保(bao)(bao)護電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)、用電(dian)(dian)(dian)(dian)設(she)備(bei)的回(hui)(hui)(hui)路(lu)(lu)(lu)在(zai)因(yin)(yin)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)過大而使(shi)(shi)保(bao)(bao)護電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)將用電(dian)(dian)(dian)(dian)設(she)備(bei)與(yu)供電(dian)(dian)(dian)(dian)設(she)備(bei)斷(duan)路(lu)(lu)(lu)后(hou)，能夠在(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)恢復(fu)(fu)到(dao)正(zheng)常范(fan)圍(wei)時(shi)(shi)恢復(fu)(fu)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)導通，從而節省了成本和人力資源(yuan)。

具體的(de)(de)，參照圖5所示，上述(shu)實施例(li)提供的(de)(de)檢測子(zi)模塊201還包(bao)括(kuo)：連(lian)接于第(di)(di)(di)三電(dian)阻(zu)單(dan)元R3的(de)(de)第(di)(di)(di)二(er)(er)端(duan)(duan)和檢測子(zi)模塊201的(de)(de)第(di)(di)(di)三端(duan)(duan)E03之(zhi)間的(de)(de)第(di)(di)(di)一(yi)(yi)二(er)(er)極管D1，第(di)(di)(di)一(yi)(yi)二(er)(er)極管D1的(de)(de)陽(yang)極連(lian)接第(di)(di)(di)三電(dian)阻(zu)單(dan)元R3的(de)(de)第(di)(di)(di)二(er)(er)端(duan)(duan)，第(di)(di)(di)一(yi)(yi)二(er)(er)極管D1的(de)(de)陰極連(lian)接檢測子(zi)模塊201的(de)(de)第(di)(di)(di)三端(duan)(duan)。

當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)輸(shu)入(ru)端Iin輸(shu)入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)時(shi)(shi)，可能會因(yin)為輸(shu)入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)不穩(wen)定而(er)造成加(jia)載在(zai)第(di)(di)(di)一(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)阻單(dan)元(yuan)R2上的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓不穩(wen)定，從(cong)而(er)使(shi)第(di)(di)(di)一(yi)(yi)開關(guan)單(dan)元(yuan)Q1的(de)(de)(de)控(kong)制(zhi)(zhi)端上存在(zai)較高(gao)的(de)(de)(de)峰值反向(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)壓，為了(le)避(bi)免(mian)第(di)(di)(di)一(yi)(yi)開關(guan)單(dan)元(yuan)Q1為N型晶體(ti)管(guan)時(shi)(shi)，控(kong)制(zhi)(zhi)端被反向(xiang)高(gao)壓擊穿，在(zai)第(di)(di)(di)三電(dian)(dian)(dian)(dian)(dian)(dian)阻單(dan)元(yuan)R3與檢測子模(mo)塊201的(de)(de)(de)第(di)(di)(di)三端E03間設置第(di)(di)(di)一(yi)(yi)二(er)(er)極管(guan)D1，將(jiang)第(di)(di)(di)三電(dian)(dian)(dian)(dian)(dian)(dian)阻R3的(de)(de)(de)第(di)(di)(di)二(er)(er)端連接第(di)(di)(di)一(yi)(yi)二(er)(er)極管(guan)D1的(de)(de)(de)陽(yang)極，將(jiang)第(di)(di)(di)一(yi)(yi)二(er)(er)極管(guan)D1的(de)(de)(de)陰極連接檢測子模(mo)塊201的(de)(de)(de)第(di)(di)(di)三端E03，從(cong)而(er)限制(zhi)(zhi)通過第(di)(di)(di)二(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)阻單(dan)元(yuan)R2與第(di)(di)(di)三電(dian)(dian)(dian)(dian)(dian)(dian)阻單(dan)元(yuan)R3的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)方向(xiang)，進而(er)避(bi)免(mian)因(yin)第(di)(di)(di)一(yi)(yi)控(kong)制(zhi)(zhi)單(dan)元(yuan)Q1為N型晶體(ti)管(guan)時(shi)(shi)控(kong)制(zhi)(zhi)端被擊穿造成的(de)(de)(de)損壞。

此(ci)外(wai)，上述實施例中穩壓模塊為(wei)第(di)二二極管(guan)D2，第(di)二二極管(guan)D2的(de)陽(yang)極接地(di)，第(di)二二極管(guan)D2的(de)陰極連接電流輸出(chu)端Iout。

當(dang)(dang)電(dian)(dian)(dian)流(liu)(liu)輸(shu)(shu)出(chu)(chu)端(duan)Iout輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)時(shi)，可能所輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)高于(yu)(yu)預設(she)電(dian)(dian)(dian)壓(ya)(ya)值， 使與(yu)(yu)保護電(dian)(dian)(dian)路在(zai)同一個回路中的(de)(de)用(yong)電(dian)(dian)(dian)設(she)備受(shou)到(dao)損害。通過在(zai)電(dian)(dian)(dian)流(liu)(liu)輸(shu)(shu)出(chu)(chu)端(duan)Iout與(yu)(yu)接(jie)(jie)地間設(she)置第(di)二(er)(er)(er)二(er)(er)(er)極管(guan)(guan)D2，設(she)置第(di)二(er)(er)(er)二(er)(er)(er)極管(guan)(guan)D2的(de)(de)反向(xiang)擊穿電(dian)(dian)(dian)壓(ya)(ya)為預設(she)電(dian)(dian)(dian)壓(ya)(ya)值，將(jiang)第(di)二(er)(er)(er)二(er)(er)(er)極管(guan)(guan)D2的(de)(de)陽極接(jie)(jie)地、第(di)二(er)(er)(er)二(er)(er)(er)極管(guan)(guan)D2的(de)(de)陰極連接(jie)(jie)電(dian)(dian)(dian)流(liu)(liu)輸(shu)(shu)出(chu)(chu)端(duan)Iout，當(dang)(dang)電(dian)(dian)(dian)流(liu)(liu)輸(shu)(shu)出(chu)(chu)端(duan)Iout輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)高于(yu)(yu)預設(she)電(dian)(dian)(dian)壓(ya)(ya)值時(shi)，第(di)二(er)(er)(er)二(er)(er)(er)極管(guan)(guan)D2反向(xiang)擊穿，將(jiang)電(dian)(dian)(dian)流(liu)(liu)輸(shu)(shu)出(chu)(chu)端(duan)Iout接(jie)(jie)地，從而維持電(dian)(dian)(dian)流(liu)(liu)輸(shu)(shu)出(chu)(chu)端(duan)的(de)(de)電(dian)(dian)(dian)壓(ya)(ya)維持在(zai)穩(wen)定(ding)的(de)(de)范圍內。

第(di)(di)一電(dian)(dian)阻(zu)(zu)單元R1包括：在檢測子(zi)模塊的(de)第(di)(di)一端(duan)E01和(he)第(di)(di)三(san)端(duan)E03之間串(chuan)(chuan)聯(lian)(lian)有至(zhi)少一條電(dian)(dian)阻(zu)(zu)支(zhi)(zhi)路，其中(zhong)每條所(suo)述電(dian)(dian)阻(zu)(zu)支(zhi)(zhi)路串(chuan)(chuan)聯(lian)(lian)有至(zhi)少一個(ge)電(dian)(dian)阻(zu)(zu)；在本(ben)實施例中(zhong)，第(di)(di)一電(dian)(dian)阻(zu)(zu)單元包括串(chuan)(chuan)聯(lian)(lian)有電(dian)(dian)阻(zu)(zu)R101、電(dian)(dian)阻(zu)(zu)R102的(de)第(di)(di)一支(zhi)(zhi)路與串(chuan)(chuan)聯(lian)(lian)有電(dian)(dian)阻(zu)(zu)R103、電(dian)(dian)阻(zu)(zu)R104的(de)第(di)(di)二支(zhi)(zhi)路，其中(zhong)第(di)(di)一支(zhi)(zhi)路與第(di)(di)二支(zhi)(zhi)路相互并聯(lian)(lian)。

需要說明的(de)是(shi)，上(shang)述實施(shi)例(li)提供了第一電(dian)(dian)阻(zu)(zu)(zu)單元R1包括(kuo)(kuo)由(you)電(dian)(dian)阻(zu)(zu)(zu)R101、電(dian)(dian)阻(zu)(zu)(zu)R102組成(cheng)的(de)第一支路與電(dian)(dian)阻(zu)(zu)(zu)R103、電(dian)(dian)阻(zu)(zu)(zu)R104組成(cheng)的(de)第二支路并(bing)聯的(de)方(fang)(fang)案，但上(shang)述方(fang)(fang)案僅(jin)為本發(fa)明實施(shi)例(li)的(de)一種(zhong)實現方(fang)(fang)式，而(er)并(bing)不能作為對本發(fa)明實施(shi)例(li)的(de)限定，電(dian)(dian)阻(zu)(zu)(zu)單元還(huan)可以包括(kuo)(kuo)兩條(tiao)以上(shang)的(de)并(bing)聯支路、每條(tiao)支路還(huan)可以由(you)兩個以上(shang)的(de)電(dian)(dian)阻(zu)(zu)(zu)組成(cheng)。

如圖5所示(shi)，第(di)(di)二電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)至第(di)(di)九(jiu)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)均為(wei)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器件，其中每個(ge)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)可以僅(jin)包(bao)括(kuo)(kuo)(kuo)一個(ge)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)或(huo)者(zhe)包(bao)括(kuo)(kuo)(kuo)多個(ge)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)的串聯或(huo)并聯形式(shi)，示(shi)例性(xing)的第(di)(di)二電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)R1包(bao)括(kuo)(kuo)(kuo)：電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R205；第(di)(di)三電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)包(bao)括(kuo)(kuo)(kuo)：電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R306；第(di)(di)四電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)R4包(bao)括(kuo)(kuo)(kuo)：電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R407；第(di)(di)五電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)R5包(bao)括(kuo)(kuo)(kuo)：電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R508；第(di)(di)六電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)R6包(bao)括(kuo)(kuo)(kuo)：電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R609；第(di)(di)七(qi)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)包(bao)括(kuo)(kuo)(kuo)：電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R710；第(di)(di)八電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)包(bao)括(kuo)(kuo)(kuo)：電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R811；第(di)(di)九(jiu)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)包(bao)括(kuo)(kuo)(kuo)：電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R912；開(kai)關(guan)單(dan)(dan)(dan)(dan)(dan)元(yuan)(yuan)(yuan)Q1-Q4均為(wei)開(kai)關(guan)晶(jing)體管(guan)(guan)；Q1、Q4為(wei)N型(xing)開(kai)關(guan)晶(jing)體管(guan)(guan)，Q2、Q3為(wei)P型(xing)開(kai)關(guan)晶(jing)體管(guan)(guan)。

其中(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R205、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R206的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)遠大(da)于電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R101、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R102、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R103、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R104的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)，從(cong)而(er)使加(jia)(jia)載在(zai)第(di)一(yi)開關單(dan)元Q1控制端上的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓遠小于加(jia)(jia)載在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R101、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R102、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R103、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)R104上的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓；從(cong)而(er)使得大(da)部分(fen)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)功(gong)率(lv)通過(guo)第(di)一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)元傳輸至用電(dian)(dian)(dian)(dian)(dian)(dian)設備，盡(jin)量減(jian)(jian)少保(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)(dian)路的(de)(de)功(gong)率(lv)損耗(hao)，當需要(yao)調整(zheng)預(yu)設的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)閾值(zhi)大(da)小時，直(zhi)接調整(zheng)第(di)一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)單(dan)元R1中(zhong)各(ge)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)的(de)(de)阻(zu)(zu)(zu)(zu)值(zhi)或者通過(guo)增(zeng)加(jia)(jia)或減(jian)(jian)少串聯或并(bing)聯電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)的(de)(de)方式實現。

上述實施例提供的保護電路的工作原理如下,其中N型開關晶體管Q1的第一端與控制端間的電壓為v_Q1，預設電流閾值為I_max，電阻R101的阻值為R₁₀₁，電阻R102的阻值為R₁₀₂，電阻R103的阻值為R₁₀₃，電阻R104的阻值為R₁₀₄，電阻R205的阻值為R₂₀₅，電阻R306的阻值為R₃₀₆，二極管D1的順向壓降為v_D1。

當N型開關晶體管Q1的第一端與控制端的電壓v_Q1恰好達到N型開關晶體管Q1的開啟電壓時，預設電流閾值即恰好可以通過電流輸入端Iin與電流輸出端Iout的電流閾值I_max為加載在電(dian)阻(zu)R101、電(dian)阻(zu)R102、電(dian)阻(zu)R103、電(dian)阻(zu)R104上的電(dian)流值之(zhi)和，即：

當輸入電流輸入端Iin的電流大于預設的電流閾值I_max時，N型開關晶體管Q1的第一端與第二端導通，從而使電流輸入端Iin與電流輸出端Iou間短路。從而避免大于預設的電流閾值I_max的(de)電(dian)流(liu)通(tong)過電(dian)流(liu)輸(shu)出(chu)端Iout輸(shu)出(chu)，使(shi)與保護電(dian)路(lu)(lu)串聯在(zai)同(tong)一個回路(lu)(lu)中的(de)用電(dian)設備避免因電(dian)流(liu)過大(da)而損毀，并(bing)且不造成回路(lu)(lu)上的(de)器件(jian)損壞(huai)，無(wu)需更(geng)換回路(lu)(lu)上的(de)器件(jian)，其中上述(shu)公(gong)式忽(hu)略(lve)了二極管D1的(de)內(nei)阻(zu)，此外由于，R205及R306的(de)電(dian)阻(zu)遠大(da)于R101-104的(de)電(dian)阻(zu)因此上述(shu)公(gong)式未考(kao)慮通(tong)過R205及R306的(de)電(dian)流(liu)。示例性的(de)，給(gei)出(chu)一組器件(jian)參數(shu)，如：R101-R104均為(wei)1.5Ω，R205、R609、R710、R912為(wei)10kΩ；R306、R407為(wei)3.3kΩ；R508為(wei)22kΩ；R811為(wei)2.2kΩ，

具體(ti)的(de)，本發(fa)明(ming)的(de)實施例提(ti)供一種供電(dian)系統，包括供電(dian)設(she)(she)備(bei)(bei)、用電(dian)設(she)(she)備(bei)(bei)和保護電(dian)路(lu)(lu)，保護電(dian)路(lu)(lu)設(she)(she)置于供電(dian)設(she)(she)備(bei)(bei)和用電(dian)設(she)(she)備(bei)(bei)之(zhi)間(jian)，其中保護電(dian)路(lu)(lu)為上述任一實施例提(ti)供的(de)保護電(dian)路(lu)(lu)。

當(dang)供(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)向(xiang)保(bao)護(hu)(hu)電(dian)(dian)(dian)路(lu)輸(shu)出小(xiao)于(yu)或(huo)等于(yu)預(yu)設(she)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)閾(yu)值的(de)(de)電(dian)(dian)(dian)流(liu)(liu)時，保(bao)護(hu)(hu)電(dian)(dian)(dian)路(lu)將供(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)與用(yong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)導通；當(dang)供(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)向(xiang)保(bao)護(hu)(hu)電(dian)(dian)(dian)路(lu)輸(shu)出大于(yu)預(yu)設(she)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)閾(yu)值的(de)(de)電(dian)(dian)(dian)流(liu)(liu)時，保(bao)護(hu)(hu)電(dian)(dian)(dian)路(lu)將供(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)與用(yong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)斷開，并且(qie)不(bu)造成回路(lu)上的(de)(de)器件損(sun)壞，無(wu)需更(geng)換回路(lu)上的(de)(de)器件；當(dang)供(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)與用(yong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)斷開并且(qie)供(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)向(xiang)保(bao)護(hu)(hu)電(dian)(dian)(dian)路(lu)恢復輸(shu)出小(xiao)于(yu)或(huo)等于(yu)預(yu)設(she)的(de)(de)電(dian)(dian)(dian)流(liu)(liu)閾(yu)值的(de)(de)電(dian)(dian)(dian)流(liu)(liu)時，保(bao)護(hu)(hu)電(dian)(dian)(dian)路(lu)將供(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)與用(yong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)導通，從而 在用(yong)電(dian)(dian)(dian)設(she)備(bei)(bei)(bei)側的(de)(de)故障排(pai)除后恢復通過保(bao)護(hu)(hu)回路(lu)的(de)(de)供(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)，節省了(le)成本和人力(li)資(zi)源。

以上所(suo)述，僅為(wei)本(ben)發(fa)(fa)(fa)明(ming)的(de)(de)(de)(de)具體實施(shi)方式(shi)，但本(ben)發(fa)(fa)(fa)明(ming)的(de)(de)(de)(de)保(bao)(bao)護范(fan)圍(wei)并不局(ju)限于此(ci)，任(ren)何熟悉本(ben)技(ji)(ji)術領域的(de)(de)(de)(de)技(ji)(ji)術人員(yuan)在本(ben)發(fa)(fa)(fa)明(ming)揭(jie)露(lu)的(de)(de)(de)(de)技(ji)(ji)術范(fan)圍(wei)內，可輕易想到的(de)(de)(de)(de)變化(hua)或替換，都應涵蓋在本(ben)發(fa)(fa)(fa)明(ming)的(de)(de)(de)(de)保(bao)(bao)護范(fan)圍(wei)之內。因(yin)此(ci)，本(ben)發(fa)(fa)(fa)明(ming)的(de)(de)(de)(de)保(bao)(bao)護范(fan)圍(wei)應以權利要求的(de)(de)(de)(de)保(bao)(bao)護范(fan)圍(wei)為(wei)準(zhun)。