本發明涉及空間(jian)飛(fei)行器指令電源限流保護電路(lu)，具體為(wei)一(yi)種可控可調的空間(jian)計算機指令電源限流保護電路(lu)。

背景技術：

目前空(kong)間(jian)飛行(xing)(xing)器指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)普遍采(cai)用(yong)+30v供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)，指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)進入空(kong)間(jian)計算機(ji)后(hou)，在(zai)(zai)各個(ge)負載(zai)的前端(duan)通過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)阻進行(xing)(xing)限流(liu)(liu)，并且指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)鏈路(lu)上(shang)長期(qi)為+30v電(dian)(dian)(dian)(dian)(dian)(dian)壓。通常(chang)(chang)空(kong)間(jian)飛行(xing)(xing)器指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)力比較強，輸(shu)出電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)能(neng)(neng)(neng)力遠大(da)于指(zhi)(zhi)令負載(zai)驅動電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)耐受(shou)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)能(neng)(neng)(neng)力。在(zai)(zai)負載(zai)發生短路(lu)或異常(chang)(chang)情況下(xia)，有可能(neng)(neng)(neng)將指(zhi)(zhi)令驅動電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)擊(ji)穿燒(shao)毀，導(dao)致(zhi)(zhi)(zhi)指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)在(zai)(zai)故障(zhang)模(mo)式(shi)下(xia)輸(shu)出大(da)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，拉低指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)壓，致(zhi)(zhi)(zhi)使(shi)整個(ge)空(kong)間(jian)飛行(xing)(xing)器所有指(zhi)(zhi)令均不(bu)能(neng)(neng)(neng)正常(chang)(chang)工作，直接(jie)危害空(kong)間(jian)飛行(xing)(xing)器的安全。并且指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)空(kong)閑狀態下(xia)長期(qi)給(gei)負載(zai)加(jia)電(dian)(dian)(dian)(dian)(dian)(dian)，會有可能(neng)(neng)(neng)因為其他原因導(dao)致(zhi)(zhi)(zhi)誤指(zhi)(zhi)令發出。在(zai)(zai)公開的發明專(zhuan)利(申請號(hao)(hao)：us5672918a)中，是針對供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)母線(xian)過(guo)流(liu)(liu)保護電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，通過(guo)邏輯信號(hao)(hao)使(shi)能(neng)(neng)(neng)dcdc模(mo)塊(kuai)禁止端(duan)方式(shi)保護。該保護方式(shi)在(zai)(zai)過(guo)流(liu)(liu)模(mo)式(shi)下(xia)直接(jie)關斷供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)輸(shu)出，使(shi)設(she)備不(bu)能(neng)(neng)(neng)正常(chang)(chang)工作。

技術實現要素：

針對(dui)現(xian)有(you)技術中存在(zai)的問題，本發(fa)明提(ti)供一種可(ke)(ke)控可(ke)(ke)調的空(kong)間計(ji)算機(ji)指(zhi)令電源限流保護電路，結構(gou)簡單，設計(ji)合理，能(neng)夠對(dui)空(kong)間計(ji)算機(ji)指(zhi)令電源實現(xian)過(guo)流保護功能(neng)，安全可(ke)(ke)靠，穩定性高。

本發明是(shi)通過以下技術方案來實(shi)現：

一種可(ke)控可(ke)調的(de)空(kong)間計算機指令(ling)電(dian)源(yuan)限流(liu)保護電(dian)路(lu)(lu)，包括輸出(chu)電(dian)流(liu)調節電(dian)路(lu)(lu)、指令(ling)過(guo)流(liu)信(xin)號(hao)采樣電(dian)路(lu)(lu)、指令(ling)電(dian)源(yuan)使能控制電(dian)路(lu)(lu)、指令(ling)過(guo)流(liu)信(xin)號(hao)輸出(chu)電(dian)路(lu)(lu)和中(zhong)央處理器，以及依次連接的(de)電(dian)流(liu)采樣電(dian)路(lu)(lu)、指令(ling)電(dian)源(yuan)電(dian)子開關(guan)和指令(ling)電(dian)源(yuan)輸出(chu)電(dian)路(lu)(lu)；指令(ling)電(dian)源(yuan)輸出(chu)電(dian)路(lu)(lu)給指令(ling)驅動電(dian)路(lu)(lu)供電(dian)；

所述電(dian)(dian)(dian)流(liu)采樣(yang)電(dian)(dian)(dian)路(lu)和輸(shu)(shu)(shu)出電(dian)(dian)(dian)流(liu)調節電(dian)(dian)(dian)路(lu)的輸(shu)(shu)(shu)入端分(fen)別連(lian)接(jie)(jie)空間計算機的指(zhi)令(ling)電(dian)(dian)(dian)源輸(shu)(shu)(shu)入；電(dian)(dian)(dian)流(liu)采樣(yang)電(dian)(dian)(dian)路(lu)的電(dian)(dian)(dian)壓輸(shu)(shu)(shu)出端與(yu)輸(shu)(shu)(shu)出電(dian)(dian)(dian)流(liu)調節電(dian)(dian)(dian)路(lu)的控制端連(lian)接(jie)(jie)，電(dian)(dian)(dian)流(liu)采樣(yang)電(dian)(dian)(dian)路(lu)的輸(shu)(shu)(shu)出端還依(yi)次經指(zhi)令(ling)過流(liu)信號(hao)采樣(yang)電(dian)(dian)(dian)路(lu)和指(zhi)令(ling)過流(liu)信號(hao)輸(shu)(shu)(shu)出電(dian)(dian)(dian)路(lu)連(lian)接(jie)(jie)中央處理器的采集(ji)端；

所述中(zhong)央處理器的(de)輸出端(duan)(duan)(duan)經發出的(de)指令電源(yuan)(yuan)使(shi)(shi)能(neng)(neng)(neng)信號連接指令電源(yuan)(yuan)使(shi)(shi)能(neng)(neng)(neng)控(kong)制電路(lu)的(de)驅動端(duan)(duan)(duan)，指令電源(yuan)(yuan)使(shi)(shi)能(neng)(neng)(neng)控(kong)制電路(lu)的(de)輸出端(duan)(duan)(duan)連接指令電源(yuan)(yuan)電子開(kai)關的(de)控(kong)制端(duan)(duan)(duan)。

所(suo)述輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)調(diao)(diao)節(jie)電(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)輸(shu)出(chu)(chu)端連接指(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)子開(kai)關的(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)控制端；當未發生指(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)過流(liu)(liu)(liu)時，輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)調(diao)(diao)節(jie)電(dian)(dian)(dian)(dian)路(lu)關斷；當發生指(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)源(yuan)(yuan)過流(liu)(liu)(liu)時，空間(jian)計算機的(de)(de)(de)指(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)源(yuan)(yuan)輸(shu)入電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)經電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)采樣電(dian)(dian)(dian)(dian)路(lu)，通(tong)過電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)采樣電(dian)(dian)(dian)(dian)路(lu)轉化為電(dian)(dian)(dian)(dian)壓(ya)值，控制輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)調(diao)(diao)節(jie)電(dian)(dian)(dian)(dian)路(lu)根據電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)大(da)小來自(zi)主調(diao)(diao)節(jie)指(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)子開(kai)關的(de)(de)(de)開(kai)啟電(dian)(dian)(dian)(dian)壓(ya)。

優(you)選(xuan)的(de)(de)(de)(de)，所述的(de)(de)(de)(de)電(dian)(dian)(dian)流采用電(dian)(dian)(dian)路包括二極管v3，以及電(dian)(dian)(dian)阻r1；電(dian)(dian)(dian)阻r1一端分別連接二極管v3的(de)(de)(de)(de)正極和電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)子開關中(zhong)pmos管v2的(de)(de)(de)(de)s端；電(dian)(dian)(dian)阻r1的(de)(de)(de)(de)另一端接入空間計(ji)算(suan)機的(de)(de)(de)(de)指令電(dian)(dian)(dian)源(yuan)輸入。

優(you)選的(de)(de)，所述的(de)(de)輸(shu)出(chu)電(dian)流調節(jie)電(dian)路包括三極(ji)管(guan)v5和(he)電(dian)阻(zu)r8；三極(ji)管(guan)v5的(de)(de)發射(she)極(ji)接入空間計算機的(de)(de)指(zhi)令(ling)電(dian)源輸(shu)入，基極(ji)連接電(dian)阻(zu)r8的(de)(de)一(yi)端，集電(dian)極(ji)經電(dian)阻(zu)r7連接pmos管(guan)v2的(de)(de)g端；r8的(de)(de)另一(yi)端連接二極(ji)管(guan)v3的(de)(de)負極(ji)，且(qie)經電(dian)阻(zu)r13接地。

優選(xuan)的(de)(de)，所述的(de)(de)指令過流信號采樣電(dian)(dian)(dian)(dian)路包(bao)括電(dian)(dian)(dian)(dian)阻(zu)r3，三極(ji)(ji)管(guan)v4，二(er)極(ji)(ji)管(guan)v6和(he)二(er)極(ji)(ji)管(guan)v7；電(dian)(dian)(dian)(dian)阻(zu)r3的(de)(de)一端(duan)(duan)連(lian)接(jie)pmos管(guan)v2的(de)(de)s端(duan)(duan)，另一端(duan)(duan)分別連(lian)接(jie)三極(ji)(ji)管(guan)v4的(de)(de)基極(ji)(ji)、以及依次負(fu)向(xiang)連(lian)接(jie)的(de)(de)二(er)極(ji)(ji)管(guan)v6和(he)二(er)極(ji)(ji)管(guan)v7；二(er)極(ji)(ji)管(guan)v7的(de)(de)正極(ji)(ji)連(lian)接(jie)三極(ji)(ji)管(guan)v5的(de)(de)集極(ji)(ji)；三極(ji)(ji)管(guan)v4的(de)(de)發射極(ji)(ji)連(lian)接(jie)pmos管(guan)v2的(de)(de)s端(duan)(duan)，集電(dian)(dian)(dian)(dian)極(ji)(ji)連(lian)接(jie)指令過流信號輸出電(dian)(dian)(dian)(dian)路輸入(ru)端(duan)(duan)。

優選的(de)(de)，指令過流信(xin)號(hao)輸出電(dian)(dian)路包括(kuo)電(dian)(dian)阻(zu)(zu)(zu)r11、電(dian)(dian)阻(zu)(zu)(zu)r12、電(dian)(dian)阻(zu)(zu)(zu)r15和(he)電(dian)(dian)阻(zu)(zu)(zu)r17，以及電(dian)(dian)容(rong)c2、三極(ji)管(guan)v9和(he)反向器(qi)；電(dian)(dian)阻(zu)(zu)(zu)r11的(de)(de)一端(duan)(duan)(duan)連接(jie)(jie)指令過流信(xin)號(hao)輸出電(dian)(dian)路的(de)(de)輸入(ru)端(duan)(duan)(duan)，另(ling)一端(duan)(duan)(duan)分別(bie)連接(jie)(jie)電(dian)(dian)阻(zu)(zu)(zu)r15的(de)(de)一端(duan)(duan)(duan)且經連接(jie)(jie)的(de)(de)電(dian)(dian)阻(zu)(zu)(zu)r17后(hou)接(jie)(jie)地；電(dian)(dian)阻(zu)(zu)(zu)r15的(de)(de)另(ling)一端(duan)(duan)(duan)分別(bie)連接(jie)(jie)三極(ji)管(guan)v9的(de)(de)基極(ji)且經電(dian)(dian)容(rong)c2后(hou)接(jie)(jie)地；三極(ji)管(guan)v9的(de)(de)發射極(ji)接(jie)(jie)地，基極(ji)分別(bie)連接(jie)(jie)反相器(qi)的(de)(de)輸入(ru)端(duan)(duan)(duan)和(he)電(dian)(dian)阻(zu)(zu)(zu)r12的(de)(de)一端(duan)(duan)(duan)，電(dian)(dian)阻(zu)(zu)(zu)r12的(de)(de)另(ling)一端(duan)(duan)(duan)連接(jie)(jie)電(dian)(dian)源vcc；反相器(qi)的(de)(de)輸出端(duan)(duan)(duan)連接(jie)(jie)中(zhong)央處理器(qi)的(de)(de)采(cai)集端(duan)(duan)(duan)。

優(you)選的(de)(de)，所(suo)述的(de)(de)指令電(dian)源輸出電(dian)路包括正向連接(jie)在電(dian)源電(dian)子開關中pmos管(guan)(guan)v2的(de)(de)d端二(er)極(ji)(ji)(ji)管(guan)(guan)v1，以及分別連接(jie)在二(er)極(ji)(ji)(ji)管(guan)(guan)v1正極(ji)(ji)(ji)和負極(ji)(ji)(ji)的(de)(de)電(dian)容c1和電(dian)阻(zu)r6，電(dian)容c1和電(dian)阻(zu)r6的(de)(de)另一端均(jun)接(jie)地(di)；電(dian)容c1并(bing)聯有電(dian)阻(zu)r4。

優(you)選的(de)，所述(shu)的(de)指(zhi)令(ling)電(dian)(dian)(dian)(dian)源(yuan)使(shi)能(neng)控制電(dian)(dian)(dian)(dian)路包括電(dian)(dian)(dian)(dian)阻(zu)(zu)r10、電(dian)(dian)(dian)(dian)阻(zu)(zu)r14和電(dian)(dian)(dian)(dian)阻(zu)(zu)r16，以(yi)及三極(ji)(ji)(ji)管v8；電(dian)(dian)(dian)(dian)阻(zu)(zu)r10的(de)一端(duan)(duan)經電(dian)(dian)(dian)(dian)阻(zu)(zu)r7連(lian)接(jie)pmos管v2的(de)g端(duan)(duan)，另一端(duan)(duan)連(lian)接(jie)三極(ji)(ji)(ji)管v8的(de)集(ji)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)；電(dian)(dian)(dian)(dian)阻(zu)(zu)r14的(de)一端(duan)(duan)連(lian)接(jie)指(zhi)令(ling)電(dian)(dian)(dian)(dian)源(yuan)使(shi)能(neng)信號，另一端(duan)(duan)連(lian)接(jie)三極(ji)(ji)(ji)管v8的(de)基極(ji)(ji)(ji)；電(dian)(dian)(dian)(dian)阻(zu)(zu)r16的(de)一端(duan)(duan)連(lian)接(jie)指(zhi)令(ling)電(dian)(dian)(dian)(dian)源(yuan)使(shi)能(neng)信號，另一端(duan)(duan)連(lian)接(jie)三極(ji)(ji)(ji)管v8的(de)發射(she)極(ji)(ji)(ji)且(qie)接(jie)地(di)。

優選(xuan)的，在中央處理(li)器發送指令(ling)電源使能信(xin)號(hao)同時，開(kai)始掃描(miao)指令(ling)過流(liu)信(xin)號(hao)輸(shu)出(chu)電路的脈(mo)沖變化；

如果有(you)脈沖(chong)電(dian)平(ping)變化，則表明無過(guo)流發生；

如無(wu)脈沖變化，僅為(wei)恒(heng)定低電平信號，則表明指(zhi)令電源有過(guo)流發(fa)生(sheng)；中央處理器會記錄過(guo)流次數，并且通(tong)過(guo)中央處理器定位發(fa)生(sheng)過(guo)流故(gu)障的指(zhi)令通(tong)道。

與現有(you)技(ji)術相比，本發(fa)明具有(you)以下(xia)有(you)益的技(ji)術效果：

本發(fa)明通(tong)過(guo)過(guo)流(liu)(liu)時(shi)啟動輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)調節電(dian)(dian)(dian)(dian)(dian)路對(dui)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)子(zi)開(kai)(kai)(kai)(kai)關(guan)的(de)(de)開(kai)(kai)(kai)(kai)啟電(dian)(dian)(dian)(dian)(dian)壓進行調節，從(cong)而實現了對(dui)空(kong)(kong)間(jian)計算機(ji)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)過(guo)流(liu)(liu)保(bao)(bao)護(hu)功(gong)能(neng)(neng)。在指(zhi)(zhi)(zhi)令(ling)(ling)(ling)負(fu)(fu)載(zai)(zai)發(fa)生(sheng)故障或短路時(shi)，能(neng)(neng)夠(gou)(gou)將指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)限制在安(an)全范圍內，既(ji)能(neng)(neng)保(bao)(bao)證(zheng)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)正(zheng)(zheng)(zheng)常(chang)輸出(chu)(chu)，又不燒毀指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)鏈路相關(guan)的(de)(de)器(qi)件。由于指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)的(de)(de)打開(kai)(kai)(kai)(kai)和關(guan)斷(duan)(duan)均受(shou)中(zhong)央(yang)處理(li)器(qi)控制，在無(wu)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)發(fa)出(chu)(chu)時(shi)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)無(wu)電(dian)(dian)(dian)(dian)(dian)壓輸出(chu)(chu)，保(bao)(bao)證(zheng)空(kong)(kong)閑(xian)狀態時(shi)無(wu)誤指(zhi)(zhi)(zhi)令(ling)(ling)(ling)發(fa)出(chu)(chu)。通(tong)過(guo)調節電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)采(cai)樣(yang)電(dian)(dian)(dian)(dian)(dian)路，可以對(dui)過(guo)流(liu)(liu)保(bao)(bao)護(hu)點進行設置，適應不同(tong)空(kong)(kong)間(jian)計算機(ji)負(fu)(fu)載(zai)(zai)需要。在過(guo)流(liu)(liu)因(yin)素消除(chu)后，電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)采(cai)樣(yang)電(dian)(dian)(dian)(dian)(dian)路上采(cai)集電(dian)(dian)(dian)(dian)(dian)壓變小，使指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)子(zi)開(kai)(kai)(kai)(kai)關(guan)自主恢復正(zheng)(zheng)(zheng)常(chang)的(de)(de)開(kai)(kai)(kai)(kai)啟關(guan)斷(duan)(duan)，不影響空(kong)(kong)間(jian)計算機(ji)的(de)(de)功(gong)能(neng)(neng)和性能(neng)(neng)。從(cong)而使得本發(fa)明，能(neng)(neng)夠(gou)(gou)在確保(bao)(bao)空(kong)(kong)間(jian)飛行器(qi)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)負(fu)(fu)載(zai)(zai)短路情(qing)況下，不燒毀驅動電(dian)(dian)(dian)(dian)(dian)路；能(neng)(neng)夠(gou)(gou)在負(fu)(fu)載(zai)(zai)短路時(shi)不會拉低、關(guan)斷(duan)(duan)空(kong)(kong)間(jian)飛行器(qi)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian)，影響整個飛行器(qi)的(de)(de)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)安(an)全；能(neng)(neng)夠(gou)(gou)在負(fu)(fu)載(zai)(zai)故障解除(chu)后自主恢復正(zheng)(zheng)(zheng)常(chang)供(gong)電(dian)(dian)(dian)(dian)(dian)；能(neng)(neng)夠(gou)(gou)讓指(zhi)(zhi)(zhi)令(ling)(ling)(ling)供(gong)電(dian)(dian)(dian)(dian)(dian)與指(zhi)(zhi)(zhi)令(ling)(ling)(ling)信號同(tong)步發(fa)出(chu)(chu)，避免(mian)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)長時(shi)間(jian)加電(dian)(dian)(dian)(dian)(dian)，防止空(kong)(kong)閑(xian)狀態下誤指(zhi)(zhi)(zhi)令(ling)(ling)(ling)發(fa)出(chu)(chu)，保(bao)(bao)證(zheng)空(kong)(kong)間(jian)飛行器(qi)指(zhi)(zhi)(zhi)令(ling)(ling)(ling)供(gong)電(dian)(dian)(dian)(dian)(dian)鏈路安(an)全。

附圖說明

圖(tu)1為本發明實例中所述(shu)限流保護(hu)電路的(de)結構(gou)原理框圖(tu)。

圖(tu)2為本(ben)發明實(shi)例(li)中所述限流保(bao)護電路(lu)的結構(gou)原理電路(lu)圖(tu)。

圖中，指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)源(yuan)輸入1、電(dian)(dian)(dian)(dian)(dian)流采(cai)用電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)2、指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)子開關3、指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)源(yuan)輸出(chu)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)4、輸出(chu)電(dian)(dian)(dian)(dian)(dian)流調節電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)5、指(zhi)(zhi)令過流信號(hao)采(cai)樣電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)6、指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)源(yuan)使能信號(hao)7、指(zhi)(zhi)令電(dian)(dian)(dian)(dian)(dian)源(yuan)使能控制電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)8、指(zhi)(zhi)令過流信號(hao)輸出(chu)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)9、中央處理器10。

具體實施方式

下(xia)面結合具體的實施例對(dui)本發(fa)明(ming)做進一步的詳細說明(ming)，所述(shu)是對(dui)本發(fa)明(ming)的解釋(shi)而(er)不是限(xian)定。

如圖(tu)1所示，在(zai)中央處(chu)理器10給(gei)指(zhi)令(ling)(ling)驅動電(dian)(dian)路(lu)(lu)11發送指(zhi)令(ling)(ling)發出(chu)命(ming)令(ling)(ling)同時，發出(chu)指(zhi)令(ling)(ling)電(dian)(dian)源使能(neng)信號7，電(dian)(dian)源使能(neng)信號7驅動指(zhi)令(ling)(ling)電(dian)(dian)源使能(neng)控制(zhi)電(dian)(dian)路(lu)(lu)8，打開(kai)指(zhi)令(ling)(ling)電(dian)(dian)源電(dian)(dian)子開(kai)關3，使指(zhi)令(ling)(ling)電(dian)(dian)源輸出(chu)電(dian)(dian)路(lu)(lu)4給(gei)指(zhi)令(ling)(ling)驅動電(dian)(dian)路(lu)(lu)11供電(dian)(dian)。

在中央處(chu)理(li)器10發(fa)(fa)送(song)指令電(dian)源(yuan)使(shi)能信號7同時(shi)，開始(shi)掃描指令過(guo)(guo)流(liu)信號輸出電(dian)路(lu)9的(de)脈沖變(bian)化。如無脈沖變(bian)化，僅為恒定低電(dian)平信號，則表(biao)明指令電(dian)源(yuan)有過(guo)(guo)流(liu)發(fa)(fa)生(sheng)。如果(guo)有脈沖電(dian)平變(bian)化，則表(biao)明無過(guo)(guo)流(liu)發(fa)(fa)生(sheng)。中央處(chu)理(li)器10會記錄(lu)過(guo)(guo)流(liu)次數(shu)，并且通過(guo)(guo)中央處(chu)理(li)器10定位(wei)發(fa)(fa)生(sheng)過(guo)(guo)流(liu)故障(zhang)的(de)指令通道。

在(zai)(zai)發(fa)生(sheng)指(zhi)(zhi)(zhi)令(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)過(guo)流(liu)(liu)(liu)(liu)時，空間計(ji)算機的指(zhi)(zhi)(zhi)令(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)輸(shu)入1流(liu)(liu)(liu)(liu)經電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)采(cai)樣(yang)(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)2，通過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)采(cai)樣(yang)(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)2轉化(hua)為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值，控制輸(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)調(diao)(diao)節電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)5。根(gen)據電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的大(da)小(xiao)(xiao)來(lai)自(zi)主調(diao)(diao)節指(zhi)(zhi)(zhi)令(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開關(guan)(guan)(guan)(guan)(guan)3的開啟(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)i經過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻r1，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻兩端的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值為i*r1，1n5819二極(ji)(ji)管壓(ya)(ya)降為0.3v。在(zai)(zai)i*r1+0.3v小(xiao)(xiao)于0.7v時，三(san)極(ji)(ji)管v5未導通，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開關(guan)(guan)(guan)(guan)(guan)v2的ugs電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為-10v，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開關(guan)(guan)(guan)(guan)(guan)輸(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)為i。當(dang)i*r1+0.3v大(da)于0.7v時，隨(sui)著(zhu)(zhu)i增大(da)，流(liu)(liu)(liu)(liu)經電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻r8電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)ib增大(da)，三(san)極(ji)(ji)管v5工(gong)作(zuo)狀(zhuang)態逐(zhu)漸(jian)向(xiang)飽和區轉移，三(san)極(ji)(ji)管v5的uce壓(ya)(ya)降降低。隨(sui)著(zhu)(zhu)uce電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)降低，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開關(guan)(guan)(guan)(guan)(guan)2的ugs電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值減小(xiao)(xiao)，利用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開關(guan)(guan)(guan)(guan)(guan)開啟(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)與輸(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)線性關(guan)(guan)(guan)(guan)(guan)系，開啟(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)越低，輸(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)能(neng)(neng)力越小(xiao)(xiao)，當(dang)ugs電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值低于開啟(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)2v時，徹底關(guan)(guan)(guan)(guan)(guan)斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開關(guan)(guan)(guan)(guan)(guan)v2的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)輸(shu)出(chu)(chu)(chu)。通過(guo)調(diao)(diao)節配置電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)采(cai)樣(yang)(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)2阻值大(da)小(xiao)(xiao)，使在(zai)(zai)發(fa)生(sheng)短路(lu)(lu)故障(zhang)時通過(guo)指(zhi)(zhi)(zhi)令(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開關(guan)(guan)(guan)(guan)(guan)3的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)不會燒毀下一級指(zhi)(zhi)(zhi)令(ling)驅動電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)11。如果過(guo)流(liu)(liu)(liu)(liu)因素消除后，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)采(cai)樣(yang)(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)2上采(cai)集電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)變(bian)小(xiao)(xiao)，使指(zhi)(zhi)(zhi)令(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開關(guan)(guan)(guan)(guan)(guan)自(zi)主恢復正(zheng)常的開啟(qi)(qi)(qi)關(guan)(guan)(guan)(guan)(guan)斷，不影響空間計(ji)算機的功能(neng)(neng)和性能(neng)(neng)。

本發明實施例提供了(le)針對某(mou)型號(hao)衛(wei)星平臺(tai)產(chan)品計算機一種可控(kong)(kong)制(zhi)可調節自恢復帶計數功(gong)能(neng)的指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)源限流(liu)(liu)保護電(dian)(dian)(dian)路(lu)(lu)。該電(dian)(dian)(dian)路(lu)(lu)嵌入在該平臺(tai)計算機指(zhi)(zhi)(zhi)令(ling)(ling)(ling)發送模塊內。電(dian)(dian)(dian)路(lu)(lu)原理如圖2所示，該電(dian)(dian)(dian)路(lu)(lu)包括指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)源輸入1、電(dian)(dian)(dian)流(liu)(liu)采(cai)用(yong)電(dian)(dian)(dian)路(lu)(lu)2、指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)源電(dian)(dian)(dian)子(zi)開關3、指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)源輸出電(dian)(dian)(dian)路(lu)(lu)4、輸出電(dian)(dian)(dian)流(liu)(liu)調節電(dian)(dian)(dian)路(lu)(lu)5、指(zhi)(zhi)(zhi)令(ling)(ling)(ling)過(guo)流(liu)(liu)信號(hao)采(cai)樣電(dian)(dian)(dian)路(lu)(lu)6、指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)源使能(neng)信號(hao)7、指(zhi)(zhi)(zhi)令(ling)(ling)(ling)電(dian)(dian)(dian)源使能(neng)控(kong)(kong)制(zhi)電(dian)(dian)(dian)路(lu)(lu)8、指(zhi)(zhi)(zhi)令(ling)(ling)(ling)過(guo)流(liu)(liu)信號(hao)輸出電(dian)(dian)(dian)路(lu)(lu)9及中(zhong)央處理器10。

其中(zhong)，所(suo)述(shu)的(de)(de)電(dian)(dian)(dian)流采用(yong)電(dian)(dian)(dian)路(lu)2包(bao)括二(er)極管(guan)v3，以及電(dian)(dian)(dian)阻r1；電(dian)(dian)(dian)阻r1一端(duan)分別連接(jie)二(er)極管(guan)v3的(de)(de)正(zheng)極和(he)電(dian)(dian)(dian)源電(dian)(dian)(dian)子開關(guan)3中(zhong)pmos管(guan)v2的(de)(de)s端(duan)；電(dian)(dian)(dian)阻r1的(de)(de)另一端(duan)接(jie)入(ru)空間計算機(ji)的(de)(de)指(zhi)令電(dian)(dian)(dian)源輸入(ru)1。

所述(shu)的(de)輸(shu)(shu)出電(dian)(dian)(dian)流調節電(dian)(dian)(dian)路(lu)5包括三(san)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v5和(he)電(dian)(dian)(dian)阻(zu)(zu)r8；三(san)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v5的(de)發射(she)極(ji)(ji)(ji)接(jie)(jie)入空間計算機的(de)指令電(dian)(dian)(dian)源輸(shu)(shu)入1，基極(ji)(ji)(ji)連(lian)接(jie)(jie)電(dian)(dian)(dian)阻(zu)(zu)r8的(de)一(yi)端(duan)，集(ji)電(dian)(dian)(dian)極(ji)(ji)(ji)經(jing)電(dian)(dian)(dian)阻(zu)(zu)r7連(lian)接(jie)(jie)pmos管(guan)(guan)(guan)(guan)(guan)v2的(de)g端(duan)；r8的(de)另一(yi)端(duan)連(lian)接(jie)(jie)二極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v3的(de)負(fu)極(ji)(ji)(ji)，且經(jing)電(dian)(dian)(dian)阻(zu)(zu)r13接(jie)(jie)地(di)。指令過流信號采樣電(dian)(dian)(dian)路(lu)6包括電(dian)(dian)(dian)阻(zu)(zu)r3，三(san)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v4，二極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v6和(he)二極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v7；電(dian)(dian)(dian)阻(zu)(zu)r3的(de)一(yi)端(duan)連(lian)接(jie)(jie)pmos管(guan)(guan)(guan)(guan)(guan)v2的(de)s端(duan)，另一(yi)端(duan)分別連(lian)接(jie)(jie)三(san)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v4的(de)基極(ji)(ji)(ji)、以及依次(ci)負(fu)向連(lian)接(jie)(jie)的(de)二極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v6和(he)二極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v7；二極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v7的(de)正極(ji)(ji)(ji)連(lian)接(jie)(jie)三(san)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v5的(de)集(ji)電(dian)(dian)(dian)極(ji)(ji)(ji)；三(san)極(ji)(ji)(ji)管(guan)(guan)(guan)(guan)(guan)v4的(de)發射(she)極(ji)(ji)(ji)連(lian)接(jie)(jie)pmos管(guan)(guan)(guan)(guan)(guan)v2的(de)s端(duan)，集(ji)電(dian)(dian)(dian)極(ji)(ji)(ji)連(lian)接(jie)(jie)指令過流信號輸(shu)(shu)出電(dian)(dian)(dian)路(lu)9輸(shu)(shu)入端(duan)。

指令過(guo)流信(xin)號輸出(chu)(chu)(chu)電(dian)(dian)(dian)路(lu)9包括(kuo)電(dian)(dian)(dian)阻(zu)r11、電(dian)(dian)(dian)阻(zu)r12、電(dian)(dian)(dian)阻(zu)r15和(he)電(dian)(dian)(dian)阻(zu)r17，以及電(dian)(dian)(dian)容(rong)c2、三(san)(san)極管v9和(he)反向(xiang)器(qi)(qi)；電(dian)(dian)(dian)阻(zu)r11的(de)(de)(de)一(yi)端(duan)連(lian)(lian)接(jie)(jie)指令過(guo)流信(xin)號輸出(chu)(chu)(chu)電(dian)(dian)(dian)路(lu)9的(de)(de)(de)輸入端(duan)，另(ling)一(yi)端(duan)分(fen)別(bie)(bie)(bie)連(lian)(lian)接(jie)(jie)電(dian)(dian)(dian)阻(zu)r15的(de)(de)(de)一(yi)端(duan)且經(jing)連(lian)(lian)接(jie)(jie)的(de)(de)(de)電(dian)(dian)(dian)阻(zu)r17后接(jie)(jie)地(di)；電(dian)(dian)(dian)阻(zu)r15的(de)(de)(de)另(ling)一(yi)端(duan)分(fen)別(bie)(bie)(bie)連(lian)(lian)接(jie)(jie)三(san)(san)極管v9的(de)(de)(de)基極且經(jing)電(dian)(dian)(dian)容(rong)c2后接(jie)(jie)地(di)；三(san)(san)極管v9的(de)(de)(de)發射極接(jie)(jie)地(di)，基極分(fen)別(bie)(bie)(bie)連(lian)(lian)接(jie)(jie)反相器(qi)(qi)的(de)(de)(de)輸入端(duan)和(he)電(dian)(dian)(dian)阻(zu)r12的(de)(de)(de)一(yi)端(duan)，電(dian)(dian)(dian)阻(zu)r12的(de)(de)(de)另(ling)一(yi)端(duan)連(lian)(lian)接(jie)(jie)電(dian)(dian)(dian)源vcc；反相器(qi)(qi)的(de)(de)(de)輸出(chu)(chu)(chu)端(duan)連(lian)(lian)接(jie)(jie)中央處理器(qi)(qi)的(de)(de)(de)采集端(duan)。

所述(shu)的(de)指令電(dian)(dian)(dian)(dian)源(yuan)輸出(chu)電(dian)(dian)(dian)(dian)路4包括正向(xiang)連(lian)接在電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)子(zi)開關3中pmos管v2的(de)d端(duan)二極(ji)管v1，以及分別連(lian)接在二極(ji)管v1正極(ji)和負(fu)極(ji)的(de)電(dian)(dian)(dian)(dian)容c1和電(dian)(dian)(dian)(dian)阻r6，電(dian)(dian)(dian)(dian)容c1和電(dian)(dian)(dian)(dian)阻r6的(de)另(ling)一端(duan)均接地；電(dian)(dian)(dian)(dian)容c1并聯有電(dian)(dian)(dian)(dian)阻r4。

所述的(de)(de)指(zhi)(zhi)令電(dian)(dian)(dian)源使能(neng)控制電(dian)(dian)(dian)路8包括電(dian)(dian)(dian)阻r10、電(dian)(dian)(dian)阻r14和電(dian)(dian)(dian)阻r16，以及三極(ji)管(guan)v8；電(dian)(dian)(dian)阻r10的(de)(de)一(yi)端(duan)經電(dian)(dian)(dian)阻r7連(lian)接(jie)(jie)pmos管(guan)v2的(de)(de)g端(duan)，另一(yi)端(duan)連(lian)接(jie)(jie)三極(ji)管(guan)v8的(de)(de)集(ji)電(dian)(dian)(dian)極(ji)；電(dian)(dian)(dian)阻r14的(de)(de)一(yi)端(duan)連(lian)接(jie)(jie)指(zhi)(zhi)令電(dian)(dian)(dian)源使能(neng)信號7，另一(yi)端(duan)連(lian)接(jie)(jie)三極(ji)管(guan)v8的(de)(de)基極(ji)；電(dian)(dian)(dian)阻r16的(de)(de)一(yi)端(duan)連(lian)接(jie)(jie)指(zhi)(zhi)令電(dian)(dian)(dian)源使能(neng)信號7，另一(yi)端(duan)連(lian)接(jie)(jie)三極(ji)管(guan)v8的(de)(de)發射(she)極(ji)且接(jie)(jie)地。

使(shi)(shi)用時(shi)(shi)(shi)，空間計(ji)算機指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)輸(shu)(shu)入1流(liu)(liu)經電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)采樣(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)2中(zhong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)。在中(zhong)央處(chu)理(li)(li)器(qi)(qi)10發(fa)送(song)指(zhi)(zhi)令(ling)(ling)(ling)(ling)命令(ling)(ling)(ling)(ling)同時(shi)(shi)(shi)，發(fa)出(chu)(chu)指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)使(shi)(shi)能(neng)(neng)信號(hao)7，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)使(shi)(shi)能(neng)(neng)信號(hao)7驅(qu)動指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)使(shi)(shi)能(neng)(neng)控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)8，使(shi)(shi)三極(ji)(ji)管(guan)(guan)v8導(dao)通(tong)，打(da)開(kai)(kai)(kai)(kai)指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)3中(zhong)的(de)(de)(de)pmos管(guan)(guan)2n7389，使(shi)(shi)指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)4給后(hou)級指(zhi)(zhi)令(ling)(ling)(ling)(ling)驅(qu)動的(de)(de)(de)負(fu)載(zai)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。在中(zhong)央處(chu)理(li)(li)器(qi)(qi)10發(fa)送(song)指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)使(shi)(shi)能(neng)(neng)信號(hao)同時(shi)(shi)(shi)，開(kai)(kai)(kai)(kai)始掃(sao)描指(zhi)(zhi)令(ling)(ling)(ling)(ling)過(guo)流(liu)(liu)信號(hao)輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)9的(de)(de)(de)脈(mo)沖(chong)(chong)變(bian)(bian)化。如(ru)無脈(mo)沖(chong)(chong)變(bian)(bian)化，僅為(wei)(wei)恒定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平信號(hao)，則表明指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)有過(guo)流(liu)(liu)發(fa)生(sheng)。如(ru)果有脈(mo)沖(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平變(bian)(bian)化，則表明無過(guo)流(liu)(liu)發(fa)生(sheng)。本發(fa)明帶(dai)過(guo)流(liu)(liu)計(ji)數(shu)功能(neng)(neng)，通(tong)過(guo)中(zhong)央處(chu)理(li)(li)器(qi)(qi)10可以定(ding)(ding)位發(fa)生(sheng)過(guo)流(liu)(liu)故(gu)障的(de)(de)(de)指(zhi)(zhi)令(ling)(ling)(ling)(ling)通(tong)道；中(zhong)央處(chu)理(li)(li)器(qi)(qi)10會(hui)記錄(lu)過(guo)流(liu)(liu)次數(shu)，并(bing)且通(tong)過(guo)中(zhong)央處(chu)理(li)(li)器(qi)(qi)10定(ding)(ding)位發(fa)生(sheng)過(guo)流(liu)(liu)故(gu)障的(de)(de)(de)指(zhi)(zhi)令(ling)(ling)(ling)(ling)通(tong)道。在發(fa)生(sheng)指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)過(guo)流(liu)(liu)時(shi)(shi)(shi)，通(tong)過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)采樣(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)2中(zhong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)轉化為(wei)(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓值(zhi)(zhi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)i經過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)r1，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)兩端的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓值(zhi)(zhi)為(wei)(wei)i*r1，1n5819二極(ji)(ji)管(guan)(guan)壓降(jiang)(jiang)為(wei)(wei)0.3v。在i*r1+0.3v小(xiao)于(yu)0.7v時(shi)(shi)(shi)，三極(ji)(ji)管(guan)(guan)v5未(wei)導(dao)通(tong)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)v2的(de)(de)(de)ugs電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓為(wei)(wei)-10v，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)為(wei)(wei)i。當(dang)i*r1+0.3v大(da)(da)于(yu)0.7v時(shi)(shi)(shi)，隨著i增大(da)(da)，流(liu)(liu)經電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)r8電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)ib增大(da)(da)，三極(ji)(ji)管(guan)(guan)v5工(gong)作狀態逐漸向飽和區轉移(yi)，三極(ji)(ji)管(guan)(guan)v5的(de)(de)(de)uce壓降(jiang)(jiang)降(jiang)(jiang)低(di)(di)。隨著uce電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓降(jiang)(jiang)低(di)(di)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)2的(de)(de)(de)ugs電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓值(zhi)(zhi)減小(xiao)，利用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)開(kai)(kai)(kai)(kai)啟電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓與(yu)輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)性關(guan)(guan)(guan)系，開(kai)(kai)(kai)(kai)啟電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓越低(di)(di)，輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)能(neng)(neng)力越小(xiao)，當(dang)ugs電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓值(zhi)(zhi)低(di)(di)于(yu)開(kai)(kai)(kai)(kai)啟電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓2v時(shi)(shi)(shi)，徹底關(guan)(guan)(guan)斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)v2的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)輸(shu)(shu)出(chu)(chu)。通(tong)過(guo)調(diao)(diao)節(jie)配置電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)采樣(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)2中(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)r1的(de)(de)(de)阻(zu)(zu)(zu)值(zhi)(zhi)大(da)(da)小(xiao)，使(shi)(shi)在發(fa)生(sheng)短路(lu)(lu)(lu)故(gu)障時(shi)(shi)(shi)通(tong)過(guo)指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)不會(hui)燒毀下一級指(zhi)(zhi)令(ling)(ling)(ling)(ling)驅(qu)動電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)。如(ru)果過(guo)流(liu)(liu)因素消除后(hou)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)采樣(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)2上采集電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓變(bian)(bian)小(xiao)，i*r1+0.3v小(xiao)于(yu)0.7v，輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)調(diao)(diao)節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)5中(zhong)的(de)(de)(de)三極(ji)(ji)管(guan)(guan)v5關(guan)(guan)(guan)斷，使(shi)(shi)指(zhi)(zhi)令(ling)(ling)(ling)(ling)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)自主(zhu)恢復正常的(de)(de)(de)開(kai)(kai)(kai)(kai)啟關(guan)(guan)(guan)斷，不影響空間計(ji)算機的(de)(de)(de)功能(neng)(neng)和性能(neng)(neng)。

本(ben)發明(ming)所舉的具(ju)體實施例僅是對此(ci)發明(ming)精神的詮釋，本(ben)發明(ming)技術領域的技術人員可(ke)以對描述的具(ju)體實施例進行修改或(huo)類似的方法替代，并不偏離(li)本(ben)發明(ming)的精神。