產品列表PRODUCTS LIST
一、直流電子負載任務
電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)負載用于測(ce)(ce)試直流(liu)(liu)穩壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)、蓄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池等電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的性(xing)能。設計和制(zhi)作一臺電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)負載，有(you)恒(heng)流(liu)(liu)和恒(heng)壓(ya)兩種模式(shi)，可(ke)手(shou)動切(qie)換。恒(heng)流(liu)(liu)方(fang)式(shi)時要(yao)求不(bu)論輸入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)如何(he)變化(hua)(在(zai)一定(ding)(ding)范圍內)，流(liu)(liu)過(guo)該電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)負載的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)恒(heng)定(ding)(ding)，且(qie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)值可(ke)設定(ding)(ding)。工作于恒(heng)壓(ya)方(fang)式(shi)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)負載端電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)保持(chi)恒(heng)定(ding)(ding)，且(qie)可(ke)設定(ding)(ding)，流(liu)(liu)入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)負載的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)隨(sui)被測(ce)(ce)直流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)變化(hua)而變化(hua)。圖中限(xian)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)取(qu)0.5Ω～1Ω，≥10W，以防電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)過(guo)大損壞(huai)被測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路。被測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)使用橋式(shi)整流(liu)(liu)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容濾波(bo)構成(cheng)，濾波(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容容量總(zong)和不(bu)超過(guo)2200uF，以測(ce)(ce)量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)負載在(zai)應對(dui)含有(you)脈動成(cheng)分的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)信(xin)號時的穩定(ding)(ding)性(xing)。
二、直流電子負載要(yao)求
1、基本要求：
(1)恒壓(ya)模(mo)式下電子負載端電壓(ya)Uo 可設(she)定，范圍：0~10V;以0.1V 為步進并顯示設(she)定電壓(ya);電流能(neng)力≥2.0A。電壓(ya)誤差≤5%。
(2)恒流模(mo)式下電子負載(zai)流入電流Io 可設(she)定，范圍：0~2.0A;以0.01A 為步進并(bing)顯示設(she)定電流。誤(wu)差(cha)≤10%。
2、發揮部分(fen)
(1)電(dian)壓模式下能(neng)以1KHz 切換負載(zai)的接入和斷(duan)開(kai)，1KHz 時鐘源自制(zhi)。
(2)恒(heng)壓方(fang)式下以0.01V 為步進并(bing)顯示設定電(dian)壓，電(dian)流能力≥3.0A。電(dian)壓誤差≤1%。
(3)恒流方(fang)式下可設定電流范圍0~，步進0.01A，電流誤(wu)差≤5%。
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