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PEL-2000A系列 可編程直流(liu)電(dian)子負載(zai)產品屬性

型號

PEL-2020A、PEL-2030A、PEL-2040A、PEL-2041A

輸入電壓

1~500 V

輸出功率

100~350 W

輸出電壓

工作效率

重量

kg

外形尺寸

用途

A. AUTOMATICALLY SEQUENCE FUNCTION

每個通道可以單獨設置快速序列，每通道最多可以建立120個點、延遲時間等，每一步階最小可設定為100us。在相同的控制模式下，可以同時進行多通道的序列控制，并模擬交換式電源供應器加載行為，這是PEL-2000A系列*而有力的特征之一，可運用在多通道輸出電源供應器的模擬。在動態模式下，負載電流或脈沖負載電阻其兩個預置準位的條件設置速度，每一步階可達25us，這通常是作為標準測試程序，以驗證負載快速變化的響應。
右上圖(tu)是一張單通道交換(huan)式電源供應器(qi)仿真(zhen)負(fu)載快速(su)變(bian)化(hua)的一個范例。透過數字示波器(qi)搭配使用電流測棒所(suo)截取到(dao)的電流波形(xing)，PEL- 2000A可程(cheng)序直流電子負(fu)載的序列編(bian)程(cheng)功能(neng)，能(neng)夠對于(yu)交換(huan)式電源供應器(qi)進行產品的性能(neng)測試

B. MULTIPLE OPERATING MODE

C.C. ( 定電流運作模式 )
定電(dian)(dian)(dian)流模(mo)式(shi)下(xia)，負載單元根據所設(she)置的值吸入(ru)電(dian)(dian)(dian)流量(liang)，無論電(dian)(dian)(dian)壓多大(da)，電(dian)(dian)(dian)流保持不變(bian)。CC模(mo)式(shi)下(xia)共有兩個檔(dang)(dang)位(wei)：高(gao)(HI)與低(LOW)檔(dang)(dang)位(wei)，低檔(dang)(dang)位(wei)的分辨率比高(gao)檔(dang)(dang)位(wei)高(gao)，用(yong)于(yu)精密測試，當電(dian)(dian)(dian)流超出低檔(dang)(dang)位(wei)范圍(wei)時就需切換配置文件(jian)位(wei)至高(gao)檔(dang)(dang)位(wei)。PEL-2000A系列可(ke)(ke)程序直(zhi)流電(dian)(dian)(dian)子負載，低范圍(wei)所能承(cheng)受的功(gong)(gong)率為該(gai)型號最大(da)的額定功(gong)(gong)率。CC模(mo)式(shi)下(xia)包(bao)含靜(jing)態與動態兩個主要模(mo)式(shi)，靜(jing)態模(mo)式(shi)用(yong)于(yu)穩定測試，動態模(mo)式(shi)用(yong)于(yu)測試瞬間負載，在動態與靜(jing)態下(xia)也可(ke)(ke)使(shi)用(yong)Go /No Go 功(gong)(gong)能。

C.V. ( 定電壓運作模式 )
定(ding)(ding)電(dian)(dian)壓(ya)模式下負載單(dan)元(yuan)保持電(dian)(dian)壓(ya)不變同時吸取電(dian)(dian)流，在定(ding)(ding)電(dian)(dian)壓(ya)模式下，單(dan)信(xin)(xin)道(dao)負載其可以設定(ding)(ding)A & B兩(liang)個值(zhi)以及限制的(de)(de)電(dian)(dian)流值(zhi)，亦(yi)可透過(guo)負載模塊(kuai)的(de)(de)前面板(ban)A/B鍵(jian)來切換(huan)并(bing)選(xuan)擇A或 B的(de)(de)測試條件(jian)。雙信(xin)(xin)道(dao)負載只(zhi)能設定(ding)(ding)一個條件(jian)值(zhi)(A值(zhi))，在CV模式下可以設定(ding)(ding)響應(ying)時間的(de)(de)快慢。

C.V.+C.C. ( 恒壓+恒流模式 )
在(zai)定(ding)電(dian)壓模(mo)式(shi)(shi)下，可(ke)設定(ding)一個電(dian)流(liu)限制，可(ke)進入CV+CC模(mo)式(shi)(shi)。當(dang)電(dian)壓輸(shu)入大于(yu)A值，并且輸(shu)入電(dian)流(liu)低(di)于(yu)限制電(dian)壓時(shi)，信(xin)道運行在(zai)CV模(mo)式(shi)(shi)，當(dang)電(dian)流(liu)大于(yu)限制時(shi),信(xin)道將(jiang)進入CC模(mo)式(shi)(shi)。

C.R. ( 定電阻模式 )
定電阻模式下負(fu)載(zai)(zai)單(dan)元(yuan)吸收成線性(xing)比例的(de)電流與電壓以匹配所設定的(de)電阻值(zhi)。單(dan)通道(dao)。單(dan)通道(dao)有兩種值(zhi)，2個(ge)檔位及上升(sheng)與下降轉換速率(lv)。和CC模式一樣定電阻支持動態(tai)與靜態(tai)負(fu)載(zai)(zai)，和其他(ta)負(fu)載(zai)(zai)一樣，CR模式支持GO/NG功能。

C. PARALLEL DYNAMIC LOADING

PEL-2000A主控的每個通(tong)道(dao)都可(ke)以并聯(lian)使用，并可(ke)操作在動態與(yu)靜態模式(shi)下。在動態模式(shi)下，負(fu)載可(ke)設定(ding)兩個準位，兩準位之間的延遲最小(xiao)可(ke)設定(ding)為0.025ms。當信道(dao)并聯(lian)使用時，動態測試必須要同步。透過并聯(lian)可(ke)有(you)效的執行(xing)動態高(gao)功率(lv)(lv)負(fu)載，無需(xu)采(cai)用大功率(lv)(lv)的負(fu)載機來提供。

D. FRAME LINK

PEL-2000A系列可透過負載控制接(jie)(jie)(jie)口，連接(jie)(jie)(jie)多(duo)個(ge)電(dian)子(zi)負載，接(jie)(jie)(jie)面(mian)均為標準的(de)MIL20-pin接(jie)(jie)(jie)口，最多(duo)可以將(jiang)4個(ge)副控機(ji)框與第一主機(ji)框相互并接(jie)(jie)(jie)。

E. RUN PROGRAM

在編(bian)程序(xu)列(lie)模式下，共(gong)有12組編(bian)程序(xu)列(lie)，每一組程序(xu)中有10個序(xu)列(lie)，透過編(bian)輯參數(shu)可(ke)進行重(zhong)復測(ce)試，運(yun)行完成后，所有的測(ce)試結(jie)果(guo)包含GO/NG判斷結(jie)果(guo)將會全部顯示在窗(chuang)口上。

F. PROTECTION MODES

PEL-2000A系列包含多種保(bao)護(hu)(hu)模式(shi)：過(guo)(guo)電(dian)(dian)(dian)流(liu)(liu)(liu)保(bao)護(hu)(hu)(OCP)、過(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)保(bao)護(hu)(hu)(OVP)、過(guo)(guo)功率保(bao)護(hu)(hu)(OPP)、反(fan)(fan)極(ji)性保(bao)護(hu)(hu)(RVP)、低電(dian)(dian)(dian)壓(ya)(ya)(ya)保(bao)護(hu)(hu)(UVP)，各種保(bao)護(hu)(hu)模式(shi)都能有效地(di)保(bao)護(hu)(hu)負(fu)(fu)載(zai)與待(dai)測體，當(dang)保(bao)護(hu)(hu)設(she)(she)定(ding)(ding)被(bei)觸發(fa)，蜂(feng)鳴器(qi)將會(hui)發(fa)出警報音，同(tong)時(shi)負(fu)(fu)載(zai)發(fa)出警報停止(zhi)負(fu)(fu)載(zai)吸(xi)(xi)入(ru)電(dian)(dian)(dian)壓(ya)(ya)(ya)及電(dian)(dian)(dian)流(liu)(liu)(liu)，負(fu)(fu)載(zai)運用(yong)在CV、CR模式(shi)時(shi)必須要設(she)(she)定(ding)(ding)過(guo)(guo)電(dian)(dian)(dian)流(liu)(liu)(liu)保(bao)護(hu)(hu)來限(xian)制(zhi)負(fu)(fu)載(zai)的(de)(de)吸(xi)(xi)收電(dian)(dian)(dian)流(liu)(liu)(liu)，建議設(she)(she)定(ding)(ding)電(dian)(dian)(dian)流(liu)(liu)(liu)限(xian)制(zhi)來防(fang)止(zhi)負(fu)(fu)載(zai)燒壞。過(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)保(bao)護(hu)(hu)用(yong)來限(xian)制(zhi)負(fu)(fu)載(zai)的(de)(de)吸(xi)(xi)入(ru)電(dian)(dian)(dian)壓(ya)(ya)(ya)，當(dang)設(she)(she)定(ding)(ding)好(hao)限(xian)制(zhi)電(dian)(dian)(dian)壓(ya)(ya)(ya)，負(fu)(fu)載(zai)就會(hui)有效的(de)(de)限(xian)制(zhi)吸(xi)(xi)入(ru)電(dian)(dian)(dian)壓(ya)(ya)(ya)來保(bao)護(hu)(hu)負(fu)(fu)載(zai)。反(fan)(fan)向極(ji)性保(bao)護(hu)(hu)可有效的(de)(de)防(fang)止(zhi)反(fan)(fan)接(jie)帶來的(de)(de)儀器(qi)損壞，透過(guo)(guo)設(she)(she)定(ding)(ding)低電(dian)(dian)(dian)壓(ya)(ya)(ya)范圍，可有效的(de)(de)防(fang)止(zhi)待(dai)測體因電(dian)(dian)(dian)壓(ya)(ya)(ya)過(guo)(guo)低帶來的(de)(de)損壞。

G. Von VOLTAGE SETTINGS

Von Voltage指負載開(kai)(kai)始(shi)吸(xi)(xi)(xi)取(qu)電(dian)(dian)流時的(de)電(dian)(dian)壓(ya)(ya)(ya)(ya)。Von Voltage共有兩種操作(zuo)模(mo)(mo)式(shi)：Von Latched 開(kai)(kai) 及 Von Latched 關(guan)(guan) 。當Von Latched開(kai)(kai)，當電(dian)(dian)壓(ya)(ya)(ya)(ya)值達到Von電(dian)(dian)壓(ya)(ya)(ya)(ya)時，負載開(kai)(kai)始(shi)吸(xi)(xi)(xi)入(ru)電(dian)(dian)流，且電(dian)(dian)壓(ya)(ya)(ya)(ya)低于(yu)Von電(dian)(dian)壓(ya)(ya)(ya)(ya)時，仍(reng)然(ran)持(chi)續吸(xi)(xi)(xi)入(ru)電(dian)(dian)流。Von Latched 關(guan)(guan)，電(dian)(dian)壓(ya)(ya)(ya)(ya)值達到Von電(dian)(dian)壓(ya)(ya)(ya)(ya)時，開(kai)(kai)始(shi)吸(xi)(xi)(xi)入(ru)電(dian)(dian)流，但當電(dian)(dian)壓(ya)(ya)(ya)(ya)值低于(yu)Von電(dian)(dian)壓(ya)(ya)(ya)(ya)時，停(ting)止(zhi)吸(xi)(xi)(xi)入(ru)電(dian)(dian)流。如圖：Von Latched被設(she)置(zhi)為關(guan)(guan)閉時，若Von-Voltage限(xian)制(zhi)已超過，負載模(mo)(mo)塊(kuai)將開(kai)(kai)始(shi)吸(xi)(xi)(xi)入(ru)電(dian)(dian)流，直至輸出(chu)電(dian)(dian)壓(ya)(ya)(ya)(ya)下降于(yu)Von-Voltage限(xian)制(zhi)時，才會停(ting)止(zhi)吸(xi)(xi)(xi)收電(dian)(dian)流。

H. EXTERNAL CHANNEL CONTROL

透(tou)過后面(mian)板對應通道的(de)(de)6針插(cha)槽，可監測(ce)(ce)(ce)每個(ge)通道的(de)(de)輸入(ru)狀況，包括(kuo)輸入(ru)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)、輸入(ru)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、負(fu)載(zai)的(de)(de)On/Off，以及CC與CV模式的(de)(de)設定。電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)監測(ce)(ce)(ce)輸出，(VMON) 與電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)監測(ce)(ce)(ce)輸出 (IMON)，所輸出的(de)(de)負(fu)載(zai)輸入(ru)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)和(he)負(fu)載(zai)輸入(ru)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)是其所占全刻度(du)的(de)(de)百分比，如0V＝0%全刻度(du)輸入(ru)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，10V＝100%全刻度(du)輸入(ru)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)。電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)監測(ce)(ce)(ce)透(tou)過1 & 3 電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)監測(ce)(ce)(ce)透(tou)過1 & 2。下(xia)面(mian)描述了(le)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)和(he)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)監測(ce)(ce)(ce)輸出的(de)(de)接腳配置。

為了啟動負載(zai)，Load on (pin5) 和 GND (pin1) 端需透過低電壓(ya)(0~1V)，同樣，若需要透過較高電壓(ya)(4-5V)；Load on 輸入(ru)電壓(ya)必須為TTL。