一、數字電位器的作用有哪些

數字(zi)電(dian)(dian)(dian)(dian)(dian)位器(qi)由數字(zi)輸(shu)(shu)入(ru)控制，產生一個(ge)模擬量的輸(shu)(shu)出(chu)。依據數字(zi)電(dian)(dian)(dian)(dian)(dian)位器(qi)的不(bu)同，抽頭電(dian)(dian)(dian)(dian)(dian)流最大值(zhi)可以從幾(ji)百微安到(dao)幾(ji)個(ge)毫(hao)安。數字(zi)電(dian)(dian)(dian)(dian)(dian)位器(qi)采用(yong)數控方式調節(jie)電(dian)(dian)(dian)(dian)(dian)阻值(zhi)的，具(ju)有使用(yong)靈活、調節(jie)精度(du)高(gao)、無觸點、低噪(zao)聲、不(bu)易污損(sun)、抗振動、抗干擾、體積小、壽命長等顯(xian)著(zhu)優點，可在(zai)許(xu)多領域取代機械電(dian)(dian)(dian)(dian)(dian)位器(qi)。那么數字(zi)電(dian)(dian)(dian)(dian)(dian)位器(qi)的作用(yong)有哪些呢？

數字電位器正在(zai)國(guo)內外迅速推(tui)廣，并大(da)量(liang)應用于檢(jian)測儀器、PC、手(shou)機、家(jia)用電(dian)器、現代辦(ban)公設(she)備、工業控制、醫療(liao)設(she)備等領域。

例如：電(dian)冰箱、程控(kong)機、電(dian)源、功(gong)率表(biao)、自動檢(jian)測設(she)備、光纖網絡、調節LCD顯(xian)示(shi)屏(ping)、電(dian)壓控(kong)制(zhi)、取(qu)代機械(xie)式電(dian)位(wei)器(qi)、匹配線性阻抗、調節VCOM設(she)置(zhi)等等。

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二、數字電位器使用方法是什么

1、片選信號CS為低(di)電平(ping)時允許滑(hua)塊(kuai)移(yi)動，U/D為高(gao)(gao)電平(ping)時滑(hua)塊(kuai)向高(gao)(gao)端移(yi)動，為低(di)時滑(hua)塊(kuai)向低(di)端移(yi)動。

2、片選信號(hao)CS由低電(dian)平向高電(dian)平跳變時，并且INC為高電(dian)平時儲存滑(hua)塊位置，掉電(dian)后下次上電(dian)時依然保持該位置。

3、片(pian)選信(xin)號CS為(wei)高(gao)電(dian)平(ping)時(shi)保持(chi)現狀(zhuang)，不允許動作；片(pian)選信(xin)號CS由低(di)電(dian)平(ping)向(xiang)高(gao)電(dian)平(ping)跳(tiao)變(bian)時(shi)，并且INC為(wei)低(di)電(dian)平(ping)時(shi)恢復(fu)初(chu)始狀(zhuang)態，記憶點清除。