本申請的(de)實施(shi)例(li)涉及針對路由電阻引起的(de)誤(wu)差(cha)的(de)校準的(de)設(she)備和方法。
背景技術:
1、參數測量(liang)(liang)單元(pmu)為一(yi)種形式的自動測試設備(bei)(ate)。在一(yi)些操作模式中,pmu在耦合到(dao)受測試裝(zhuang)置(dut)的端(duan)(duan)子的輸出引腳處(chu)提供(gong)電(dian)(dian)(dian)(dian)壓(ya)。pmu提供(gong)電(dian)(dian)(dian)(dian)壓(ya)作為強制電(dian)(dian)(dian)(dian)壓(ya)以測量(liang)(liang)在所(suo)述電(dian)(dian)(dian)(dian)壓(ya)的存(cun)在下(xia)dut的響應(ying)。電(dian)(dian)(dian)(dian)壓(ya)可(ke)被稱作強制電(dian)(dian)(dian)(dian)壓(ya)。存(cun)在于dut的端(duan)(duan)子處(chu)的值(zhi)可(ke)由pmu測量(liang)(liang)。
技術實現思路
1、在一些實例中(zhong),一種設備包含電(dian)(dian)(dian)流(liu)感(gan)(gan)測(ce)(ce)電(dian)(dian)(dian)路、電(dian)(dian)(dian)壓(ya)放(fang)(fang)大(da)(da)器(qi)、可(ke)調(diao)(diao)(diao)諧跨導放(fang)(fang)大(da)(da)器(qi)和電(dian)(dian)(dian)壓(ya)感(gan)(gan)測(ce)(ce)電(dian)(dian)(dian)路。電(dian)(dian)(dian)流(liu)感(gan)(gan)測(ce)(ce)電(dian)(dian)(dian)路具(ju)有(you)輸(shu)(shu)出(chu)端(duan)(duan)(duan)子。電(dian)(dian)(dian)壓(ya)放(fang)(fang)大(da)(da)器(qi)具(ju)有(you)耦合到(dao)電(dian)(dian)(dian)流(liu)感(gan)(gan)測(ce)(ce)電(dian)(dian)(dian)路的(de)(de)輸(shu)(shu)出(chu)端(duan)(duan)(duan)子的(de)(de)負輸(shu)(shu)入端(duan)(duan)(duan)子。可(ke)調(diao)(diao)(diao)諧跨導放(fang)(fang)大(da)(da)器(qi)具(ju)有(you)輸(shu)(shu)入端(duan)(duan)(duan)子和輸(shu)(shu)出(chu)端(duan)(duan)(duan)子。可(ke)調(diao)(diao)(diao)諧跨導放(fang)(fang)大(da)(da)器(qi)的(de)(de)輸(shu)(shu)入端(duan)(duan)(duan)子耦合到(dao)電(dian)(dian)(dian)流(liu)感(gan)(gan)測(ce)(ce)電(dian)(dian)(dian)路的(de)(de)輸(shu)(shu)出(chu)端(duan)(duan)(duan)子。電(dian)(dian)(dian)壓(ya)感(gan)(gan)測(ce)(ce)電(dian)(dian)(dian)路具(ju)有(you)第(di)一信(xin)號(hao)輸(shu)(shu)入端(duan)(duan)(duan)子、第(di)二信(xin)號(hao)輸(shu)(shu)入端(duan)(duan)(duan)子、第(di)三輸(shu)(shu)入端(duan)(duan)(duan)子和輸(shu)(shu)出(chu)端(duan)(duan)(duan)子。電(dian)(dian)(dian)壓(ya)感(gan)(gan)測(ce)(ce)電(dian)(dian)(dian)路的(de)(de)第(di)三輸(shu)(shu)入端(duan)(duan)(duan)子耦合到(dao)可(ke)調(diao)(diao)(diao)諧跨導放(fang)(fang)大(da)(da)器(qi)的(de)(de)輸(shu)(shu)出(chu)端(duan)(duan)(duan)子。
2、在(zai)一(yi)些實例中,一(yi)種設備包含電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流感測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)放(fang)大(da)器、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)感測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)和(he)可(ke)調諧跨導放(fang)大(da)器。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流感測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)經配置以測(ce)(ce)量(liang)dut的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流以提(ti)供(gong)(gong)第(di)一(yi)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao),所述第(di)一(yi)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)具有(you)表示dut的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)放(fang)大(da)器耦合到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流感測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)并且經配置以基于(yu)第(di)三信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)和(he)第(di)四(si)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)將(jiang)第(di)二(er)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)提(ti)供(gong)(gong)到(dao)dut,其(qi)中第(di)二(er)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)為第(di)三信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)與第(di)一(yi)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)之間的(de)差分放(fang)大(da)的(de)結果。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)感測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)經配置以在(zai)連(lian)接器處測(ce)(ce)量(liang)dut的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)以提(ti)供(gong)(gong)第(di)四(si)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)。可(ke)調諧跨導放(fang)大(da)器耦合到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流感測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)感測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)。跨導放(fang)大(da)器經配置以將(jiang)第(di)五(wu)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)作為校準信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)提(ti)供(gong)(gong)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)感測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)。可(ke)調諧跨導放(fang)大(da)器根據第(di)一(yi)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)和(he)調諧代碼確定第(di)五(wu)信(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)(hao)。
3、在一些實例中,一種執行耦合到連(lian)(lian)接(jie)器的(de)(de)(de)(de)(de)dut的(de)(de)(de)(de)(de)測(ce)量的(de)(de)(de)(de)(de)方(fang)法包含(han)(han)確定表示dut的(de)(de)(de)(de)(de)電(dian)(dian)流的(de)(de)(de)(de)(de)第(di)一電(dian)(dian)壓(ya)信(xin)號(hao),所述電(dian)(dian)流流過連(lian)(lian)接(jie)器。所述方(fang)法還(huan)包含(han)(han)確定表示如在連(lian)(lian)接(jie)器處提(ti)供的(de)(de)(de)(de)(de)dut的(de)(de)(de)(de)(de)電(dian)(dian)壓(ya)的(de)(de)(de)(de)(de)第(di)二電(dian)(dian)壓(ya)信(xin)號(hao)。所述方(fang)法還(huan)包含(han)(han)根據(ju)(ju)第(di)一電(dian)(dian)壓(ya)信(xin)號(hao)確定校準電(dian)(dian)流。所述方(fang)法還(huan)包含(han)(han)根據(ju)(ju)校準電(dian)(dian)流修改dut的(de)(de)(de)(de)(de)測(ce)量。
1.一種設(she)備,其包(bao)括:
2.根據權利要求1所述的設備(bei),其中所述電壓(ya)感測電路包含:
3.根據權利(li)要求1所(suo)述的設備,其中所(suo)述電壓感測電路(lu)包含(han):
4.根(gen)據權利要求1所述的設備,其進一步包括:
5.根據權利要求4所(suo)述的設備,其中(zhong)所(suo)述設備進一步包括:
6.根據(ju)權利要求5所(suo)(suo)述的(de)設備,其中所(suo)(suo)述可控制電壓源包含:
7.根據(ju)權利(li)要求6所(suo)述(shu)(shu)(shu)(shu)(shu)的(de)設備(bei),其中(zhong)所(suo)述(shu)(shu)(shu)(shu)(shu)可調(diao)諧(xie)跨導放(fang)大(da)器(qi)(qi)(qi)(qi)(qi)具有調(diao)諧(xie)輸(shu)入端(duan)(duan)子(zi),并且所(suo)述(shu)(shu)(shu)(shu)(shu)設備(bei)進一(yi)(yi)步包括(kuo)控制(zhi)(zhi)(zhi)器(qi)(qi)(qi)(qi)(qi),所(suo)述(shu)(shu)(shu)(shu)(shu)控制(zhi)(zhi)(zhi)器(qi)(qi)(qi)(qi)(qi)具有第(di)(di)一(yi)(yi)輸(shu)出(chu)(chu)端(duan)(duan)子(zi)、第(di)(di)二輸(shu)出(chu)(chu)端(duan)(duan)子(zi)和第(di)(di)三(san)輸(shu)出(chu)(chu)端(duan)(duan)子(zi),其中(zhong)所(suo)述(shu)(shu)(shu)(shu)(shu)控制(zhi)(zhi)(zhi)器(qi)(qi)(qi)(qi)(qi)的(de)所(suo)述(shu)(shu)(shu)(shu)(shu)第(di)(di)一(yi)(yi)輸(shu)出(chu)(chu)端(duan)(duan)子(zi)耦(ou)合(he)到所(suo)述(shu)(shu)(shu)(shu)(shu)可調(diao)諧(xie)跨導放(fang)大(da)器(qi)(qi)(qi)(qi)(qi)的(de)所(suo)述(shu)(shu)(shu)(shu)(shu)調(diao)諧(xie)輸(shu)入端(duan)(duan)子(zi),所(suo)述(shu)(shu)(shu)(shu)(shu)控制(zhi)(zhi)(zhi)器(qi)(qi)(qi)(qi)(qi)的(de)所(suo)述(shu)(shu)(shu)(shu)(shu)第(di)(di)二輸(shu)出(chu)(chu)端(duan)(duan)子(zi)耦(ou)合(he)到所(suo)述(shu)(shu)(shu)(shu)(shu)第(di)(di)一(yi)(yi)dac的(de)所(suo)述(shu)(shu)(shu)(shu)(shu)輸(shu)入端(duan)(duan)子(zi),并且所(suo)述(shu)(shu)(shu)(shu)(shu)控制(zhi)(zhi)(zhi)器(qi)(qi)(qi)(qi)(qi)的(de)所(suo)述(shu)(shu)(shu)(shu)(shu)第(di)(di)三(san)輸(shu)出(chu)(chu)端(duan)(duan)子(zi)耦(ou)合(he)到所(suo)述(shu)(shu)(shu)(shu)(shu)第(di)(di)二dac的(de)所(suo)述(shu)(shu)(shu)(shu)(shu)輸(shu)入端(duan)(duan)子(zi)。
8.根據權利要求5所述的設(she)備,其中(zhong)所述電流感測電路包含:
9.一種設備,其包(bao)括:
10.根據權(quan)利要求9所述的設備,其中所述調諧代碼(ma)是響應于(yu)所述連接(jie)器的電阻而確(que)定的。
11.根(gen)據權(quan)利要(yao)求10所(suo)(suo)述的設備,其(qi)中(zhong)所(suo)(suo)述調諧(xie)代(dai)碼具(ju)有根(gen)據k*2x確定(ding)(ding)的值(zhi),其(qi)中(zhong)x為所(suo)(suo)述調諧(xie)代(dai)碼的位數目(mu),并且k是根(gen)據所(suo)(suo)述連(lian)接(jie)器的所(suo)(suo)述電阻除以最(zui)大連(lian)接(jie)器電阻值(zhi)而確定(ding)(ding)的。
12.根據權利要(yao)求9所述(shu)的設備(bei),其中所述(shu)設備(bei)進一(yi)步包括:數(shu)模轉換器,其經配置以(yi)接收數(shu)字代(dai)碼(ma)并且(qie)提供具有根據所述(shu)數(shu)字代(dai)碼(ma)確定的值(zhi)的第(di)七信號;以(yi)及
13.根(gen)據(ju)權(quan)利(li)要(yao)求(qiu)12所(suo)述(shu)的設備,其進一(yi)步包括控制器(qi),其中所(suo)述(shu)控制器(qi)經配(pei)置以提供所(suo)述(shu)調(diao)諧代碼(ma)和(he)所(suo)述(shu)數字代碼(ma)。
14.一種執行(xing)耦合到(dao)連(lian)接器的(de)受測試裝置dut的(de)測量的(de)方法(fa),其包括:
15.根據權利要求14所(suo)(suo)述的方法,其進一步包括(kuo)根據可調(diao)諧跨導(dao)(dao)放大器(qi)確(que)定所(suo)(suo)述校準電(dian)流,所(suo)(suo)述可調(diao)諧跨導(dao)(dao)放大器(qi)能夠根據響(xiang)應于(yu)所(suo)(suo)述連接器(qi)的電(dian)阻確(que)定的數字代碼而調(diao)諧。
16.根(gen)據(ju)權利要(yao)求(qiu)15所(suo)述(shu)的方法,其中所(suo)述(shu)數(shu)字代碼被確定(ding)(ding)為具有k*2x的值,其中x為所(suo)述(shu)數(shu)字代碼的位(wei)數(shu)目,并且k是根(gen)據(ju)所(suo)述(shu)連接器的電阻除(chu)以最大連接器電阻值而確定(ding)(ding)的。
17.根據權利要求(qiu)14所述的方法,其進一步(bu)包括在所述連接器處提(ti)供強制電壓。
18.根(gen)據權利(li)要求(qiu)17所述的方法,其進(jin)一(yi)步包(bao)括(kuo)通過(guo)根(gen)據所述校(xiao)準電流修(xiu)(xiu)改所述強(qiang)制電壓(ya)的值來修(xiu)(xiu)改所述dut的測(ce)量。
19.根(gen)據權利要求14所述的方(fang)法,其進一步包括通(tong)過根(gen)據所述校準(zhun)電流修改所述第二電壓信號的確定來修改所述dut的測(ce)量。
20.根據權利要求14所(suo)述的方(fang)法,其(qi)進(jin)一(yi)(yi)步包括(kuo)確(que)定與所(suo)述連接器的寄生電(dian)阻(zu)成比例(li)(li)并且與所(suo)述第一(yi)(yi)電(dian)壓信號(hao)成比例(li)(li)的所(suo)述校準電(dian)流(liu)。