ZHCACO0A august 2014 – may 2023 MSP430I2040 , MSP430I2041
PF = 1 | 在 7.50212A、1650.7W 下校准 | ||||||
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电流基准 | 电流读数 | 电流误差 | 电流 % | 功率基准 | 功率读数 | 功率误差 | 功率 % |
0.014555 | 0.014760 | 0.000205 | 1.408% | 3.202 | 3.213 | 0.011 | 0.355% |
0.029637 | 0.029737 | 0.000100 | 0.339% | 6.517 | 6.515 | -0.002 | -0.029% |
0.074836 | 0.074950 | 0.000114 | 0.152% | 16.579 | 16.615 | 0.036 | 0.217% |
0.145378 | 0.145391 | 0.000013 | 0.009% | 31.984 | 31.992 | 0.009 | 0.027% |
0.295964 | 0.295992 | 0.000028 | 0.009% | 65.114 | 65.168 | 0.054 | 0.083% |
0.747332 | 0.747569 | 0.000237 | 0.032% | 165.104 | 165.256 | 0.152 | 0.092% |
1.500050 | 1.500000 | -0.000050 | -0.003% | 330.060 | 330.314 | 0.254 | 0.077% |
2.988460 | 2.989000 | 0.000540 | 0.018% | 662.136 | 662.586 | 0.450 | 0.068% |
7.502390 | 7.500000 | -0.002390 | -0.032% | 1650.380 | 1650.779 | 0.399 | 0.024% |
14.350000 | 14.320000 | -0.030000 | -0.209% | 3090.240 | 3084.544 | -5.696 | -0.184% |
19.321400 | 19.242000 | -0.079400 | -0.411% | 4162.290 | 4143.000 | -19.290 | -0.463% |
PF = 0.5L | 在 7.50212A、1650.7W 下校准 | ||||||
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电流基准 | 电流读数 | 电流误差 | 电流 % | 功率基准 | 功率读数 | 功率误差 | 功率 % |
0.014558 | 0.014654 | 0.000096 | 0.659% | 1.555 | 1.559 | 0.004 | 0.257% |
0.029628 | 0.029774 | 0.000146 | 0.492% | 3.173 | 3.168 | -0.005 | -0.158% |
0.074823 | 0.074824 | 0.000001 | 0.001% | 8.037 | 8.055 | 0.018 | 0.218% |
0.145166 | 0.145141 | -0.000025 | -0.017% | 13.287 | 13.298 | 0.011 | 0.083% |
0.295495 | 0.295481 | -0.000014 | -0.005% | 27.587 | 27.589 | 0.002 | 0.007% |
0.747391 | 0.747393 | 0.000002 | 0.000% | 71.399 | 71.492 | 0.093 | 0.130% |
1.500100 | 1.500000 | -0.000100 | -0.007% | 165.134 | 165.379 | 0.245 | 0.148% |
2.988390 | 2.989000 | 0.000610 | 0.020% | 319.346 | 319.745 | 0.399 | 0.125% |
7.402320 | 7.400000 | -0.002320 | -0.031% | 596.562 | 596.954 | 0.392 | 0.066% |
14.371200 | 14.354000 | -0.017200 | -0.120% | 890.268 | 889.965 | -0.303 | -0.034% |
20.021600 | 19.914000 | -0.107600 | -0.537% | 2197.230 | 2187.520 | -9.710 | -0.442% |
PF = 0.5C | 在 7.50212A、1650.7W 下校准 | ||||||
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电流基准 | 电流读数 | 电流误差 | 电流 % | 功率基准 | 功率读数 | 功率误差 | 功率 % |
0.014543 | 0.014671 | 0.000128 | 0.879% | 1.659 | 1.652 | -0.007 | -0.422% |
0.029624 | 0.029638 | 0.000014 | 0.046% | 3.388 | 3.390 | 0.002 | 0.056% |
0.074827 | 0.074848 | 0.000021 | 0.029% | 8.525 | 8.537 | 0.012 | 0.141% |
0.145314 | 0.145267 | -0.000047 | -0.032% | 18.491 | 18.503 | 0.012 | 0.068% |
0.295834 | 0.295752 | -0.000082 | -0.028% | 37.381 | 37.391 | 0.010 | 0.027% |
0.747077 | 0.747067 | -0.000010 | -0.001% | 94.044 | 94.030 | -0.014 | -0.015% |
1.481450 | 1.481000 | -0.000450 | -0.030% | 171.561 | 171.526 | -0.035 | -0.020% |
2.988510 | 2.989000 | 0.000490 | 0.016% | 345.256 | 345.311 | 0.055 | 0.016% |
7.401750 | 7.399000 | -0.002750 | -0.037% | 1025.610 | 1025.054 | -0.556 | -0.054% |
14.334700 | 14.318000 | -0.016700 | -0.117% | 2196.370 | 2190.308 | -6.062 | -0.276% |
19.304000 | 19.241000 | -0.063000 | -0.326% | 2965.780 | 2951.400 | -14.380 | -0.485% |
在图 11-1 中,图形表明在较高的电流下误差开始变为负值。这种现象是分流器被流经板上引线的电流加热所致。在低电流下,较高的误差主要是由导致读数不稳定的噪声引起的。
电压 (V) | 电流 (A) | 功率 (W) | |||||||
---|---|---|---|---|---|---|---|---|---|
温度/C | V | Vref | V% | I | Iref | I% | P | Pref | P% |
0 | 219.786 | 219.991 | -0.093% | 5.005 | 5.000 | 0.097% | 1100.730 | 1099.940 | 0.072% |
5 | 219.728 | 219.978 | -0.114% | 5.005 | 5.000 | 0.088% | 1099.470 | 1099.860 | -0.035% |
10 | 219.801 | 219.992 | -0.087% | 5.005 | 5.000 | 0.082% | 1100.050 | 1100.040 | 0.001% |
15 | 219.839 | 219.997 | -0.072% | 5.004 | 5.000 | 0.072% | 1100.110 | 1100.020 | 0.008% |
20 | 219.896 | 220.013 | -0.053% | 5.003 | 5.000 | 0.053% | 1100.120 | 1099.920 | 0.018% |
25 | 219.883 | 219.954 | -0.032% | 5.002 | 5.000 | 0.025% | 1100.050 | 1099.830 | 0.020% |
30 | 219.951 | 220.021 | -0.032% | 4.998 | 5.000 | -0.040% | 1099.680 | 1099.930 | -0.023% |
35 | 219.990 | 220.060 | -0.032% | 4.996 | 5.000 | -0.088% | 1099.290 | 1099.960 | -0.061% |
40 | 220.012 | 220.021 | -0.004% | 4.993 | 5.000 | -0.142% | 1098.910 | 1100.060 | -0.105% |
45 | 220.060 | 220.054 | 0.003% | 4.991 | 5.000 | -0.193% | 1098.330 | 1099.840 | -0.137% |
50 | 220.054 | 220.053 | 0.000% | 4.988 | 5.000 | -0.256% | 1097.580 | 1099.920 | -0.213% |
55 | 220.026 | 219.996 | 0.014% | 4.983 | 5.000 | -0.343% | 1096.890 | 1099.910 | -0.275% |
60 | 220.050 | 220.027 | 0.010% | 4.979 | 5.000 | -0.427% | 1095.800 | 1099.890 | -0.372% |
65 | 220.009 | 220.051 | -0.019% | 4.974 | 5.000 | -0.522% | 1094.700 | 1100.020 | -0.484% |
70 | 219.968 | 219.995 | -0.012% | 4.969 | 5.000 | -0.630% | 1093.210 | 1099.940 | -0.612% |
75 | 219.896 | 219.973 | -0.035% | 4.969 | 5.000 | -0.629% | 1093.060 | 1100.030 | -0.634% |
80 | 219.892 | 219.952 | -0.027% | 4.969 | 5.000 | -0.637% | 1092.600 | 1099.960 | -0.669% |
85 | 219.895 | 219.957 | -0.028% | 4.968 | 5.004 | -0.704% | 1092.840 | 1099.910 | -0.643% |
在图 11-2 中,图形表明在较高的温度下误差开始变为负值。这种现象是板温度升高以及整个板的组合温度系数生效所致。