% Figure 7. Measured absolute temperature for the estimated transistor % junction temperature and heatsink (touch) temperature with 150W power % dissipation for 50 cm length heatsink clear FontSize = 28; % Temperature Measurments Data T_150 = [ 0 27.44 27.53 28.96 27.61 30 28.73 28.85 28.98 27.6 60 30.47 30.62 29.06 27.6 90 31.78 31.96 29.16 27.6 120 32.88 33.19 29.26 27.61 150 34.01 34.31 29.38 27.61 180 35 35.43 29.51 27.61 210 35.83 36.49 29.64 27.62 240 37.09 37.53 29.79 27.62 270 38.03 38.54 29.95 27.63 300 38.92 39.54 30.12 27.63 330 39.85 40.5 30.29 27.65 360 40.59 41.41 30.48 27.66 390 41.49 42.32 30.67 27.67 420 42.33 43.22 30.87 27.66 450 43.22 44.09 31.09 27.68 480 43.99 44.93 31.32 27.7 510 44.86 45.75 31.54 27.72 540 45.53 46.55 31.77 27.75 570 46.25 47.35 31.99 27.77 600 46.97 48.11 32.21 27.81 630 47.54 48.86 32.44 27.83 660 48.25 49.58 32.66 27.86 690 49.08 50.29 32.89 27.9 720 49.69 51.01 33.12 27.92 750 50.3 51.7 33.35 27.96 780 50.99 52.38 33.58 28 810 51.5 53.05 33.81 28.04 840 52.23 53.66 34.03 28.05 870 52.83 54.3 34.27 28.09 900 53.42 54.93 34.5 28.14 930 54.05 55.52 34.74 28.19 960 54.42 56.11 34.98 28.23 990 54.9 56.71 35.21 28.28 1020 55.36 57.24 35.45 28.33 1050 56.03 57.8 35.69 28.38 1080 56.83 58.33 35.93 28.43 1110 57.05 58.86 36.17 28.49 1140 57.39 59.39 36.4 28.54 1170 57.86 59.89 36.64 28.59 1200 58.03 60.36 36.87 28.65 1230 58.79 60.82 37.09 28.68 1260 58.88 61.28 37.32 28.74 1290 59.5 61.74 37.55 28.79 1320 60.07 62.21 37.77 28.85 1350 60.29 62.66 37.99 28.91 1380 60.71 63.05 38.21 28.97 1410 61.18 63.46 38.42 29.04 1440 61.32 63.88 38.64 29.09 1470 62.05 64.27 38.85 29.16 1500 62.47 64.63 39.07 29.22 1530 62.83 65.04 39.28 29.29 1560 62.77 65.4 39.48 29.35 1590 63.32 65.78 39.69 29.42 1620 63.81 66.16 39.9 29.48 1650 64.21 66.49 40.1 29.55 1680 64.41 66.85 40.3 29.61 1710 64.83 67.22 40.49 29.65 1740 65.14 67.56 40.69 29.71 1770 65.32 67.85 40.89 29.78 1800 65.66 68.2 41.09 29.85 1830 66.04 68.52 41.28 29.92 1860 65.91 68.82 41.47 29.98 1890 66.05 69.08 41.66 30.04 1920 66.53 69.37 41.86 30.11 1950 67.11 69.68 42.05 30.18 1980 67.43 69.98 42.23 30.24 2010 67.64 70.27 42.42 30.31 2040 67.82 70.54 42.6 30.38 2070 68.04 70.83 42.78 30.45 2100 68.36 71.11 42.96 30.52 2130 68.55 71.35 43.14 30.59 2160 68.8 71.62 43.32 30.65 2190 69.05 71.88 43.49 30.71 2220 69.19 72.1 43.67 30.78 2250 69.46 72.35 43.85 30.84 2280 69.76 72.52 44.01 30.89 2310 70.05 72.79 44.17 30.95 2340 70.13 73.03 44.34 31.01 2370 70.28 73.19 44.5 31.08 2400 70.48 73.41 44.66 31.15 2430 70.77 73.63 44.83 31.22 2460 70.82 73.86 44.98 31.28 2490 70.49 73.97 45.13 31.35 2520 70.73 74.13 45.29 31.41 2550 71.29 74.34 45.44 31.49 2580 71.55 74.57 45.59 31.55 2610 71.79 74.76 45.73 31.62 2640 71.93 74.96 45.88 31.69 2670 71.9 75.15 46.02 31.75 2700 72.19 75.3 46.16 31.81 2730 72.37 75.49 46.3 31.89 2760 72.56 75.66 46.45 31.95 2790 72.83 75.83 46.57 32.02 2820 72.9 76.01 46.71 32.08 2850 72.56 76.09 46.85 32.17 2880 73.15 76.27 46.98 32.24 2910 73.3 76.44 47.11 32.31 2940 73.54 76.6 47.24 32.37 2970 73.67 76.76 47.37 32.43 3000 73.53 76.9 47.5 32.5 3030 73.55 76.99 47.62 32.57 3060 73.58 77.15 47.75 32.64 3090 74 77.3 47.87 32.67 3120 74.13 77.41 47.98 32.73 3150 74.05 77.56 48.1 32.79 3180 74.4 77.63 48.22 32.85 3210 74.17 77.75 48.35 32.91 3240 74.29 77.79 48.46 32.97 3270 74.45 77.95 48.57 33.03 3300 74.21 77.97 48.68 33.1 3330 74.43 78.08 48.8 33.15 3360 74.76 78.22 48.9 33.21 3390 74 78.17 49.02 33.26 3420 74.5 78.26 49.12 33.32 3450 74.63 78.34 49.22 33.37 3480 74.71 78.49 49.32 33.42 3510 74.96 78.6 49.42 33.47 3540 75.46 78.74 49.52 33.53 3570 75.11 78.79 49.62 33.58 3600 75.23 78.85 49.72 33.63 3630 75.53 78.98 49.81 33.69 3660 75.81 79.11 49.91 33.74 3690 76.18 79.21 50 33.79 3720 75.27 79.22 50.1 33.85 3750 75.15 79.29 50.2 33.9 3780 75.91 79.41 50.29 33.94 3810 76.05 79.51 50.38 33.99 3840 75.91 79.57 50.47 34.04 3870 76.24 79.7 50.56 34.09 3900 76.31 79.78 50.64 34.14 3930 76.15 79.85 50.73 34.19 3960 75.96 79.85 50.82 34.24 3990 76.18 79.96 50.9 34.29 4020 76.22 79.99 50.99 34.33 4050 76.52 80.07 51.07 34.38 4080 76.77 80.17 51.15 34.43 4110 76.65 80.23 51.24 34.49 4140 76.71 80.29 51.31 34.54 4170 76.7 80.34 51.4 34.58 4200 76.73 80.43 51.47 34.62 4230 76.89 80.5 51.55 34.66 4260 76.42 80.43 51.63 34.71 4290 76.49 80.51 51.71 34.76 4320 76.42 80.56 51.79 34.81 4350 76.24 80.54 51.86 34.85 4380 77.09 80.66 51.92 34.89 4410 77.26 80.75 51.99 34.93 4440 77.05 80.79 52.06 34.98 4470 77.11 80.8 52.13 35 4500 77.61 80.9 52.21 35.03 4530 77.59 80.99 52.27 35.07 4560 77.5 81.06 52.34 35.11 4590 77.73 81.14 52.41 35.15 4620 77.53 81.15 52.48 35.21 4650 77.83 81.21 52.54 35.23 4680 77.75 81.3 52.61 35.28 4710 77.74 81.34 52.67 35.32 4740 77.79 81.36 52.75 35.36 4770 77.83 81.44 52.8 35.4 4800 78.04 81.49 52.87 35.44 4830 78.02 81.54 52.94 35.49 4860 78.23 81.59 53 35.52 4890 78.17 81.65 53.06 35.57 4920 77.94 81.68 53.12 35.61 4950 78 81.69 53.19 35.65 4980 78.23 81.76 53.25 35.69 5010 77.65 81.71 53.3 35.74 5040 78.05 81.8 53.37 35.78 5070 77.53 81.76 53.42 35.82 5100 78.05 81.81 53.48 35.87 5130 77.4 81.72 53.54 35.9 5160 77.81 81.83 53.59 35.94 5190 78.17 81.81 53.64 35.98 5220 78.1 81.87 53.7 36.02 5250 77.83 81.86 53.74 36.05 5280 77.97 81.84 53.8 36.08 5310 77.96 81.91 53.84 36.12 5340 78.27 81.95 53.88 36.18 5370 78.73 82.02 53.94 36.19 5400 78.74 82.09 53.98 36.2 5430 78.23 82.11 54.03 36.22 5460 78.59 82.16 54.08 36.25 5490 78.52 82.18 54.13 36.28 5520 78.62 82.26 54.17 36.31 5550 78.76 82.28 54.22 36.33 5580 78.72 82.33 54.27 36.38 5610 78.85 82.37 54.31 36.41 5640 78.83 82.39 54.36 36.47 5670 78.88 82.42 54.4 36.5 5700 78.93 82.48 54.46 36.51 5730 79.00 82.5 54.49 36.55 5760 78.76 82.56 54.54 36.58 5790 78.78 82.53 54.58 36.61 5820 78.83 82.57 54.64 36.61 5850 78.97 82.55 54.68 36.64 5880 78.88 82.56 54.72 36.65 5910 78.84 82.59 54.76 36.68 5940 78.85 82.62 54.8 36.72 5970 78.97 82.67 54.84 36.72 6000 79.12 82.63 54.88 36.76 6030 79.21 82.66 54.92 36.79 6060 79.04 82.69 54.96 36.8 6090 79.26 82.62 55 36.82 6120 79.16 82.66 55.04 36.86 6150 79.38 82.68 55.09 36.88 6180 79.34 82.63 55.12 36.91 6210 79.3 82.65 55.16 36.94 6240 79.59 82.67 55.2 36.96 6270 79.57 82.65 55.24 36.96 6300 79.37 82.61 55.27 37 6330 79.28 82.67 55.31 37.03 6360 79.47 82.64 55.35 37.06 6390 79.54 82.65 55.4 37.11 6420 79.6 82.66 55.43 37.12 6450 79.51 82.62 55.47 37.13 6480 79.49 82.68 55.51 37.16 6510 79.28 82.65 55.54 37.21 6540 79.45 82.66 55.58 37.21 6570 79.29 82.69 55.62 37.24 6600 79.37 82.63 55.65 37.25 6630 79.58 82.65 55.69 37.27 6660 79.79 82.68 55.73 37.29 6690 79.59 82.69 55.75 37.33 6720 79.54 82.62 55.78 37.35 6750 79.76 82.54 55.82 37.37 6780 79.72 82.66 55.85 37.39 6810 79.79 82.58 55.88 37.4 6840 79.62 82.52 55.92 37.42 6870 79.74 82.61 55.95 37.45 6900 79.82 82.53 55.97 37.46 6930 79.88 82.67 56 37.47 6960 79.88 82.57 56.04 37.49 6990 79.63 82.61 56.08 37.51 7020 79.63 82.55 56.11 37.54 7050 78.94 82.62 56.13 37.57 7080 79.47 82.54 56.16 37.59 7110 79.57 82.65 56.19 37.61 7140 79.63 82.53 56.21 37.64 7170 79.89 82.67 56.24 37.66 7200 79.91 82.52 56.27 37.68 7230 79.91 82.65 56.3 37.7 7260 79.65 82.55 56.32 37.71 7290 79.75 82.63 56.35 37.74 7320 79.19 82.52 56.38 37.75 7350 78.92 82.62 56.41 37.77 7380 79.13 82.54 56.42 37.78 7410 79.15 82.67 56.46 37.8 7440 79.25 82.57 56.47 37.83 7470 79.28 82.65 56.5 37.83 7500 79.08 82.51 56.51 37.85 7530 79.45 82.6 56.54 37.86 7560 79.63 82.54 56.55 37.88 7590 79.64 82.61 56.58 37.91 7620 79.53 82.5 56.6 37.91 7650 79.47 82.62 56.61 37.93 7680 79.3 82.57 56.64 37.94 7710 79.07 82.61 56.66 37.96 7740 79.19 82.52 56.67 37.97 7770 79.78 82.62 56.7 37.98 7800 79.04 82.54 56.71 38 7830 79.77 82.66 56.73 38.01 7860 79.21 82.53 56.74 38.02 7890 79.85 82.65 56.76 38.04 7920 79.68 82.54 56.77 38.03 7950 79.67 82.68 56.78 38.04 7980 79.84 82.59 56.81 38.03 8010 79.75 82.63 56.81 38.05 8040 79.65 82.54 56.81 38.05 8070 79.96 82.66 56.82 38.07 8100 79.67 82.63 56.85 38.08 8130 79.67 82.92 56.85 38.08 8160 79.75 82.5 56.86 38.1 8190 79.82 82.98 56.88 38.1 8220 79.71 82.97 56.89 38.11 8250 79.93 82.98 56.91 38.11 8280 79.4 82.89 56.92 38.11 8310 79.69 82.95 56.93 38.13 8340 79.56 82.91 56.93 38.14 8370 79.07 82.8 56.95 38.15 8400 79.99 82.92 56.96 38.16 8430 79.63 82.96 56.97 38.17 8460 79.6 82.9 56.97 38.17 8490 79.7 82.91 56.99 38.17 8520 79.54 82.9 57.01 38.18 8550 79.31 82.84 57.01 38.19 8580 79.08 82.81 57.02 38.19 8610 79.05 82.81 57.03 38.2 8640 79.54 82.84 57.04 38.22 8670 79.06 82.88 57.05 38.22 8700 79.12 82.89 57.05 38.23 8730 79.54 82.84 57.07 38.23 8760 79.46 82.83 57.08 38.23 8790 79.47 82.74 57.09 38.24 8820 79.25 82.77 57.1 38.26 8850 79.54 82.82 57.12 38.26 8880 79.24 82.77 57.12 38.26 8910 79.97 82.72 57.13 38.27 8940 79.18 82.74 57.13 38.27 8970 79.26 82.71 57.13 38.28 9000 79.97 82.6 57.15 38.3 9030 79.21 82.6 57.16 38.3 9060 79.76 82.6 57.16 38.31 9090 79.91 82.63 57.17 38.32 9120 79.21 82.62 57.17 38.32 9150 79.67 82.66 57.18 38.33 9180 79.27 82.63 57.2 38.33 9210 79.27 82.59 57.2 38.33 9240 79.16 82.56 57.2 38.34 9270 79.75 82.55 57.21 38.35 9300 79.16 82.55 57.22 38.35 9330 79.1 82.57 57.23 38.35 9360 79.25 82.6 57.24 38.37 9390 79.09 82.56 57.24 38.36 9420 78.99 82.5 57.24 38.37 9450 79.06 82.48 57.25 38.38 9480 79.47 82.54 57.25 38.38 9510 79.44 82.56 57.27 38.39 9540 79.69 82.55 57.28 38.38 9570 79.13 82.47 57.29 38.4 9600 79.56 82.51 57.29 38.4 9630 79.92 82.56 57.29 38.4 9660 79.01 82.48 57.31 38.41 9690 79.19 82.48 57.31 38.42 9720 79.41 82.49 57.32 38.42 9750 79.14 82.49 57.33 38.42 9780 79.4 82.49 57.33 38.42 9810 79.21 82.47 57.34 38.43 9840 79.59 82.56 57.35 38.45 9870 79.99 82.55 57.36 38.45 9900 79.31 82.47 57.36 38.45 9930 79.9 82.57 57.37 38.46 9960 79.11 82.5 57.38 38.46 9990 79.04 82.47 57.4 38.48 10020 79.38 82.5 57.4 38.48 10050 79.66 82.55 57.4 38.48 10080 79.34 82.56 57.42 38.49 10110 79.32 82.51 57.42 38.5 10140 79.12 82.54 57.44 38.5 10170 79.16 82.47 57.44 38.5 10200 79.45 82.56 57.44 38.51 10230 79.38 82.51 57.44 38.52 10260 79.18 82.46 57.46 38.52 10290 79.63 82.52 57.47 38.52 10320 79.62 82.55 57.47 38.53 10350 79.42 82.52 57.48 38.53 10380 79.75 82.55 57.48 38.54 10410 79.76 82.58 57.49 38.55 10440 79.39 82.58 57.5 38.55 10470 79.28 82.52 57.52 38.56 10500 79.68 82.57 57.52 38.55 10530 79.35 82.56 57.52 38.56 10560 79.32 82.48 57.53 38.56 10590 79.88 82.64 57.55 38.58 10620 79.51 82.59 57.56 38.59 10650 79.63 82.6 57.57 38.59 10680 79.73 82.67 57.57 38.6 10710 79.69 82.71 57.58 38.6 10740 79.39 82.64 57.59 38.6 10770 79.55 82.69 57.6 38.6 10800 79.79 82.58 57.61 38.62 10830 79.1 82.59 57.61 38.63 10860 79.17 82.6 57.63 38.64 10890 79.82 82.5 57.64 38.64 10920 79.22 82.58 57.64 38.65 ]; figure(7); clf; P = 150; Time = 0:150:10800; T_HS_150 = [24 35.2 39.3 43.2 46.8 50.1 53.2 56 58.7 61 63 64.9 66.8 68.4 69.9 71.2 ... 72.4 73.3 74.4 75.3 76.2 76.9 77.4 77.9 78.4 78.8 79.2 79.5 79.8 80.1 80.4 ... 80.8 81.1 81.4 81.5 81.6 81.7 82 82.2 82.4 82.5 82.8 83 83.1 83.2 83.3 83.4 ... 83.5 83.5 83.4 83.3 83.3 83.1 83.1 83.1 83.1 83.2 83.2 83.2 83.2 83.5 83.5 ... 83.3 83.3 83.4 83.3 83.4 83.4 83.3 83.3 83.3 83.4 83.5 ]; T_C_150 = [24 35.2 42.1 46.5 50.4 53.8 56.9 59.7 62.1 64.4 66.4 68.2 69.9 71.2 72.7 73.9 ... 75 75.9 76.9 77.7 78.5 79.2 79.7 80.1 80.5 81 81.3 81.6 81.9 82.1 82.5 82.8 83.1 ... 83.3 83.5 83.5 83.8 84 84.1 84.3 84.4 84.6 84.8 84.9 85 85.1 85.2 85.2 85.2 85.2 ... 85.1 85.1 85.1 85.1 85.1 85.3 85.3 85.3 85.5 85.5 85.5 85.5 85.5 85.4 85.4 85.4 ... 85.5 85.4 85.4 85.4 85.5 85.5 85.5 ]; T_J_150 = T_C_150 + 150 * (0.24 / 16) * 0.96 - 3; hold on plot(Time,[T_J_150],'-','LineWidth',2) plot(T_150(:,1),[T_150(:,2) * 0.96]-4, '-','LineWidth',2); hold off legend('Estimated Junction Temperature.','Heatsink Touch Temperature','Location','SouthEast')%,'FontSize',FontSize); xlabel('Time [s]','FontSize',FontSize); ylabel('Temperature [^oC]','FontSize',FontSize); FH = gca; FH.FontSize = FontSize - 2; FH.FontName = 'Times New Roman'; FH.XLim = [0 10800]; grid