High Power Laser and Particle Beams, Volume. 35, Issue 12, 125001(2023)
Power consumption detection circuit based on pulse width-pulse amplitude hybrid modulation strategy
Figures & Tables(9)
Fig. 3. Power consumption detection circuit functional block diagram based on PWAM technology
Fig. 4. Power consumption detection circuit schematic diagram based on PWAM technology
Fig. 5. Power detection of verification circuit based on PWAM technology
Table 1. Error analysis of power consumption detection at different frequencies
View tableView in ArticleTable 1. Error analysis of power consumption detection at different frequencies
frequency ${f_{\mathrm{s}}}$ maximum relative error ${\delta _{\max }}$ mean square error (MSE) linear fit ${R^2}$ 75 −2.78 0.314 0.9965 100 −2.64 0.237 0.9987 125 −3.04 0.403 0.9788 150 −3.26 0.491 0.9617 175 −4.43 0.515 0.9478
Table 2. Experimental data corresponding to a sampling frequency of 100 kHz
View tableView in ArticleTable 2. Experimental data corresponding to a sampling frequency of 100 kHz
drain current $ \text{ }{i}_{{\mathrm{d}}} $ drain source voltage $ \text{ }{v}_{{\mathrm{ds}}} $ true value ${P_{\mathrm{r}}}$ analog output ${V_{\mathrm{a}}}$ detected value P/W relative error $\delta $ 1 18.98 18.98 0.298 18.48 −2.64 2 14.96 29.92 0.476 29.44 −1.60 3 12.28 36.84 0.598 37.02 0.48 4 11.02 44.08 0.717 44.41 0.76 5 9.84 49.20 0.804 49.78 1.19 6 9.02 54.12 0.885 54.77 1.20 7 8.26 57.82 0.939 58.11 0.50 8 7.62 60.96 0.987 61.13 0.28 9 7.10 63.90 1.027 63.58 −0.50 10 6.54 65.40 1.043 64.57 −1.27 11 6.16 67.76 1.091 67.52 −0.35 12 5.68 68.16 1.084 67.11 −1.54 13 5.18 67.34 1.078 66.77 −0.85 14 4.72 66.08 1.069 66.18 0.15 15 4.36 65.40 1.070 66.22 1.26 16 4.06 64.96 1.045 64.67 −0.44 17 3.64 61.88 0.997 61.70 −0.29 18 3.26 58.68 0.943 58.36 −0.55 19 2.84 53.96 0.869 53.81 −0.28 20 2.34 46.80 0.753 46.59 −0.44
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Shengbo Xing, Xiuquan Ma, Changjiu Wang, Xinmin Ma. Power consumption detection circuit based on pulse width-pulse amplitude hybrid modulation strategy[J]. High Power Laser and Particle Beams, 2023, 35(12): 125001
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Received: May. 29, 2023
Accepted: Oct. 20, 2023
Published Online: Dec. 27, 2023
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