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Cholerny Spammer
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 Posted: Sun 22:55, 05 Dec 2010 Post subject: mbt schuhe sale Electronic Working platform integr |
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Electronic Working platform integrated analysis and design of active filter
Parameters can be determined by scanning 00 1 = O. 5k, foot production 0.5k. Figure 3 Frequency domain analysis for the exchange under the amplitude-frequency, phase-frequency characteristic curve. Din 30 storage 2. 00Frequency (Hz) Figure 3 Frequency and Phase Curves 3.2VCVS second-order high-pass (HP) when the RC network in Figure 1 y = I / R,[link widoczny dla zalogowanych], y2 = SC2, 3 = 1 / R , y = SC, it constitutes a typical second-order high-pass filter unit VCVS shown in Figure 4. Minimum number of cut-off frequency lkHz, Ar = 10, then refer to Table 1 can be primary C2 = C = 10nF, R6 = lk, R = 9.1ktl. Scanning parameters can be determined by R: = 47k, R = 15k. Figure 5 under for the exchange of frequency domain analysis of amplitude-frequency, phase frequency response curve 1kn9lkn125 【O75525 Figure 4VCVS second-order high-pass Frequency (Hz) Figure 5 Frequency and Phase Curves 3.3VCVS second order band-pass (BP) when the graph 1 RC network Y. = J/R-,[link widoczny dla zalogowanych], Y: = I / R:, Y = SC, Y = SC +1 / R, it constitutes a typical second-order band-pass filter unit VCVS, as shown in Figure 6, set the pass-band center frequency of 2kHz, A = l2, then refer to Table 1 can be primary CC = 22nF, R: lOk, Re = 12k,. Q. 5Ml Figure 6VCVS parameter second-order band-pass scanning, the final selection of R. = 15k, R = 15k, R = 10k. Figure 7 under for the exchange of frequency domain analysis of amplitude-frequency, phase-frequency characteristic curve. t02829483775e +004 F ~ quertey (Hz) Figure 7 the frequency, phase frequency response curve 3.4VCVS order band-stop (BS) when the RC network in Figure l by a band-stop characteristics of the double-T network substitution, constitutes a typical The second-order band-stop filter unit VCVS shown in Figure 8. Set the stop-band center frequency of 5kHz, AF = I, then refer to Table l can be primary C = C2 = 6.8nf, CH () 51R = 10k, R = 132 of a second-order band-stop m Figure 8VCVS Dan \) u Ⅵ o> iv: Po. pa. Hoe Chun an A) uA turtle. P) ? to 【1 37 No. 4】 9 2000 11 electric side and Instrumentation Elect ~ calM iv mem & I ~ tmmentationV0l37N0419 Midship .2 o00 parameter scan to determine the】 = f = 1k, frequency domain analysis under the current amplitude frequency, phase frequency response curve. 4 Figure 9 as cross platform high-end integrated filter circuit design and analysis of plant - ~ \: device j, \ +1- ----- 1 ------ 1 --------'; 1525J; 0.75B.50.250} a 2002 ∞ 625640% Frequency Figure 9 H-frequency, phase-frequency characteristic curve achieved by high order filter cascade method is simple, common design is one of the means. As can be heard at all levels, independent design, are adjusted each question has little effect in the EWB graphical interface combined with visual image can be observed under the parameters, indicators and transmission characteristics of the waveform, making the design work is very convenient. to second-order band-pass filter unit above a two-tier cascade, for example, the pass band center frequency is still 2kHz, pass-band frequency attenuation decibels increase, as shown in Figure 1O. To further enhance the decay rate, improve selectivity, we can see through the scanning parameters will be adjusted to 1k I.5k can, as shown in Figure l1. Figure I2 for the fourth-order band-pass VCVS, Figure I3 is The fourth-order band-pass filter when the input number 2kHz Fang Duxin output waveform that is passed only 2kHz sinusoidal signal, while the other frequency harmonics were rapidly fading. L0 sister 204S32775Frequeney (Hz) Figure l0 amplitude frequency,[link widoczny dla zalogowanych], phase frequency curve Fmquency (Hz) Figure Il amplitude frequency,[link widoczny dla zalogowanych], phase characteristic curve 12VCVS cheek fourth-order band-pass from the line transient response Figure l3 5 Conclusion With the rapid development of electronic technology and the constant improvement of means of computer simulation, electronic design automation EDA has become the mainstream of modern electronic design and development. EWB work e-work platform friendly interface and simulation environment image analysis powerful and intuitive to learn, would be a good EDA tools. References: [1], ginger, high-Dun Church . circuit and system theory 【] Higher Education Press, 19% 7 [2] Xin, Zhou Zheng. real segment of electronic design automation and training [M]. Civil Aviation of China Press, 1998, were ashamed Profile: Wu Weihua, women graduated from Hefei University of Technology ,[link widoczny dla zalogowanych], is engaged in the banquet experience teaching. Received :2000-08-27 (Wang Ning compiled and distributed) a {
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