М.А. Амелина - Конспект лекций по курсу - Компьютерный анализ и синтез электронных устройств, страница 21
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ɉɨɫɥɟ ɧɚɠɚɬɢɹ ɤɥɚɜɢɲɢ ɋ ɜ ɧɢɠɧɟɣɱɚɫɬɢ ɝɪɚɮɢɱɟɫɤɨɝɨ ɨɤɧɚ ɫɩɪɚɜɚ ɨɬ ɨɛɨɡɧɚɱɟɧɢɹ ɤɚɠɞɨɣ ɩɟɪɟɦɟɧɧɨɣ ɜɵɜɨɞɹɬɫɹ ɢɯ ɬɟɤɭɳɢɟɱɢɫɥɟɧɧɵɟ ɡɧɚɱɟɧɢɹ. ɗɬɨɬ ɫɩɨɫɨɛ ɭɞɨɛɟɧ ɞɥɹ ɤɨɧɬɪɨɥɹ ɡɚ ɞɥɢɬɟɥɶɧɵɦɢ ɪɚɫɱɟɬɚɦɢ ɩɟɪɟɞɚɬɨɱɧɵɯ ɮɭɧɤɰɢɣ, ɞɢɚɩɚɡɨɧ ɢɡɦɟɧɟɧɢɹ ɤɨɬɨɪɵɯ ɡɚɪɚɧɟɟ ɧɟ ɢɡɜɟɫɬɟɧ (ɬɚɤ ɱɬɨ ɬɟɤɭɳɢɟ ɪɟɡɭɥɶɬɚɬɵɦɨɝɭɬ ɛɵɬɶ ɧɟ ɜɢɞɧɵ ɧɚ ɷɤɪɚɧɟ). Ɉɞɧɚɤɨ ɦɨɞɟɥɢɪɨɜɚɧɢɟ ɩɪɢ ɷɬɨɦ ɡɧɚɱɢɬɟɥɶɧɨ ɡɚɦɟɞɥɹɟɬɫɹ,ɩɨɷɬɨɦɭ ɩɨɫɥɟ ɩɪɨɫɦɨɬɪɚ ɧɚɢɛɨɥɟɟ ɢɧɬɟɪɟɫɧɨɝɨ ɮɪɚɝɦɟɧɬɚ ɞɚɧɧɵɯ ɫɥɟɞɭɟɬ ɜɵɤɥɸɱɢɬɶ ɷɬɨɬɪɟɠɢɦ ɩɨɜɬɨɪɧɵɦ ɧɚɠɚɬɢɟɦ ɤɥɚɜɢɲɢ Ɋ.4.1.3.ɇɠɨɹ ɫɠɡɣɧɩɝ ɫɛɬɲɠɭɛ ɪɠɫɠɟɛɭɩɲɨɶɰ ɯɮɨɥɱɣɤ DCɉɨɫɥɟ ɩɟɪɟɯɨɞɚ ɜ ɪɟɠɢɦ ɪɚɫɱɟɬɚ ɩɟɪɟɞɚɬɨɱɧɵɯ ɮɭɧɤɰɢɣ ɜ ɫɬɪɨɤɟ ɦɟɧɸ ɩɨɹɜɥɹɟɬɫɹ ɧɨɜɨɟɦɟɧɸ DC, ɫɨɞɟɪɠɚɳɟɟ ɩɨɦɢɦɨ ɫɬɚɧɞɚɪɬɧɵɯ ɩɭɧɤɬɨɜ RUN, Limits, Stepping, Exit, State VariablesEditor ɢ ɪɚɫɲɢɪɟɧɧɵɟ ɤɨɦɚɧɞɵ: OPTIMIZE, Watch, Breakpoints, 3D Windows, Reduce Data Points.ɋɨɫɬɚɜ ɷɬɢɯ ɤɨɦɚɧɞ ɩɪɢɛɥɢɡɢɬɟɥɶɧɨ ɨɞɢɧɚɤɨɜ ɞɥɹ ɜɫɟɯ ɜɢɞɨɜ ɚɧɚɥɢɡɚ, ɫɦɵɫɥ ɢɯ ɹɫɟɧ ɢɡ ɧɚɡɜɚɧɢɹ, ɚ ɧɚɡɧɚɱɟɧɢɟ ɢ ɪɟɡɭɥɶɬɚɬ ɜɵɩɨɥɧɟɧɢɹ ɨɩɪɟɞɟɥɹɸɬɫɹ ɫɚɦɨɫɬɨɹɬɟɥɶɧɨ ɩɪɢ ɭɝɥɭɛɥɟɧɧɨɦɢɡɭɱɟɧɢɢ ɩɪɨɝɪɚɦɦɧɨɝɨ ɩɚɤɟɬɚ.96Ɇ.Ⱥ.
Ⱥɦɟɥɢɧɚ4.2.03.03.2006ɫɬɪ. 97 ɢɡ 135ɋɛɬɲɠɭ ɫɠɡɣɧɛ ɪɩ ɪɩɬɭɩɺɨɨɩɧɮ ɭɩɥɮ (Dynamic DC —Alt+4)ɉɨ ɤɨɦɚɧɞɟ Analysis/Dynamic DC ɩɪɨɢɡɜɨɞɢɬɫɹ ɪɚɫɱɟɬ ɪɟɠɢɦɚ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ ɢ ɟɝɨɨɬɨɛɪɚɠɟɧɢɟ ɧɚ ɱɟɪɬɟɠɟ ɫɟɦɵ. ɉɪɢɱɟɦ ɟɫɥɢ ɧɚ ɡɚɤɥɚɞɤɟ Common ɤɨɦɚɧɞɵ Options/Preferencesɜɤɥɸɱɟɧ ɩɚɪɚɦɟɬɪ Show Slider, ɬɨ ɧɚ ɫɯɟɦɟ ɭ ɢɡɨɛɪɚɠɟɧɢɣ ɛɚɬɚɪɟɣ ɢ ɪɟɡɢɫɬɨɪɨɜ ɪɚɡɦɟɳɚɸɬɫɹɞɜɢɠɤɨɜɵɟ ɪɟɝɭɥɹɬɨɪɵ — ɩɪɢ ɢɯ ɩɟɪɟɦɟɳɟɧɢɢ ɞɜɢɠɟɧɢɟɦ ɤɭɪɫɨɪɚ ɢɡɦɟɧɹɸɬɫɹ ɧɨɦɢɧɚɥɶɧɵɟɡɧɚɱɟɧɢɹ ɷɬɢɯ ɤɨɦɩɨɧɟɧɬɨɜ, ɢ ɧɚ ɫɯɟɦɟ ɨɬɨɛɪɚɠɚɸɬɫɹ ɧɨɜɵɟ ɡɧɚɱɟɧɢɹ ɪɟɠɢɦɚ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭɬɨɤɭ, ɤɚɤ ɩɨɤɚɡɚɧɨ ɧɚ ɪɢɫ.
4.2. Ɇɢɧɢɦɚɥɶɧɵɟ ɢ ɦɚɤɫɢɦɚɥɶɧɵɟ ɡɧɚɱɟɧɢɹ ɧɨɦɢɧɚɥɶɧɵɯ ɡɧɚɱɟɧɢɣɨɩɪɟɞɟɥɹɸɬɫɹ ɫ ɩɨɦɨɳɶɸ ɚɬɪɢɛɭɬɨɜ SLIDER_MIN, SLIDER_MAX ɤɚɠɞɨɣ ɛɚɬɚɪɟɢ ɢ ɤɚɠɞɨɝɨ ɪɟɡɢɫɬɨɪɚ, ɫɦ. ɪɢɫ. 4.3.Ɋɢɫ. 4.2. Ɉɬɨɛɪɚɠɟɧɢɟ ɪɟɡɭɥɶɬɚɬɨɜ ɪɚɫɱɟɬɚ ɪɟɠɢɦɚ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭɈɛɴɟɦ ɜɵɜɨɞɢɦɨɣ ɧɚ ɫɯɟɦɭ ɢɧɮɨɪɦɚɰɢɢ ɨɩɪɟɞɟɥɹɟɬɫɹ ɧɚɠɚɬɢɟɦ ɩɢɤɬɨɝɪɚɦɦ:— ɧɨɦɟɪɚ ɭɡɥɨɜ;— ɧɚɩɪɹɠɟɧɢɹ ɚɧɚɥɨɝɨɜɵɯ ɭɡɥɨɜ ɢɥɢ ɥɨɝɢɱɟɫɤɢɟ ɫɨɫɬɨɹɧɢɹ ɰɢɮɪɨɜɵɯ ɭɡɥɨɜ;— ɬɨɤɢ ɜɟɬɜɟɣ;— ɦɨɳɧɨɫɬɢ, ɪɚɫɫɟɢɜɚɟɦɵɟ ɜ ɜɟɬɜɹɯ;— ɫɨɫɬɨɹɧɢɹ p-n ɩɟɪɟɯɨɞɨɜ: LIN — ɥɢɧɟɣɧɵɣ ɪɟɠɢɦ, ON — ɩɟɪɟɯɨɞ ɨɬɤɪɵɬ, OFF—ɩɟɪɟɯɨɞ ɡɚɤɪɵɬ, SAT — ɧɚɯɨɞɢɬɫɹ ɜ ɪɟɠɢɦɟ ɧɚɫɵɳɟɧɢɹ, .97D:\Ɉɩɢɫɚɧɢɟ MC8\MC8_V1_2.DOCɊɢɫ. 4.3. Ɂɚɞɚɧɢɟ ɞɢɚɩɚɡɨɧɚ ɢɡɦɟɧɟɧɢɣ ɧɨɦɢɧɚɥɶɧɵɯ ɡɧɚɱɟɧɢɣ ɞɥɹ ɪɟɠɢɦɚ Dynamic DC.ɉɪɢ ɜɵɩɨɥɧɟɧɢɢ ɤɨɦɚɧɞɵ Analysis>Dynamic DC ɩɨ ɭɦɨɥɱɚɧɢɸ ɧɚɠɚɬɚ ɩɢɤɬɨɝɪɚɦɦɚɨɫɬɚɥɶɧɵɟ ɩɨɥɶɡɨɜɚɬɟɥɢ ɜɤɥɸɱɚɸɬ ɩɨ ɦɟɪɟ ɧɚɞɨɛɧɨɫɬɢ.Ɍɚɤ ɜ ɩɪɢɦɟɪɟ (ɫɦ.
ɪɢɫ. 4.2) ɞɨɩɨɥɧɢɬɟɥɶɧɨ ɧɚɠɚɬɚ ɤɧɨɩɤɚɞɥɹ ɨɬɨɛɪɚɠɟɧɢɹ ɫɨɫɬɨɹɧɢɹ ɬɪɚɧɡɢɫɬɨɪɚ.Ⱦɚɧɧɵɣ ɪɟɠɢɦ (Dynamic DC) ɦɨɠɟɬ ɛɵɬɶ ɨɱɟɧɶ ɩɨɥɟɡɟɧ, ɧɚɩɪɢɦɟɪ, ɞɥɹ ɧɚɫɬɪɨɣɤɢ ɪɟɠɢɦɚɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ ɭɫɢɥɢɬɟɥɶɧɨɝɨ ɤɚɫɤɚɞɚ (ɦɧɨɝɨɤɚɫɤɚɞɧɵɯ ɭɫɢɥɢɬɟɥɟɣ), ɬ.ɟ. ɞɥɹ ɩɪɚɜɢɥɶɧɨɣɭɫɬɚɧɨɜɤɢ ɪɚɛɨɱɟɣ ɬɨɱɤɢ. Ɍɪɚɧɡɢɫɬɨɪ ɞɨɥɠɟɧ ɩɪɢ ɷɬɨɦ ɧɚɯɨɞɢɬɶɫɹ ɜ ɥɢɧɟɣɧɨɦ ɪɟɠɢɦɟ, ɚ ɧɚɩɪɹɠɟɧɢɟ ɧɚ ɜɵɯɨɞɟ ɞɨɥɠɧɨ ɛɵɬɶ ɜ ɞɢɚɩɚɡɨɧɟ 1/3…2/3 ɨɬ ɧɚɩɪɹɠɟɧɢɹ ɩɢɬɚɧɢɹ. ɉɪɢɦɟɪɵ ɢɫɩɨɥɶɡɨɜɚɧɢɹ ɪɟɠɢɦɚ DYNAMIC DCɜ ɫɯɟɦɧɵɯ ɮɚɣɥɚɯ US_BJT_ɉɘ_ɨɛɬɭɫɩɤɥɛ,US_NMOS_ɉɃ_ɨɛɬɭɫɩɤɥɛ ɢɡ ɤɚɬɚɥɨɝɚ ANALYSIS\DYNAMIC DC.ȼ 1-ɨɦ ɩɪɢɦɟɪɟ ɤɚɫɤɚɞ ɜ ɢɫɯɨɞɧɨɦ ɫɨɫɬɨɹɧɢɢ ɧɟ ɨɛɥɚɞɚɟɬ ɧɟɨɛɯɨɞɢɦɵɦɢ ɭɫɢɥɢɬɟɥɶɧɵɦɢɫɜɨɣɫɬɜɚɦɢ, ɜ ɱɟɦ ɦɨɠɧɨ ɭɛɟɞɢɬɶɫɹ, ɡɚɩɭɫɬɢɜ ɪɟɠɢɦ ɚɧɚɥɢɡɚ TRANSIENT — ɤɚɫɤɚɞ ɛɭɞɟɬ ɢɫɤɚɠɚɬɶ ɫɢɧɭɫɨɢɞɚɥɶɧɵɣ ɫɢɝɧɚɥ, ɨɝɪɚɧɢɱɢɜɚɹ ɟɝɨ ɫ ɨɞɧɨɣ ɫɬɨɪɨɧɵ.
ɇɚɫɬɪɨɣɤɚ ɩɪɨɢɡɜɨɞɢɬɫɹ ɢɡɦɟɧɟɧɢɟɦ ɜɟɥɢɱɢɧɵ ɪɟɡɢɫɬɨɪɚ R2 ɞɜɢɠɤɨɦ ɜ ɪɟɠɢɦɟ DYNAMIC DC ɩɪɢ ɜɤɥɸɱɟɧɧɨɣ ɞɨɩɨɥɧɢɬɟɥɶɧɨ ɤɧɨɩɤɟ, ɞɨ ɬɟɯ ɩɨɪ ɩɨɤɚ ɬɪɚɧɡɢɫɬɨɪ ɧɟ ɨɤɚɠɟɬɫɹ ɜ ɭɫɢɥɢɬɟɥɶɧɨɦ ɪɟɠɢɦɟ (LIN, HOT)ɢ ɧɚɩɪɹɠɟɧɢɟ ɧɚ ɤɨɥɥɟɤɬɨɪɟ ɧɟ ɛɭɞɟɬ ɩɪɢɛɥɢɡɢɬɟɥɶɧɨ ɪɚɜɧɨ ɩɨɥɨɜɢɧɟ ɧɚɩɪɹɠɟɧɢɹ ɩɢɬɚɧɢɹ.ɉɨɫɥɟ ɷɬɨɝɨ ɦɨɠɧɨ ɫɧɨɜɚ ɡɚɩɭɫɬɢɬɶ TRANSIENT ɚɧɚɥɢɡ, ɨɬɜɟɬɢɜ «NO» ɧɚ ɜɨɩɪɨɫ ɨ ɜɨɫɫɬɚɧɨɜɥɟɧɢɢ ɢɫɯɨɞɧɨɝɨ ɫɨɫɬɨɹɧɢɹ ɤɚɫɤɚɞɚ ɩɨ ɧɨɦɢɧɚɥɚɦ ɢ ɭɛɟɞɢɬɶɫɹ ɜ ɧɚɞɥɟɠɚɳɟɣ ɪɚɛɨɬɟ ɭɫɢɥɢɬɟɥɶɧɨɝɨ ɤɚɫɤɚɞɚ.ȼɨ 2-ɦ ɩɪɢɦɟɪɟ ɜɫɟ ɞɟɥɚɟɬɫɹ ɚɧɚɥɨɝɢɱɧɨ, ɬɨɥɶɤɨ ɧɚɫɬɪɨɣɤɚ ɤɚɫɤɚɞɚ ɜɵɩɨɥɧɹɟɬɫɹ ɢɡɦɟɧɟɧɢɟɦ ɧɚɩɪɹɠɟɧɢɹ ɢɫɬɨɱɧɢɤɚ ɜ ɰɟɩɢ ɡɚɬɜɨɪɚ V1.Ɉɬɦɟɬɢɦ, ɱɬɨ ɩɪɢ ɢɫɩɨɥɶɡɨɜɚɧɢɢ ɩɟɪɟɱɢɫɥɟɧɧɵɯ ɜɵɲɟ ɤɧɨɩɨɤ ɩɪɢ ɚɧɚɥɢɡɟ ɩɟɪɟɯɨɞɧɵɯɩɪɨɰɟɫɫɨɜ ɧɚ ɫɯɟɦɟ ɨɬɨɛɪɚɠɚɸɬɫɹ ɧɟ ɡɧɚɱɟɧɢɹ ɪɟɠɢɦɚ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ, ɚ ɡɧɚɱɟɧɢɹ ɩɟɪɟɯɨɞɧɵɯ ɩɪɨɰɟɫɫɨɜ ɜ ɩɨɫɥɟɞɧɢɣ ɦɨɦɟɧɬ ɜɪɟɦɟɧɢ, ɟɫɥɢ ɧɟ ɜɵɛɪɚɧɚ ɨɩɰɢɹ Operation Point Only.ɉɨɫɥɟ ɡɚɜɟɪɲɟɧɢɹ ɪɚɫɱɟɬɨɜ ɩɨ ɤɨɦɚɧɞɚɦ Analysis/AC, DC ɧɚ ɫɯɟɦɟ ɨɬɨɛɪɚɠɚɸɬɫɹ ɡɧɚɱɟɧɢɹɪɟɠɢɦɚ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ, ɪɚɫɫɱɢɬɚɧɧɨɝɨ ɩɨɫɥɟɞɧɢɦ.98Ɇ.Ⱥ.
Ⱥɦɟɥɢɧɚ4.3.03.03.2006ɫɬɪ. 99 ɢɡ 135ɋɛɬɲɠɭ ɧɛɦɩɬɣɞɨɛɦɷɨɶɰ ɪɠɫɠɟɛɭɩɲɨɶɰ ɯɮɨɥɱɣɤ (Transfer Function— Alt+5)ɉɨ ɤɨɦɚɧɞɟ Analysis/Transfer Function ɜɵɩɨɥɧɹɟɬɫɹ ɪɚɫɱɟɬ ɦɚɥɨɫɢɝɧɚɥɶɧɵɯ ɩɟɪɟɞɚɬɨɱɧɵɯ ɮɭɧɤɰɢɣ ɜ ɪɟɠɢɦɟ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ, ɤɨɬɨɪɵɟ ɪɚɫɫɱɢɬɵɜɚɸɬɫɹ ɩɨɫɥɟ ɥɢɧɟɚɪɢɡɚɰɢɢɫɯɟɦɵ ɜ ɨɤɪɟɫɬɧɨɫɬɢ ɪɚɛɨɱɟɣ ɬɨɱɤɢ. Ɂɚɞɚɧɢɟ ɧɚ ɪɚɫɱɟɬ ɫɨɫɬɚɜɥɹɟɬɫɹ ɜ ɞɢɚɥɨɝɨɜɨɦ ɨɤɧɟ, ɩɨɤɚɡɚɧɧɨɦ ɧɚ ɪɢɫ. 4.4. ɇɚ ɫɬɪɨɤɟ Output Expression ɭɤɚɡɵɜɚɟɬɫɹ ɜɵɪɚɠɟɧɢɟ ɞɥɹ ɜɵɯɨɞɧɨɣ ɩɟɪɟɦɟɧɧɨɣ, ɧɚ ɫɬɪɨɤɟ Input Source Name — ɢɦɹ ɜɯɨɞɧɨɣ ɩɟɪɟɦɟɧɧɨɣ. ȼ ɤɚɱɟɫɬɜɟ ɜɵɯɨɞɧɨɣ ɩɟɪɟɦɟɧɧɨɣ ɦɨɠɟɬ ɢɫɩɨɥɶɡɨɜɚɬɶɫɹ ɥɸɛɚɹ ɩɟɪɟɦɟɧɧɚɹ ɢɥɢ ɮɭɧɤɰɢɹ, ɢɦɟɸɳɢɟ ɫɦɵɫɥ ɩɪɢ ɚɧɚɥɢɡɟɪɟɠɢɦɚ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ, ɧɚɩɪɢɦɟɪ, ɧɚɩɪɹɠɟɧɢɟ V(A,B) ɢɥɢ ɬɨɤ I(R1).
ȼ ɤɚɱɟɫɬɜɟ ɜɯɨɞɧɨɣɩɟɪɟɦɟɧɧɨɣ ɦɨɠɟɬ ɛɵɬɶ ɢɫɩɨɥɶɡɨɜɚɧɨ ɧɚɩɪɹɠɟɧɢɟ ɢɥɢ ɬɨɤ ɢɫɬɨɱɧɢɤɚ ɧɚɩɪɹɠɟɧɢɹ ɢɥɢ ɬɨɤɚ, ɧɚɩɪɢɦɟɪ VIN. Ɋɚɫɱɟɬ ɩɪɨɢɡɜɨɞɢɬɫɹ ɩɨɫɥɟ ɧɚɠɚɬɢɹ ɧɚ ɩɚɧɟɥɶ Calculate. Ɋɟɡɭɥɶɬɚɬɵ ɪɚɫɱɟɬɚ ɩɟɪɟɞɚɬɨɱɧɨɣ ɮɭɧɤɰɢɢ, ɧɚɩɪɢɦɟɪ dV(A,B)/dVIN, ɭɤɚɡɵɜɚɟɬɫɹ ɧɚ ɫɬɪɨɤɟ Transfer Function. Ʉɪɨɦɟɬɨɝɨ, ɧɚ ɫɬɪɨɤɚɯ Input(Output) Impedance ɭɤɚɡɵɜɚɸɬɫɹ ɡɧɚɱɟɧɢɹ ɜɯɨɞɧɨɝɨ (ɜɵɯɨɞɧɨɝɨ) ɫɨɩɪɨɬɢɜɥɟɧɢɣ. ɉɪɢ ɜɵɛɨɪɟ ɨɩɰɢɢ Place Text ɪɟɡɭɥɶɬɚɬɵ ɪɚɫɱɟɬɚ ɩɨɦɟɳɚɸɬɫɹ ɜ ɜɢɞɟ ɬɟɤɫɬɚ ɧɟɩɨɫɪɟɞɫɬɜɟɧɧɨ ɧɚ ɫɯɟɦɭ (ɪɢɫ. 4.4).Ɋɢɫ. 4.4.
Ⱦɢɚɥɨɝɨɜɨɟ ɨɤɧɨ Transfer Function (ɚ) ɢ ɬɟɤɫɬɨɜɚɹ ɢɧɮɨɪɦɚɰɢɹ ɨ ɪɟɡɭɥɶɬɚɬɚɯ ɪɚɫɱɟɬɨɜ (ɛ)99D:\Ɉɩɢɫɚɧɢɟ MC8\MC8_V1_2.DOC4.4.ɋɛɬɲɠɭ ɲɮɝɬɭɝɣɭɠɦɷɨɩɬɭɠɤ ɪɩ ɪɩɬɭɩɺɨɨɩɧɮ ɭɩɥɮ (Sensitivity —Alt+6)ɑɭɜɫɬɜɢɬɟɥɶɧɨɫɬɶ ɪɟɠɢɦɚ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ ɪɚɫɫɱɢɬɵɜɚɟɬɫɹ ɩɨ ɤɨɦɚɧɞɟAnalysis/Sensitivity. ɑɭɜɫɬɜɢɬɟɥɶɧɨɫɬɶ ɪɚɫɫɱɢɬɵɜɚɟɬɫɹ ɩɨɫɥɟ ɥɢɧɟɚɪɢɡɚɰɢɢ ɫɯɟɦɵ ɜ ɨɤɪɟɫɬɧɨɫɬɢ ɪɚɛɨɱɟɣ ɬɨɱɤɢ. ɉɪɢ ɷɬɨɦ ɪɚɫɫɱɢɬɵɜɚɟɬɫɹ ɱɭɜɫɬɜɢɬɟɥɶɧɨɫɬɶ ɨɞɧɨɣ ɢɥɢ ɧɟɫɤɨɥɶɤɢɯ ɜɵɯɨɞɧɵɯ ɩɟɪɟɦɟɧɧɵɯ ɤ ɢɡɦɟɧɟɧɢɸ ɜɵɛɪɚɧɧɵɯ ɩɚɪɚɦɟɬɪɨɜ ɫɯɟɦɵ.
Ⱦɢɚɥɨɝɨɜɨɟ ɨɤɧɨ ɤɨɦɚɧɞɵ ɩɨɤɚɡɚɧɨ ɧɚ ɪɢɫ. 4.5.ȼ ɝɪɚɮɟ Output ɭɤɚɡɵɜɚɟɬɫɹ ɨɞɧɨ ɢɥɢ ɧɟɫɤɨɥɶɤɨ ɜɵɪɚɠɟɧɢɣ ɞɥɹ ɜɵɯɨɞɧɵɯ ɩɟɪɟɦɟɧɧɵɯ,ɤɚɠɞɨɟ ɜɵɪɚɠɟɧɢɟ ɧɚ ɨɬɞɟɥɶɧɨɣ ɫɬɪɨɤɟ, ɧɚɩɪɢɦɟɪ Iɫ(Q1). ȼ ɨɤɧɟ Input Variable ɜɵɛɢɪɚɟɬɫɹɨɞɢɧ ɜɯɨɞɧɨɣ ɩɚɪɚɦɟɬɪ, ɧɚɩɪɢɦɟɪ Ib (ɧɟɫɤɨɥɶɤɨ ɩɚɪɚɦɟɬɪɨɜ ɡɞɟɫɶ ɜɵɛɢɪɚɬɶ ɧɟ ɪɚɡɪɟɲɚɟɬɫɹ).ɞI (Q1) ɞI B (Q1)Ɋɟɡɭɥɶɬɚɬɵ ɪɚɫɱɟɬɚ ɱɭɜɫɬɜɢɬɟɥɶɧɨɫɬɢ, ɜ ɩɪɢɜɟɞɟɧɧɨɦ ɜɵɲɟ ɩɪɢɦɟɪɟ ɷɬɨ C,,ɞI BɞI BɞI E (Q1), ɩɨɫɥɟ ɧɚɠɚɬɢɹ ɧɚ ɩɚɧɟɥɶ Calculate ɩɨɦɟɳɚɸɬɫɹ ɜ ɝɪɚɮɭ Sensitivity. ȼ ɝɪɚɮɟɞI BSensitivity %/% ɩɨɦɟɳɚɸɬɫɹ ɡɧɚɱɟɧɢɟ ɩɪɢɪɚɳɟɧɢɹ ɜɵɯɨɞɧɨɣ ɩɟɪɟɦɟɧɧɨɣ ɜ ɩɪɨɰɟɧɬɚɯ, ɪɚɡɞɟɥɟɧɧɨɟ ɧɚ ɢɡɦɟɧɟɧɢɟ ɜɯɨɞɧɨɝɨ ɩɚɪɚɦɟɬɪɚ ɜ ɩɪɨɰɟɧɬɚɯ. Ɍɢɩ ɜɯɨɞɧɵɯ ɩɟɪɟɦɟɧɧɵɯ ɜɵɛɢɪɚɟɬɫɹ ɫɩɨɦɨɳɶɸ ɤɧɨɩɨɤ Component, Model ɢ Symbolic. ɉɪɢ ɜɵɛɨɪɟ ɩɟɪɟɦɟɧɧɨɣ ɬɢɩɚ Model ɦɨɠɧɨ ɜ ɤɚɱɟɫɬɜɟ ɜɯɨɞɧɵɯ ɜɵɛɪɚɬɶ ɧɟɫɤɨɥɶɤɨ ɩɚɪɚɦɟɬɪɨɜ ɦɚɬɟɦɚɬɢɱɟɫɤɨɣ ɦɨɞɟɥɢ ɭɤɚɡɚɧɧɨɝɨ ɤɨɦɩɨɧɟɧɬɚ(ɜɫɟ ɩɚɪɚɦɟɬɪɵ ɜɵɛɢɪɚɸɬɫɹ ɧɚɠɚɬɢɟɦ ɧɚ ɤɧɨɩɤɭ Ⱥll On, ɩɪɢ ɷɬɨɦ ɪɟɡɭɥɶɬɚɬɵ ɪɚɫɱɟɬɚ ɱɭɜɫɬɜɢɬɟɥɶɧɨɫɬɟɣ ɡɚɧɨɫɹɬɫɹ ɜ ɬɟɤɫɬɨɜɵɣ ɮɚɣɥ ɫ ɪɚɫɲɢɪɟɧɢɟɦ *.sen ɜ ɜɢɞɟ ɬɚɛɥɢɰ.Ɋɢɫ.
4.5. Ⱦɢɚɥɨɝɨɜɨɟ ɨɤɧɨ Sensitivity100Ɇ.Ⱥ. Ⱥɦɟɥɢɧɚ03.03.2006ɫɬɪ. 101 ɢɡ 135Ɋɟɡɸɦɟ: ȼɫɟ ɩɟɪɟɱɢɫɥɟɧɧɵɟ ɜɵɲɟ ɜ ɩɨɞɪɚɡɞɟɥɚɯ 4.1…4.4 ɪɟɠɢɦɵ ɚɧɚɥɢɡɚ ɹɜɥɹɸɬɫɹɪɚɡɧɨɜɢɞɧɨɫɬɹɦɢ ɚɧɚɥɢɡɚ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ ɢ ɜɵɩɨɥɧɹɸɬɫɹ ɩɪɢ ɢɫɤɥɸɱɟɧɢɢ ɢɡ ɫɯɟɦɵ ɤɨɧɞɟɧɫɚɬɨɪɨɜ ɢ ɡɚɤɨɪɚɱɢɜɚɧɢɢ ɤɚɬɭɲɟɤ ɢɧɞɭɤɬɢɜɧɨɫɬɢ.4.5.Ȼɨɛɦɣɢ ɪɩ ɪɠɫɠɧɠɨɨɩɧɮ ɭɩɥɮ ɨɛ ɧɛɦɩɧ ɬɣɞɨɛɦɠ (AC — Alt+2)ȼ ɪɟɠɢɦɟ Ⱥɋ ɫɧɚɱɚɥɚ ɪɚɫɫɱɢɬɵɜɚɟɬɫɹ ɪɟɠɢɦ ɫɯɟɦɵ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ, ɡɚɬɟɦ ɥɢɧɟɚɪɢɡɭɸɬɫɹ ɜɫɟ ɧɟɥɢɧɟɣɧɵɟ ɤɨɦɩɨɧɟɧɬɵ (ɩɚɫɫɢɜɧɵɟ ɤɨɦɩɨɧɟɧɬɵ ɫ ɧɟɥɢɧɟɣɧɵɦɢ ɩɚɪɚɦɟɬɪɚɦɢ,ɞɢɨɞɵ, ɬɪɚɧɡɢɫɬɨɪɵ, ɧɟɥɢɧɟɣɧɵɟ ɭɩɪɚɜɥɹɟɦɵɟ ɢɫɬɨɱɧɢɤɢ) ɢ ɜɵɩɨɥɧɹɟɬɫɹ ɪɚɫɱɟɬ ɤɨɦɩɥɟɤɫɧɵɯɚɦɩɥɢɬɭɞ ɭɡɥɨɜɵɯ ɩɨɬɟɧɰɢɚɥɨɜ ɢ ɬɨɤɨɜ ɜɟɬɜɟɣ.
ɉɪɢ ɥɢɧɟɚɪɢɡɚɰɢɢ ɰɢɮɪɨɜɵɟ ɤɨɦɩɨɧɟɧɬɵ ɡɚɦɟɧɹɸɬɫɹ ɢɯ ɜɯɨɞɧɵɦɢ ɢ ɜɵɯɨɞɧɵɦɢ ɤɨɦɩɥɟɤɫɧɵɦɢ ɫɨɩɪɨɬɢɜɥɟɧɢɹɦɢ, ɩɟɪɟɞɚɱɚ ɫɢɝɧɚɥɨɜ ɱɟɪɟɡ ɧɢɯ ɧɟ ɪɚɫɫɦɚɬɪɢɜɚɟɬɫɹ.Ʉɨ ɜɯɨɞɭ ɫɯɟɦɵ ɞɨɥɠɟɧ ɛɵɬɶ ɩɨɞɤɥɸɱɟɧ ɢɫɬɨɱɧɢɤ ɫɢɧɭɫɨɢɞɚɥɶɧɨɝɨ SIN ɢɥɢ ɢɦɩɭɥɶɫɧɨɝɨɫɢɝɧɚɥɚ PULSE ɢɥɢ ɫɢɝɧɚɥɚ USER, ɮɨɪɦɚ ɤɨɬɨɪɨɝɨ ɡɚɞɚɟɬɫɹ ɩɨɥɶɡɨɜɚɬɟɥɟɦ. ɗɬɨɬ ɢɫɬɨɱɧɢɤ ɜɞɚɧɧɨɦ ɪɟɠɢɦɟ (AC) ɡɚɞɚɟɬ ɦɟɫɬɨ ɩɨɞɤɥɸɱɟɧɢɹ ɝɚɪɦɨɧɢɱɟɫɤɨɝɨ ɜɨɡɦɭɳɟɧɢɹ ɫ ɩɟɪɟɦɟɧɧɨɣ ɱɚɫɬɨɬɨɣ.ɉɪɢ ɪɚɫɱɟɬɟ ɱɚɫɬɨɬɧɵɯ ɯɚɪɚɤɬɟɪɢɫɬɢɤ ɤɨɦɩɥɟɤɫɧɚɹ ɚɦɩɥɢɬɭɞɚ ɷɬɨɝɨ ɫɢɝɧɚɥɚ ɚɜɬɨɦɚɬɢɱɟɫɤɢ ɩɨɥɚɝɚɟɬɫɹ ɪɚɜɧɨɣ 1 ȼ, ɧɚɱɚɥɶɧɚɹ ɮɚɡɚ ɧɭɥɟɜɚɹ (ɧɟɡɚɜɢɫɢɦɨ ɨɬ ɬɨɝɨ, ɤɚɤ ɡɚɞɚɧɵ ɡɧɚɱɟɧɢɹɩɚɪɚɦɟɬɪɨɜ ɦɨɞɟɥɢ ɫɢɝɧɚɥɚ), ɚ ɱɚɫɬɨɬɚ ɦɟɧɹɟɬɫɹ ɜ ɩɪɟɞɟɥɚɯ, ɡɚɞɚɜɚɟɦɵɯ ɜ ɦɟɧɸ AC AnalysisLimits. ȼɨɡɦɨɠɧɨ ɬɚɤɠɟ ɩɨɞɤɥɸɱɟɧɢɟ ɧɟɡɚɜɢɫɢɦɵɯ ɢɫɬɨɱɧɢɤɨɜ ɧɚɩɪɹɠɟɧɢɹ V ɢɥɢ ɬɨɤɚ I ɜ ɮɨɪɦɚɬɟ SPICE, ɞɥɹ ɤɨɬɨɪɵɯ ɡɚɞɚɸɬɫɹ ɡɧɚɱɟɧɢɹ ɚɦɩɥɢɬɭɞɵ ɢ ɮɚɡɵ.ȿɫɥɢ ɢɦɟɟɬɫɹ ɨɞɢɧ ɢɫɬɨɱɧɢɤ ɫɢɝɧɚɥɚ, ɬɨ ɜɵɯɨɞɧɵɟ ɧɚɩɪɹɠɟɧɢɹ ɛɭɞɭɬ ɫɨɜɩɚɞɚɬɶ ɫ ɱɚɫɬɨɬɧɵɦɢ ɯɚɪɚɤɬɟɪɢɫɬɢɤɚɦɢ ɭɫɬɪɨɣɫɬɜɚ.
ȿɫɥɢ ɠɟ ɢɫɬɨɱɧɢɤɨɜ ɫɢɝɧɚɥɚ ɧɟɫɤɨɥɶɤɨ, ɬɨ ɨɬɤɥɢɤɢ ɨɬ ɤɚɠɞɨɝɨ ɫɢɝɧɚɥɚ ɛɭɞɭɬ ɫɤɥɚɞɵɜɚɬɶɫɹ ɤɚɤ ɤɨɦɩɥɟɤɫɧɵɟ ɜɟɥɢɱɢɧɵ (ɫɦ. ɪɢɫ. 4.6) ɢ ɩɪɢɦɟɪ AC_FUNCɢɡ ɤɚɬɚɥɨɝɚ Analysysis\AC.Ɋɢɫ. 4.6. ɉɪɢɦɟɪ ɚɧɚɥɢɡɚ ɩɨ ɩɟɪɟɦɟɧɧɨɦɭ ɬɨɤɭ ɫ ɧɟɫɤɨɥɶɤɢɦɢ ɢɫɬɨɱɧɢɤɚɦɢ ɫɢɝɧɚɥɚ101D:\Ɉɩɢɫɚɧɢɟ MC8\MC8_V1_2.DOCɉɨɫɥɟ ɩɟɪɟɯɨɞɚ ɜ ɪɟɠɢɦ ɚɧɚɥɢɡɚ ɱɚɫɬɨɬɧɵɯ ɯɚɪɚɤɬɟɪɢɫɬɢɤ ɩɪɨɝɪɚɦɦɚ MC8 ɩɪɨɜɟɪɹɟɬɩɪɚɜɢɥɶɧɨɫɬɶ ɫɨɫɬɚɜɥɟɧɢɹ ɫɯɟɦɵ. ɉɪɢ ɨɬɫɭɬɫɬɜɢɢ ɨɲɢɛɨɤ ɜ ɫɯɟɦɟ ɩɪɨɝɪɚɦɦɚ ɫɨɫɬɚɜɥɹɟɬ ɟɟɬɨɩɨɥɨɝɢɱɟɫɤɨɟ ɨɩɢɫɚɧɢɟ, ɜɵɩɨɥɧɹɟɬ ɩɨɞɝɨɬɨɜɤɭ ɤ ɱɢɫɥɟɧɧɨɦɭ ɪɟɲɟɧɢɸ ɫɢɫɬɟɦɵ ɧɟɥɢɧɟɣɧɵɯɚɥɝɟɛɪɚɢɱɟɫɤɢɯ ɭɪɚɜɧɟɧɢɣ ɢ ɨɬɤɪɵɜɚɟɬ ɨɤɧɨ ɡɚɞɚɧɢɹ ɩɚɪɚɦɟɬɪɨɜ ɦɨɞɟɥɢɪɨɜɚɧɢɹ AC AnalysisLimits (ɋɦ. ɪɢɫ.
4.7.). Ɉɫɧɨɜɧɚɹ ɩɨɫɥɟɞɨɜɚɬɟɥɶɧɨɫɬɶ ɜɵɱɢɫɥɟɧɢɣ, ɜɵɩɨɥɧɹɟɦɚɹ ɩɪɢ ɩɪɨɜɟɞɟɧɢɢ ɦɚɥɨɫɢɝɧɚɥɶɧɨɝɨ ɱɚɫɬɨɬɧɨɝɨ ɚɧɚɥɢɡɚ AC ɩɨ ɤɨɦɚɧɞɟ RUN ɫɥɟɞɭɸɳɚɹ:1. Ɋɚɫɫɱɢɬɵɜɚɟɬɫɹ ɪɟɠɢɦ ɪɚɛɨɬɵ ɫɯɟɦɵ ɩɨ ɩɨɫɬɨɹɧɧɨɦɭ ɬɨɤɭ, ɢɫɯɨɞɹ ɢɡ ɜɟɥɢɱɢɧ ɩɨɫɬɨɹɧɧɵɯ ɢɫɬɨɱɧɢɤɨɜ ɧɚɩɪɹɠɟɧɢɹ ɢ ɬɨɤɚ ɜ ɫɯɟɦɟ (Baterry, Isource) ɚ ɬɚɤɠɟ ɡɧɚɱɟɧɢɣ ɩɨɫɬɨɹɧɧɵɯɫɨɫɬɚɜɥɹɸɳɢɯ ɢɫɬɨɱɧɢɤɨɜ ɫɢɝɧɚɥɚ ɫɯɟɦɵ (ɚɬɪɢɛɭɬ DC ɞɥɹ SINE SOURCE ɢ ɢɫɬɨɱɧɢɤɨɜ V ɢ I,VZERO ɞɥɹ PULSE SOURɋE).2.
