Equipos electrónicos de consumo
Filtres actius
Mòdul 5: Filtres actius
Pràctica 11: Filtre passa baixos de primer ordre
Material:
R1 = 100k
R2 = 1M
C = 2,2nF
1 A.O. 741
Taula de valors:
| F (Hz) | Vo [mV] | Gteòric | Gt [dB] | Vo [mV] | G=Vo/Vi | G [dB] |
| 1 | 10 | 20 | 5000 | 10 | 20 | |
| 5 | 10 | 20 | 5000 | 10 | 20 | |
| 10 | 9.90 | 19.91 | 5000 | 10 | 20 | |
| 50 | 8.23 | 18.29 | 4600 | 9.2 | 19.275 | |
| 100 | 5.86 | 15.36 | 2960 | 5.92 | 15.446 | |
| 500 | 1.43 | 3.11 | 900 | 1.8 | 5.5 | |
| 1000 | 0.72 | -2.812 | 800 | 1.6 | -1.35 | |
| 5000 | 0.14 | -16.8 | 64 | 0.128 | -17.855 | |
| 10000 | 0.07 | -2281 | 48 | 0.096 | -20.35 | |
| 12000 | 0.06 | -24.39 | 16 | 0.032 | -29.89 |
Fórmules empreades:
G = R2 / ( R1 " 1 + ( w · R2 · C )2 )
F << Ft ! G = R2 / R1 _____________
F = Ft = G = R2 / (R1 / 1 " 1 + (w · R2 · C)2 )
F >> Ft ! G = 1 / ( w · R1 · C )
Mòdul 5: Filtres actius
Pràctica 11: Filtre passa altes de primer ordre
Material:
R1 = 1.59k
R2 = 150k
C = 2,2nF
1 A.O. 741
Taula de valors:
| F (Hz) | Vo [mV] | Gteòric | Gt [dB] | Vo [mV] | G=Vo/Vi | G [dB] |
| 1 | 9.4·10-3 | -40.51 | ||||
| 5 | 0.047 | -26.535 | 0.045 | 0.08 | -26.1 | |
| 10 | 0.094 | -20.514 | 0.065 | 0.12 | -19.6 | |
| 50 | 0.471 | -6.535 | 0.3 | 0.62 | -6.5 | |
| 100 | 0.94 | -0.514 | 0.475 | 0.93 | -0.55 | |
| 500 | 4.7 | 13.44 | 2.15 | 4.35 | 12.9 | |
| 1000 | 7.07 | 16.98 | 3.75 | 7.5 | 17.3 | |
| 5000 | 9.8 | 19.1 | 5 | 10 | 20 | |
| 10000 | 10 | 20 | 5 | 10 | 20 | |
| 12000 | 10 | 20 | 5 | 10 | 20 |
Fórmules empreades:
______________
G = R2 / ( R1 " 1 + ( w · R2 · C )2 )
F << Ft ! G = R2 / R1 __
F = Ft = G = (R2 / R1) / " 2
F >> Ft ! G = 1 / ( w · R1 · C )
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| Enviado por: | Ship |
| Idioma: | catalán |
| País: | España |
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