UKŁADY ELEKTRONICZNE - LABORATORIUM
10.12.1996
GRUPA 10 : Adam Sennik , Krzysztof Rymarowicz
ĆWICZENIE NR 19 : FILTRY AKTYWNE
1 . Filtr aktywny z mostkiem Wiena .
a).Charakterystyki częstotliwościowe układu dla różnych wartości wzmocnienia napięciowego , Uwe = const. .
Uwe = 1V , R1 = 51k
freq |
10Hz |
102Hz |
734Hz |
781Hz |
815Hz |
868Hz |
Uwy |
0,111V |
0,142V |
0,637V |
0,946V |
1,611V |
3,074V |
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freq |
884Hz |
1064Hz |
1507Hz |
2005Hz |
2937Hz |
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Uwy |
2,53V |
0,506V |
0,163V |
0,093V |
0,053V |
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Uwe = 1V , R2 = 56k
freq |
10Hz |
29Hz |
51Hz |
105Hz |
150Hz |
526Hz |
Uwy |
0,1V |
0,12V |
0,13V |
0,129V |
0,14V |
0,234V |
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freq |
820Hz |
883Hz |
933Hz |
996Hz |
1047Hz |
1196Hz |
Uwy |
0,59V |
0,626V |
0,558V |
0,451V |
0,375V |
0,236V |
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freq |
1598Hz |
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Uwy |
0,11V |
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Uwe = 1V , R3 = 82k
freq |
102Hz |
197Hz |
413Hz |
787Hz |
833Hz |
922Hz |
Uwy |
0,112V |
0,117V |
0,139V |
0,191V |
0,19V |
0,18V |
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freq |
1034Hz |
1235Hz |
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Uwy |
0,159V |
0,12V |
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Uwe =1V , warunki wzbudzania ( załączony potencjometr )
freq |
518Hz |
644Hz |
736Hz |
819Hz |
837Hz |
888Hz |
Uwy |
0,264V |
0,397V |
0,656V |
2,034V |
6,305V |
2,756V |
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freq |
956Hz |
1081Hz |
1429Hz |
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Uwy |
1,085V |
0,443V |
0,163V |
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b). Pomiar zależności Uwy = f ( Uwe ) .
Freq = 500Hz
Uwe |
0,27V |
0,51V |
1,01V |
1,59V |
2,10V |
2,98V |
Uwy |
0,065V |
0,124V |
0,239V |
0,387V |
0,511V |
0,712V |
Uwe |
4,05V |
5,03V |
6,05V |
7,05V |
8,14V |
9,05V |
Uwy |
0,985V |
1,242V |
1,50V |
1,756V |
2,03V |
2,276V |
Uwe |
10,15V |
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Uwy |
2,554V |
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Freq = 1kHz
Uwe |
1,1V |
2,02V |
3,03V |
4,01V |
5,07V |
6,,06V |
Uwy |
0,769V |
1,359V |
1,967V |
2,499V |
3,043V |
3,516V |
Uwe |
7,0V |
8,05V |
9,61V |
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Uwy |
3,964V |
4,46V |
5,159V |
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Freq = 1,5kHz
Uwe |
1,0V |
2,02V |
3,08V |
4,03V |
5,03V |
6,15V |
Uwy |
0,153V |
0,326V |
0,486V |
0,616V |
0,773V |
0,996V |
Uwe |
7,10V |
8,08V |
9,07V |
10,4V |
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Uwy |
1,078V |
1,236V |
1,37V |
1,576V |
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Filtr aktywny z mostkiem typu TT .
a).Określenie położenia punktu pracy tranzystorów .
Ua = 0,613 V Ub = 1,218 V Uc = 11,473 V Ud = 1,263 V
b). Pomiar charakterystyki Ku = f ( Freq )
Uwe = 0,1V
freq [Hz] |
20 |
52 |
105 |
194 |
296 |
404 |
Ku [dB] |
9,85 |
9,71 |
9,62 |
9,51 |
9,24 |
9,18 |
freq [Hz] |
509 |
606 |
708 |
805 |
928 |
990 |
Ku [dB] |
9,15 |
9,09 |
9,03 |
8,94 |
7,23 |
7,49 |
freq [Hz] |
1021 |
1088 |
1172 |
1281 |
1917 |
5008 |
Ku [dB] |
8,91 |
7,49 |
7,30 |
7,27 |
8,78 |
8,72 |
freq [Hz] |
7074 |
10000 |
13000 |
16700 |
20040 |
24000 |
Ku [dB] |
8,65 |
8,49 |
8,43 |
8,33 |
8,26 |
8,19 |
freq [Hz] |
29000 |
33500 |
37000 |
40100 |
45100 |
47500 |
Ku [dB] |
8,13 |
8,09 |
8,02 |
7,95 |
7,88 |
7,88 |
freq [Hz] |
50100 |
60400 |
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Ku [dB] |
7,81 |
7,60 |
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c). Pomiar charakterystyki Uwy = f ( Uwe )
Freq = 1kHz
Uwe [V] |
0,05 |
0,1 |
0,145 |
0,204 |
0,255 |
0,307 |
Uwy [V] |
0,103 |
0,104 |
0,104 |
0,104 |
0,105 |
0,109 |
Uwe [V] |
0,351 |
0,4 |
1,1 |
2,0 |
3,05 |
4,09 |
Uwy [V] |
0,119 |
0,133 |
0,374 |
0,623 |
0,872 |
1,067 |
Uwe [V] |
5,06 |
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Uwy [V] |
1,196 |
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