mirror of
https://github.com/ra3xdh/qucs_s
synced 2025-03-28 21:13:26 +00:00
64 lines
2.2 KiB
XML
64 lines
2.2 KiB
XML
<Qucs Schematic 0.0.5>
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<Properties>
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<View=0,0,800,800,1,0,0>
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<Grid=10,10,1>
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<DataSet=notch.dat>
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<DataDisplay=notch.dpl>
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<OpenDisplay=1>
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</Properties>
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<Symbol>
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</Symbol>
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<Components>
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<GND * 1 130 370 0 0 0 0>
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<C C1 1 210 170 -26 17 0 0 "1.01u" 1>
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<R R5 1 310 120 -26 15 0 0 "10k" 1 "26.85" 0 "european" 0>
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<R R3 1 390 200 -26 15 0 0 "1k" 1 "26.85" 0 "european" 0>
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<R R4 1 470 280 -26 -47 0 2 "1k" 1 "26.85" 0 "european" 0>
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<R R2 1 300 260 -26 15 0 0 "1k" 1 "26.85" 0 "european" 0>
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<C C2 1 500 170 17 -26 0 1 "1u" 1>
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<.DC DC1 1 160 40 0 33 0 0 "26.85" 0 "0.001" 0 "1 pA" 0 "1 uV" 0 "no" 0 "150" 0 "no" 0 "none" 0>
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<OpAmp OP1 1 210 260 -26 42 0 0 "1e6" 0 "15 V" 0>
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<OpAmp OP2 1 380 280 -26 42 0 0 "1e6" 0 "15 V" 0>
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<Eqn Eqn1 1 340 40 -23 12 0 0 "Gain=dB(Out.v/In.v)" 1 "yes" 0>
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<R R1 1 130 340 -50 -26 1 1 "10k" 1 "26.85" 0 "european" 0>
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<GND * 1 40 250 0 0 0 0>
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<Vac V1 1 40 220 18 -26 0 1 "1uV" 0 "1 GHz" 0 "0" 0>
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<.AC AC1 1 190 370 0 33 0 0 "log" 1 "5" 1 "500" 1 "100" 1>
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</Components>
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<Wires>
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<420 280 430 280 "" 0 0 0 "">
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<420 200 430 200 "" 0 0 0 "">
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<430 280 440 280 "" 0 0 0 "">
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<430 200 430 280 "" 0 0 0 "">
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<330 260 340 260 "" 0 0 0 "">
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<250 260 260 260 "" 0 0 0 "">
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<240 170 260 170 "" 0 0 0 "">
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<260 260 270 260 "" 0 0 0 "">
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<260 170 260 260 "" 0 0 0 "">
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<130 240 130 310 "" 0 0 0 "">
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<130 240 180 240 "" 0 0 0 "">
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<130 170 130 240 "" 0 0 0 "">
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<130 170 180 170 "" 0 0 0 "">
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<500 200 500 280 "" 0 0 0 "">
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<340 260 350 260 "" 0 0 0 "">
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<340 200 340 260 "" 0 0 0 "">
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<340 200 360 200 "" 0 0 0 "">
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<340 120 500 120 "Out" 450 90 75 "">
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<500 120 500 140 "" 0 0 0 "">
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<160 280 180 280 "" 0 0 0 "">
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<160 280 160 320 "" 0 0 0 "">
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<160 320 340 320 "" 0 0 0 "">
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<340 300 350 300 "" 0 0 0 "">
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<340 320 500 320 "" 0 0 0 "">
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<340 300 340 320 "" 0 0 0 "">
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<500 280 500 320 "" 0 0 0 "">
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<40 120 40 190 "" 0 0 0 "">
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<40 120 280 120 "In" 90 90 18 "">
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</Wires>
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<Diagrams>
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</Diagrams>
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<Paintings>
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<Text 320 350 12 #000000 0 "50Hz notch filter:\nbuilt by use of extremely high Q gyrator,\nOpAmps fake a 10.1Henry+0.5mOhm coil\nthat forms resonance circuit with C2">
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<Text 320 420 12 #000000 0 "OpAmp gyrator fakes:\ninductance = C1*R1*R2*R4/R3\nresistance = 0.5*R2*R4/R3/OpAmpGain">
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</Paintings>
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