Version 4.1 SHEET 1 5108 2076 WIRE -384 192 -1024 192 WIRE -160 192 -384 192 WIRE 512 192 -32 192 WIRE 608 192 512 192 WIRE 1632 208 736 208 WIRE 1744 208 1632 208 WIRE 1840 208 1744 208 WIRE 1952 208 1920 208 WIRE 2064 208 2032 208 WIRE 2272 208 2128 208 WIRE -1024 224 -1024 192 WIRE -400 224 -464 224 WIRE -272 224 -400 224 WIRE 1632 224 1632 208 WIRE -272 240 -272 224 WIRE -160 240 -160 192 WIRE -32 240 -32 192 WIRE 608 240 608 192 WIRE 736 240 736 208 WIRE 2272 240 2272 208 WIRE 1632 320 1632 304 WIRE -464 432 -464 224 WIRE -464 432 -1024 432 WIRE -1024 464 -1024 432 FLAG -384 192 info_signal FLAG 512 192 Usym FLAG 2272 208 out2 FLAG -1024 304 0 FLAG -400 224 carrier_signal FLAG -1024 544 0 FLAG -32 320 0 FLAG -272 320 0 FLAG -160 320 0 FLAG 1744 208 out1 FLAG 736 320 0 FLAG 608 320 0 FLAG 1632 320 0 FLAG 2272 320 0 SYMBOL voltage -1024 208 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName audio_signal SYMATTR Value SINE(0 300m 1000) SYMBOL voltage -1024 448 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName sinusoidal_carrier_wave SYMATTR Value SINE(0 1 100k) SYMBOL bv -32 224 R0 WINDOW 3 43 74 Left 2 SYMATTR Value V=V(info_signal)+V(carrier_signal) SYMATTR InstName B1 SYMBOL res -176 224 R0 SYMATTR InstName R1 SYMATTR Value 50 SYMBOL res -288 224 R0 SYMATTR InstName R2 SYMATTR Value 50 SYMBOL res 592 224 R0 SYMATTR InstName R4 SYMATTR Value 50 SYMBOL bi 736 240 R0 SYMATTR InstName B2 SYMATTR Value I=a0+a1*V(Usym)+a2*square(V(Usym))+a3*V(Usym)*square(V(Usym)) SYMBOL res 1616 208 R0 SYMATTR InstName R3 SYMATTR Value 50 SYMBOL res 2256 224 R0 SYMATTR InstName R5 SYMATTR Value 50 SYMBOL ind 1824 224 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 1.25m SYMBOL cap 2128 192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value {C1} SYMBOL res 2048 192 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 2 TEXT -1064 632 Left 2 !.tran 4m TEXT 440 -240 Center 4 ;01>@0B>@=0 @>1>B0 5\n"# #/&/  '  ! TEXT -1072 136 Left 2 ;65@5;> V=D>@<0FV9=>3> (0=0;>3>2>3>) A83=0;C TEXT -296 136 Left 2 ;CC<0B>@ 42>E =0?@C3 TEXT -160 -128 Left 3 ;1.5B0 @>1>B8\n>A;V465==O D>@<C20==O @04V>A83=0;V2 7 0<?;VBC4=>N <>4C;OFVTN 70 4>?><>3>N =5;V=V9=>3> \n@04V>5;5:B@>==>3> :>;0. 01CBBO ?@0:B8G=8E =028G>: 287=0G5==O 70 4>?><>3>N >AF8;>3@0D0 \n:>5DVFVT=B0 3;818=8 <>4C;OFVW @04V>A83=0;C 7 0<?;VBC4=>N <>4C;OFVTN, 2<V==O =0;03>465==O \n?@8AB@>N D>@<C20==O @04V>A83=0;V2 7 0<?;VBC4=>N <>4C;OFVTN 70 4>?><>3>N =5;V=V9=>3> \n@04V>5;5:B@>==>3> :>;0. =0B8 =0A;V4:8 =5?@028;L=>W @>1>B8 ?@8AB@>N. TEXT -1072 376 Left 2 ;65@5;> A83=0;C ?5@5=>A=8:0 TEXT 568 376 Left 2 ;5;V=V9=5 @04V>5;5:B@>==5 :>;> (G>B8@8?>;NA=8:), 0<?;VBC4=0 \nE0@0:B5@8AB8:0, O:>3> 0?@>:A8<CTBLAO AB5?5=528< ?>;V=><><\n =5 =86G5 4@C3>3> AB5?5=O TEXT 568 464 Left 2 !.param a0=0.1 a1=0.0453 a2=0.039 a3=0.005 TEXT 1800 128 Left 2 ;!<C3>289 DV;LB@('% :>;820;L=>3> :>=BC@C) TEXT 1800 408 Left 2 !.param F0=100k TEXT -696 688 Left 4 ;0240==O 1.\n1.1. >@8ABCNG8AL =0AB@>N20==O<8 35=5@0B>@0, 2AB0=>2VBL (73V4=> 20@V0=B0) ?0@0<5B@8 -A83=0;C: G0AB>BC A83=0;C\n ?5@5=>A=8:0 , G0AB>B0 V=D>@<0FV9=>3> A83=0;C , :>5DVFVT=B 3;818=8 <>4C;OFVW 70 %.\n1.2. 8:>@8AB>2CNG8 2V4?>2V4=V <5B>48:8, ?5@52V@B5 4>AB>2V@=VABL 7=0G5=L F8E ?0@0<5B@V2 70 4>?><>3>N >AF8;>3@0D0.\n1.3. 8:>=09B5 A?>AB5@565==O >AF8;>3@0<8 -A83=0;C C @07V 7<V=8:\n 0) G0AB>B8 A83=0;C ?5@5=>A=8:0 (71V;LH8BL C 420 @078);\n 1) G0AB>B8 V=D>@<0FV9=>3> A83=0;C (71V;LH8BL C 420 @078);-\n 2) :>5DVFVT=B0 3;818=8 <>4C;OFVW (2AB0=>2VBL 35 %)\n.0240==O 2.\n2. 5@52V@B5 ?@0F5740B=VABL <0:5B0 ?@8AB@>N D>@<C20==O @04V>A83=0;C 7 0<?;VBC4=>N <>4C;OFVTN B0 74V9A=VBL 9>3> \n=0;03>465==O 73V4=> 7 ?>AB02;5=>N 7040G5N. V4 G0A =0;03>465==O <0:5B0 =5>1EV4=> 70157?5G8B8:\n2.1. 5;V=V9=89 @568< @>1>B8 @04V>5;5:B@>==>3> :>;0.\n2.2. >7<VI5==O A?5:B@0 -A83=0;C 2 G0AB>B=V9 A<C7V ?@>?CA:0==O A<C3>2>3> DV;LB@0 (!$).\n3. >A;V4VBL 7<V=8 D>@<8 -A83=0;C (7<V=C D>@<8 - A83=0;C A?>AB5@V30B8 V >?8AC20B8 70 >AF8;>3@0<>N V, O:I> F5 <>6;82>, 287=0G0B8 :>5DVFVT=B 3;818=8 <>4C;OFVW):\n3.1. # @07V ?5@5E>4C 2V4 =5;V=V9=>3> @568<C @>1>B8 @04V>5;5:B@>==>3> :>;0 4> ;V=V9=>3>.\n3.2. 82>4OG8 25@E=N 1VG=C A:;04>2C A?5:B@0 -A83=0;C 70 <56V A<C38 ?@>?CA:0==O !$ (4>AO30TBLAO 71V;LH5==O< G0AB>B8 A83=0;C ?5@5=>A=8:0).\n3.3. 82>4OG8 =86=N 1VG=C A:;04>2C A?5:B@0 -A83=0;C 70 <56V A<C38 ?@>?CA:0==O !$ (4>AO30TBLAO 7<5=H5==O< G0AB>B8 A83=0;C ?5@5=>A=8:0).\n3.4. 82>4OG8 >1842V 1VG=V A:;04>2V A?5:B@0 70 <56V A<C38 ?@>?CA:0==O !$ (4>AO30TBLAO 71V;LH5==O< G0AB>B8 V=D>@<0FV9=>3> A83=0;C). :A?5@8<5=B @5:><5=4CTBLAO 28:>=0B8 B@8GV V7 71V;LH5==O< G0AB>B8 V=D>@<0FV9=>3> A83=0;C:\n0) 2 2 @078; 1) 2 10 @07V2; 2) 2 100 @07V2. TEXT 1800 376 Left 2 !.param L1=1.25m C1=1/(L1*square(2*pi*F0)) RECTANGLE Normal -496 336 -1072 160 1 RECTANGLE Normal -496 576 -1072 400 1 RECTANGLE Normal 464 352 -304 160 1 RECTANGLE Normal 1696 352 576 160 1 RECTANGLE Normal 2176 160 1808 352 1