Version 4
SHEET 1 6900 2132
WIRE 2896 272 2864 272
WIRE 3024 272 2960 272
WIRE 3664 336 3584 336
WIRE 3968 336 3744 336
WIRE 2864 352 2864 272
WIRE 2896 352 2864 352
WIRE 3024 352 3024 272
WIRE 3024 352 2960 352
WIRE 4192 352 4032 352
WIRE 4400 352 4192 352
WIRE 4992 352 4896 352
WIRE 3968 368 3840 368
WIRE 4992 368 4992 352
WIRE 5136 416 5104 416
WIRE 5280 416 5216 416
WIRE 3840 448 3840 368
WIRE 4032 448 3840 448
WIRE 4192 448 4192 352
WIRE 4192 448 4112 448
WIRE 2592 464 2560 464
WIRE 2752 464 2672 464
WIRE 2768 464 2752 464
WIRE 2864 464 2864 352
WIRE 2864 464 2848 464
WIRE 2896 464 2864 464
WIRE 3024 464 3024 352
WIRE 3024 464 2976 464
WIRE 3040 464 3024 464
WIRE 3200 464 3040 464
WIRE 4992 464 4992 448
WIRE 5104 464 5104 416
WIRE 5104 464 4992 464
WIRE 5104 480 5104 464
WIRE 5152 480 5104 480
WIRE 5280 480 5280 416
WIRE 5280 480 5216 480
WIRE 2560 496 2560 464
WIRE 3840 496 3840 448
WIRE 1360 544 1360 512
WIRE 1360 544 1264 544
WIRE 1264 560 1264 544
WIRE 5104 560 5104 480
WIRE 5152 560 5104 560
WIRE 1360 576 1360 544
WIRE 5280 576 5280 480
WIRE 5280 576 5216 576
WIRE 2752 592 2752 464
WIRE 2768 592 2752 592
WIRE 3840 592 3840 576
WIRE 3872 592 3840 592
WIRE 4912 592 4912 560
WIRE 4960 592 4912 592
WIRE 5056 592 5040 592
WIRE 5152 592 5056 592
WIRE 2928 608 2832 608
WIRE 3040 608 3040 464
WIRE 3040 608 2928 608
WIRE 2608 624 2544 624
WIRE 2720 624 2672 624
WIRE 2768 624 2720 624
WIRE 5056 656 5056 592
WIRE 2544 720 2544 624
WIRE 2592 720 2544 720
WIRE 2720 720 2720 624
WIRE 2720 720 2672 720
WIRE 2736 720 2720 720
WIRE 2848 720 2800 720
WIRE 2928 720 2928 608
WIRE 3600 720 3600 688
WIRE 2544 752 2544 720
WIRE 3840 752 3840 704
WIRE 3696 768 3648 768
WIRE 4736 784 4736 752
WIRE 3600 832 3600 800
WIRE 4832 832 4784 832
WIRE 4736 896 4736 864
FLAG 1264 560 0
FLAG 1360 432 V+
FLAG 1360 656 V-
FLAG 3584 336 正弦波2
IOPIN 3584 336 In
FLAG 2544 752 0
FLAG 2560 496 0
FLAG 2800 576 V+
FLAG 2800 640 V-
FLAG 3200 464 正弦波2
IOPIN 3200 464 In
FLAG 3840 752 0
FLAG 4000 320 v+
FLAG 4000 384 v-
FLAG 4400 352 方波
IOPIN 4400 352 Out
FLAG 5184 544 v+
FLAG 5184 608 v-
FLAG 5056 720 0
FLAG 4912 560 方波
IOPIN 4912 560 Out
FLAG 3600 832 0
FLAG 3696 768 Vref
FLAG 3600 688 v+
FLAG 3872 592 Vref
FLAG 4736 896 0
FLAG 4832 832 Vref-1
FLAG 4736 752 v-
FLAG 4896 352 Vref-1
SYMBOL voltage 1360 416 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage 1360 560 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V5
SYMATTR Value 5
SYMBOL EXTRA\\ExtraOpamps\\LM324_ST 2800 608 R0
SYMATTR InstName U8
SYMBOL cap 2672 608 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 100n
SYMBOL res 2688 704 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R21
SYMATTR Value 16.7k
SYMBOL cap 2800 704 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 100n
SYMBOL res 2944 704 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R22
SYMATTR Value 16.7k
SYMBOL res 2688 448 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R23
SYMATTR Value 10k
SYMBOL res 2992 448 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R24
SYMATTR Value 9k
SYMBOL res 2864 448 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R25
SYMATTR Value 15k
SYMBOL diode 2896 288 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 2960 336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL res 3824 480 R0
SYMATTR InstName R26
SYMATTR Value 6k
SYMBOL res 4128 432 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R27
SYMATTR Value 2k
SYMBOL res 3760 320 R90
WINDOW 0 48 57 VBottom 2
WINDOW 3 58 58 VTop 2
SYMATTR InstName R28
SYMATTR Value 10k
SYMBOL EXTRA\\ExtraOpamps\\LM324_ST 4000 352 R0
SYMATTR InstName U9
SYMBOL voltage 3840 608 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V8
SYMATTR Value 2.1
SYMBOL EXTRA\\ExtraOpamps\\LM324_ST 5184 576 R0
SYMATTR InstName U10
SYMBOL res 5056 576 R90
WINDOW 0 -4 59 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R29
SYMATTR Value 8k
SYMBOL cap 5040 656 R0
SYMATTR InstName C8
SYMATTR Value 470n
SYMBOL cap 5216 464 R90
WINDOW 0 12 -1 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C9
SYMATTR Value 470n
SYMBOL res 4976 352 R0
SYMATTR InstName R31
SYMATTR Value 10k
SYMBOL res 5232 400 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R32
SYMATTR Value 10k
SYMBOL Pot&Sw\\potentiometer 3584 704 R0
SYMATTR InstName U14
SYMATTR Value Rt=100 set=.58
SYMBOL Pot&Sw\\potentiometer 4720 768 R0
SYMATTR InstName U15
SYMATTR Value Rt=100 set=.8
TEXT 1776 608 Left 2 !.tran 0 50 0
TEXT 1776 672 Left 2 !;meas TRAN vpp-vo PP V(vo)
TEXT 1776 736 Left 2 !;meas TRAN vpp MIN V(三角波) FROM 1.28 TO 1.44
TEXT 1408 544 Left 2 ;直流电压偏置
TEXT 2568 824 Left 2 ;文氏桥电路，产生96Hz的正弦波
TEXT 3944 688 Left 2 ;Vref=0.7*R1/R2 占空比50%
TEXT 3768 560 Left 2 ;R1`
TEXT 4064 504 Left 2 ;R2
RECTANGLE Normal 1552 704 1200 400 2
