sound impairement test simulations

03_lm3886_amp/06_simulation/Active_balanced_reciever.log

@@ -1,23 +1,56 @@
 Circuit: * C:\keyterm\git\amplifier_6c\03_lm3886_amp\06_simulation\Active_balanced_reciever.asc
 
 WARNING: Less than two connections to node AMP_OUT_SUPER.  This node is used by R17.
-Direct Newton iteration for .op point succeeded.
+Direct Newton iteration failed to find .op point.  (Use ".option noopiter" to skip.)
+Starting Gmin stepping
+Gmin = 10
+Gmin = 1.07374
+vernier = 0.5
+vernier = 0.25
+vernier = 0.125
+vernier = 0.0625
+Gmin = 1.08884
+vernier = 0.03125
+vernier = 0.015625
+Gmin = 1.03122
+vernier = 0.0078125
+vernier = 0.0104167
+vernier = 0.00520833
+Gmin = 1.01724
+vernier = 0.00260417
+vernier = 0.00347222
+Gmin = 1.01042
+vernier = 0.00173611
+vernier = 0.00231481
+vernier = 0.00115741
+Gmin = 1.00852
+vernier = 0.00154321
+vernier = 0.000771604
+Gmin = 1.00667
+vernier = 0.00102881
+vernier = 0.000514403
+vernier = 0.00068587
+Gmin = 1.00542
+vernier = 0.000514403
+vernier = 0.00068587
+vernier = 0.000514402
+Gmin = 1.00461
+Gmin = 0
+Gmin stepping failed
 
-Date: Mon Oct 10 14:07:26 2022
-Total elapsed time: 2.248 seconds.
-
-tnom = 27
-temp = 27
-method = modified trap
-totiter = 149655
-traniter = 149605
-tranpoints = 28700
-accept = 21155
-rejected = 7545
-matrix size = 209
-fillins = 171
-solver = Normal
-Thread vector: 8.2/5.0[6] 4.6/2.2[6] 1.2/0.9[6] 0.7/1.1[1]  2592/500
-Matrix Compiler1: 17.87 KB object code size  4.3/2.0/[0.9]
-Matrix Compiler2: 20.39 KB object code size  2.1/3.2/[0.8]
+Starting source stepping with srcstepmethod=0
+Source Step = 3.0303%
+Source Step = 33.3333%
+Source Step = 63.6364%
+Source Step = 93.9394%
+Source stepping succeeded in finding the operating point.
 
+.step drive_voltage=0
+Heightened Def Con from 0.00199975 to 0.00199975
+Heightened Def Con from 0.00199975 to 0.00199975
+Heightened Def Con from 0.00199975 to 0.00199975
+Heightened Def Con from 0.00399975 to 0.00399975
+.step drive_voltage=0.5
+.step drive_voltage=1
+.step drive_voltage=1.5
+.step drive_voltage=2

03_lm3886_amp/06_simulation/falstad_sim.txt

@@ -0,0 +1,134 @@
+$ 1 0.000005 382.76258214399064 72 5 43 5e-11
+409 256 160 400 160 1 0.6 -14.339204308548627 0.023100000000000002 0
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+207 320 208 320 240 4 -15
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+409 752 416 896 416 1 0.6 -14.383413640703308 0.023100000000000002 0
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+d 912 128 960 128 2 1N4148
+d 912 304 960 304 2 1N4148
+w 912 128 896 128 0
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+g 960 400 960 416 0 0
+r 1024 304 1088 304 0 10000
+409 560 144 704 144 1 0.6 -14.350256890819471 0.023100000000000002 0
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+w 480 240 480 256 0
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+207 624 192 624 224 4 -15
+w 624 112 624 96 0
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+r 544 208 544 272 0 1000
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+g 544 352 544 368 0 0
+w 544 336 544 352 0
+g 1136 336 1136 352 0 0
+w 1136 320 1136 336 0
+162 1136 224 1136 272 2 default-led 1 0 0 0.02
+w 1136 272 1136 288 0
+r 1136 144 1136 208 0 2200
+w 1136 208 1136 224 0
+207 1136 128 1136 96 4 \p15
+w 1136 128 1136 144 0
+w 416 48 400 48 0
+w 272 48 256 48 0
+w 544 48 560 48 0
+w 704 48 704 144 0
+w 480 160 560 160 0
+w 960 384 960 400 0
+w 544 272 544 288 0
+w 752 464 752 432 0
+w 544 128 560 128 0
+w 544 128 544 208 0
+t 1104 304 1136 304 0 1 -13.677953589087766 0.5597307493250995 100 spice-default
+w 1104 304 1088 304 0
+w 896 304 912 304 0
+207 -176 112 -176 80 4 \p15
+w 1024 304 992 304 0
+w 960 128 960 304 0
+w 960 304 960 336 0
+w 960 304 992 304 0
+w 704 144 752 144 0
+174 336 48 384 80 1 10000 0.401 Resistance
+w 416 48 416 160 0
+w 416 160 464 160 0
+w 416 160 368 80 0
+174 640 48 688 80 1 100000 0.5 Resistance
+w 672 80 640 48 0
+w 608 48 640 48 0
+w 544 -256 544 -208 0
+w 704 -256 704 -208 0
+w 608 -208 640 -208 0
+w 672 -176 640 -208 0
+174 640 -208 688 -176 1 100000 0.49010000000000004 Resistance
+w 704 -208 704 -112 0
+w 544 -208 560 -208 0
+r 560 -208 608 -208 0 10000
+w 288 -208 288 -256 0
+w 448 -256 448 -208 0
+w 448 -96 400 -176 0
+w 448 -208 448 -96 0
+174 368 -208 416 -176 1 10000 0.401 Resistance
+w 304 -208 288 -208 0
+w 448 -208 432 -208 0
+r 304 -208 368 -208 0 18000
+216 288 -256 448 -256 0 0.01
+216 544 -256 704 -256 0 0.01
+o 83 2 0 4098 0.009765625 0.1 0 2 83 3
+38 28 F1 0 1 2 -1 Max\sVoltage

03_lm3886_amp/06_simulation/sound_impairment_monitor.asc

@@ -0,0 +1,272 @@
+Version 4
+SHEET 1 2912 2100
+WIRE -752 896 -752 880
+WIRE -416 960 -416 944
+WIRE -752 992 -752 976
+WIRE -656 992 -752 992
+WIRE 432 1008 416 1008
+WIRE 560 1008 512 1008
+WIRE 640 1008 560 1008
+WIRE -752 1024 -752 992
+WIRE 784 1024 784 1008
+WIRE 784 1024 768 1024
+WIRE -656 1040 -656 992
+WIRE 640 1040 640 1008
+WIRE 688 1040 640 1040
+WIRE 1344 1040 1344 1024
+WIRE 1344 1040 1328 1040
+WIRE -416 1056 -416 1040
+WIRE 864 1056 864 896
+WIRE 864 1056 768 1056
+WIRE 944 1056 864 1056
+WIRE 1056 1056 1008 1056
+WIRE 1248 1056 1056 1056
+WIRE 1744 1056 1744 1040
+WIRE 1744 1056 1728 1056
+WIRE 2336 1056 2336 1040
+WIRE 688 1072 640 1072
+WIRE 1424 1072 1328 1072
+WIRE 1472 1072 1472 896
+WIRE 1472 1072 1424 1072
+WIRE 1536 1072 1472 1072
+WIRE 1648 1072 1536 1072
+WIRE 784 1088 768 1088
+WIRE 1248 1088 1168 1088
+WIRE 1888 1088 1728 1088
+WIRE 1920 1088 1888 1088
+WIRE 2112 1088 1984 1088
+WIRE 432 1104 416 1104
+WIRE 608 1104 512 1104
+WIRE 640 1104 640 1072
+WIRE 640 1104 608 1104
+WIRE 784 1104 784 1088
+WIRE 1344 1104 1328 1104
+WIRE 1648 1104 1584 1104
+WIRE -752 1120 -752 1104
+WIRE 1344 1120 1344 1104
+WIRE 1744 1120 1728 1120
+WIRE 1744 1136 1744 1120
+WIRE 1536 1152 1536 1072
+WIRE 2336 1152 2336 1136
+WIRE 2432 1152 2336 1152
+WIRE 2544 1152 2512 1152
+WIRE 2544 1184 2544 1152
+WIRE 1584 1200 1584 1104
+WIRE 1888 1200 1888 1088
+WIRE 1888 1200 1584 1200
+WIRE 608 1248 608 1104
+WIRE 624 1248 608 1248
+WIRE 864 1248 864 1056
+WIRE 864 1248 704 1248
+WIRE -752 1264 -752 1248
+WIRE -416 1264 -416 1248
+WIRE 1168 1264 1168 1088
+WIRE 1184 1264 1168 1264
+WIRE 1424 1264 1424 1072
+WIRE 1424 1264 1264 1264
+WIRE 2336 1280 2336 1152
+WIRE 1744 1296 1744 1280
+WIRE 1744 1296 1728 1296
+WIRE 560 1312 560 1008
+WIRE 1648 1312 1488 1312
+WIRE 1056 1328 1056 1056
+WIRE 1168 1328 1168 1264
+WIRE 1888 1328 1728 1328
+WIRE 1920 1328 1888 1328
+WIRE 2112 1328 2112 1088
+WIRE 2112 1328 1984 1328
+WIRE 2160 1328 2112 1328
+WIRE 2256 1328 2256 896
+WIRE 2256 1328 2240 1328
+WIRE 2272 1328 2256 1328
+WIRE 1536 1344 1536 1232
+WIRE 1648 1344 1536 1344
+WIRE -416 1360 -416 1344
+WIRE 1744 1360 1728 1360
+WIRE 2112 1360 2112 1328
+WIRE 2112 1360 2048 1360
+WIRE 1744 1376 1744 1360
+WIRE -752 1392 -752 1344
+WIRE 2112 1392 2112 1360
+WIRE 1168 1440 1168 1408
+WIRE 1536 1456 1536 1344
+WIRE 1776 1456 1536 1456
+WIRE 1888 1456 1888 1328
+WIRE 1888 1456 1856 1456
+WIRE 2112 1472 2112 1456
+WIRE 2112 1472 2048 1472
+WIRE -512 1520 -512 1504
+WIRE -672 1536 -672 1520
+WIRE 560 1536 560 1392
+WIRE 1056 1536 1056 1408
+WIRE 1168 1536 1168 1504
+WIRE 1488 1536 1488 1312
+WIRE 2112 1536 2112 1472
+WIRE 2336 1536 2336 1376
+WIRE -512 1616 -512 1600
+WIRE -672 1632 -672 1616
+FLAG -656 1040 0
+FLAG -752 880 +15
+FLAG -752 1120 -15
+FLAG 784 1008 +15
+FLAG 784 1104 -15
+FLAG 560 1536 0
+FLAG 1344 1024 +15
+FLAG 1344 1120 -15
+FLAG 1056 1536 0
+FLAG 1168 1536 0
+FLAG -416 1360 0
+FLAG -416 1056 0
+FLAG -416 944 SIN_IN
+FLAG -416 1248 SIN_REF
+FLAG 864 896 SIM_FS
+FLAG 1744 1040 +15
+FLAG 1744 1136 -15
+FLAG 1744 1280 +15
+FLAG 1744 1376 -15
+FLAG 1488 1536 0
+FLAG 2112 1536 0
+FLAG 2336 1040 +15
+FLAG 2336 1536 0
+FLAG -752 1248 Drive
+FLAG -752 1392 0
+FLAG 1472 896 SIM_SS
+FLAG 2256 896 SIM_DRIVE
+FLAG -672 1632 0
+FLAG -512 1616 0
+FLAG -512 1504 LIN_IN
+FLAG -672 1520 LIN_REF
+FLAG 2544 1184 0
+FLAG 416 1008 SIN_IN
+FLAG 416 1104 SIN_REF
+SYMBOL voltage -752 880 R0
+WINDOW 123 0 0 Left 0
+WINDOW 39 0 0 Left 0
+SYMATTR InstName V3
+SYMATTR Value 15v
+SYMBOL voltage -752 1008 R0
+SYMATTR InstName V4
+SYMATTR Value 15v
+SYMBOL AutoGenerated\\AD825 720 1056 R0
+SYMATTR InstName U7
+SYMBOL res 528 992 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R21
+SYMATTR Value 20k
+SYMBOL res 528 1088 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R22
+SYMATTR Value 20k
+SYMBOL res 544 1296 R0
+SYMATTR InstName R23
+SYMATTR Value 22k
+SYMBOL res 720 1232 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R24
+SYMATTR Value 22.1k
+SYMBOL res 896 1344 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R25
+SYMATTR Value {VR1}
+SYMBOL cap 1008 1040 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 35 32 VTop 2
+SYMATTR InstName C2
+SYMATTR Value 1ľf
+SYMBOL AutoGenerated\\AD825 1280 1072 R0
+SYMATTR InstName U8
+SYMBOL res 1280 1248 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R26
+SYMATTR Value 61k
+SYMBOL res 1424 1392 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 53 60 VTop 2
+SYMATTR InstName R27
+SYMATTR Value {VR2}
+SYMBOL res 1040 1312 R0
+SYMATTR InstName R28
+SYMATTR Value 100k
+SYMBOL res 1152 1312 R0
+SYMATTR InstName R29
+SYMATTR Value 1k
+SYMBOL cap 1152 1440 R0
+SYMATTR InstName C4
+SYMATTR Value 47ľ
+SYMBOL voltage -416 944 R0
+WINDOW 123 24 44 Left 2
+WINDOW 39 0 0 Left 0
+SYMATTR InstName IN_SINUS
+SYMATTR Value SINE(0 {sig_diff} {freq} {delay})
+SYMBOL voltage -416 1248 R0
+WINDOW 123 24 44 Left 2
+WINDOW 39 0 0 Left 0
+SYMATTR InstName OUT_SINUS
+SYMATTR Value SINE(0 1.7 {freq} {delay})
+SYMBOL AutoGenerated\\AD825 1680 1088 R0
+SYMATTR InstName U9
+SYMBOL AutoGenerated\\AD825 1680 1328 R0
+SYMATTR InstName U10
+SYMBOL res 1872 1440 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R30
+SYMATTR Value 10k
+SYMBOL res 1552 1248 R180
+WINDOW 0 36 76 Left 2
+WINDOW 3 36 40 Left 2
+SYMATTR InstName R31
+SYMATTR Value 10k
+SYMBOL diode 1920 1104 R270
+WINDOW 0 32 32 VTop 2
+WINDOW 3 0 32 VBottom 2
+SYMATTR InstName D1
+SYMATTR Value 1N4148
+SYMBOL diode 1920 1344 R270
+WINDOW 0 32 32 VTop 2
+WINDOW 3 0 32 VBottom 2
+SYMATTR InstName D2
+SYMATTR Value 1N4148
+SYMBOL cap 2096 1392 R0
+SYMATTR InstName C3
+SYMATTR Value 47n
+SYMBOL res 2256 1312 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R32
+SYMATTR Value 10k
+SYMBOL npn 2272 1280 R0
+SYMATTR InstName Q1
+SYMATTR Value BC547C
+SYMBOL res 2320 1040 R0
+SYMATTR InstName R33
+SYMATTR Value 100k
+SYMBOL voltage -752 1248 R0
+WINDOW 123 0 0 Left 0
+WINDOW 39 0 0 Left 0
+SYMATTR InstName V2
+SYMATTR Value {sim_drv}
+SYMBOL voltage -672 1520 R0
+WINDOW 123 24 44 Left 2
+WINDOW 39 0 0 Left 0
+SYMATTR InstName LIN_REF
+SYMATTR Value 1.7
+SYMBOL voltage -512 1504 R0
+WINDOW 123 24 44 Left 2
+WINDOW 39 0 0 Left 0
+SYMATTR InstName LIN_IN
+SYMATTR Value PULSE(1.7 {start_v} {delay} 15us 15us 300us 0 1)
+SYMBOL res 2528 1136 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R1
+SYMATTR Value 20k
+TEXT 368 840 Left 2 !.tran 0 5ms 0 0.001
+TEXT 360 744 Left 2 !.param VR1=1k VR2=100k sim_drv=1.2v freq=1k start_v=1.62 stop_v=1.79 delay=0.3m
+TEXT 360 776 Left 2 ;.step param drive_voltage 0 5 0.5
+TEXT 360 808 Left 2 !.param sig_diff=1.707

03_lm3886_amp/06_simulation/sound_impairment_monitor.log

@@ -0,0 +1,79 @@
+Circuit: * C:\keyterm\git\amplifier_6c\03_lm3886_amp\06_simulation\sound_impairment_monitor.asc
+
+WARNING: Specified period is not longer than the sum of Trise, Tfall, and Ton for v§lin_in.  Increasing period to 0.00033
+WARNING: Node NC_02 is floating.
+WARNING: Node NC_04 is floating.
+
+WARNING: Less than two connections to node NC_01.  This node is used by R25.
+WARNING: Less than two connections to node NC_02.  This node is used by R25.
+WARNING: Less than two connections to node NC_03.  This node is used by R27.
+WARNING: Less than two connections to node NC_04.  This node is used by R27.
+WARNING: Less than two connections to node DRIVE.  This node is used by V2.
+WARNING: Less than two connections to node LIN_REF.  This node is used by V§LIN_REF.
+WARNING: Less than two connections to node LIN_IN.  This node is used by V§LIN_IN.
+Direct Newton iteration failed to find .op point.  (Use ".option noopiter" to skip.)
+Starting Gmin stepping
+Gmin = 10
+Gmin = 1.07374
+vernier = 0.5
+vernier = 0.25
+vernier = 0.125
+vernier = 0.0625
+Gmin = 1.08884
+vernier = 0.03125
+vernier = 0.015625
+Gmin = 1.03122
+vernier = 0.0078125
+vernier = 0.0104167
+vernier = 0.00520833
+Gmin = 1.01724
+vernier = 0.00260417
+vernier = 0.00347222
+Gmin = 1.01042
+vernier = 0.00173611
+vernier = 0.00231481
+vernier = 0.00115741
+Gmin = 1.00852
+vernier = 0.00154321
+vernier = 0.000771604
+Gmin = 1.00667
+vernier = 0.00102881
+vernier = 0.000514403
+vernier = 0.00068587
+Gmin = 1.00542
+vernier = 0.000514403
+vernier = 0.00068587
+vernier = 0.000514402
+Gmin = 1.00461
+Gmin = 0
+Gmin stepping failed
+
+Starting source stepping with srcstepmethod=0
+Source Step = 3.0303%
+Source Step = 33.3333%
+Source Step = 63.6364%
+Source Step = 93.9394%
+Source stepping succeeded in finding the operating point.
+
+Heightened Def Con from 0.000800149 to 0.000800149
+Heightened Def Con from 0.000800149 to 0.000800149
+Heightened Def Con from 0.000800149 to 0.000800151
+
+Date: Wed Oct 12 15:54:45 2022
+Total elapsed time: 0.844 seconds.
+
+tnom = 27
+temp = 27
+method = modified trap
+totiter = 15002
+traniter = 9179
+tranpoints = 1715
+accept = 1263
+rejected = 455
+matrix size = 160
+fillins = 210
+solver = Normal
+Thread vector: 5.0/3.9[4] 4.3/2.6[4] 1.4/1.3[1] 0.5/0.8[1]  2592/500
+Matrix Compiler1: 17.00 KB object code size  4.2/2.3/[0.9]
+Matrix Compiler2: 16.39 KB object code size  1.8/2.3/[0.5]
+