Version 4
SHEET 1 2168 752
WIRE 800 -192 736 -192
WIRE 960 -192 800 -192
WIRE 1088 -192 960 -192
WIRE 1152 -192 1088 -192
WIRE 736 -160 736 -192
WIRE 960 -160 960 -192
WIRE 800 -128 800 -192
WIRE -16 -80 -16 -96
WIRE 1152 -80 1152 -192
WIRE 736 -64 736 -80
WIRE 736 -64 608 -64
WIRE 960 -16 960 -80
WIRE 960 0 960 -16
WIRE 640 16 80 16
WIRE 736 16 736 -64
WIRE 784 16 736 16
WIRE 800 16 800 -64
WIRE 800 16 784 16
WIRE 816 16 800 16
WIRE 912 16 896 16
WIRE 304 32 192 32
WIRE 736 32 736 16
WIRE -16 48 -16 0
WIRE -16 48 -48 48
WIRE 432 64 416 64
WIRE 544 64 512 64
WIRE -48 80 -48 48
WIRE -16 96 -16 48
WIRE 192 96 192 32
WIRE 208 96 192 96
WIRE 304 112 304 32
WIRE 304 112 272 112
WIRE 320 112 304 112
WIRE 416 112 416 64
WIRE 416 112 400 112
WIRE 80 128 80 16
WIRE 96 128 80 128
WIRE 208 128 176 128
WIRE 640 128 640 16
WIRE 960 128 960 96
WIRE 960 128 640 128
WIRE 544 144 544 64
WIRE 576 144 544 144
WIRE 736 144 736 112
WIRE 736 144 576 144
WIRE 736 176 736 144
WIRE 736 176 688 176
WIRE 800 176 736 176
WIRE 928 176 880 176
WIRE 960 176 960 128
WIRE 960 176 928 176
WIRE 992 176 960 176
WIRE 1008 176 992 176
WIRE 1120 176 1088 176
WIRE 1152 176 1152 0
WIRE 1152 176 1120 176
WIRE -16 192 -16 176
WIRE 320 192 304 192
WIRE 416 192 416 112
WIRE 416 192 400 192
WIRE 688 192 688 176
WIRE 736 192 736 176
WIRE 416 208 416 192
WIRE 448 208 416 208
WIRE 1120 208 1120 176
WIRE 304 224 304 192
WIRE 544 224 544 144
WIRE 544 224 512 224
WIRE 960 224 960 176
WIRE 448 240 416 240
WIRE 416 272 416 240
WIRE 688 272 688 256
WIRE 736 304 736 272
WIRE 784 304 736 304
WIRE 800 304 784 304
WIRE 816 304 800 304
WIRE 912 304 896 304
WIRE 304 320 304 304
WIRE 960 336 960 320
WIRE 1152 336 1152 176
WIRE 736 352 736 304
WIRE 736 352 608 352
WIRE 800 352 800 304
WIRE 736 368 736 352
WIRE 960 368 960 336
WIRE 736 480 736 448
WIRE 800 480 800 416
WIRE 800 480 736 480
WIRE 960 480 960 448
WIRE 960 480 800 480
WIRE 1152 480 1152 416
WIRE 1152 480 960 480
FLAG 1120 208 0
FLAG 928 176 Drain
FLAG 960 -16 Sp
FLAG 960 336 Sn
FLAG 784 16 Gp
FLAG 784 304 Gn
FLAG 1088 -192 +Ub
FLAG 992 176 out
FLAG 688 272 0
FLAG -48 80 0
FLAG -16 -96 +12V
FLAG -16 192 -12V
FLAG 480 192 +12V
FLAG 480 256 -12V
FLAG 304 320 0
FLAG 240 80 +12V
FLAG 240 144 -12V
FLAG 416 272 0
FLAG 576 144 korr
SYMBOL nmos 912 224 R0
SYMATTR InstName Mn
SYMATTR Value IRFP240
SYMBOL pmos 912 96 M180
SYMATTR InstName Mp
SYMATTR Value IRFP9240
SYMBOL Misc\\EuropeanResistor 944 -176 R0
SYMATTR InstName R1
SYMATTR Value 390m
SYMBOL Misc\\EuropeanResistor 944 464 M180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R2
SYMATTR Value 270m
SYMBOL Misc\\EuropeanResistor 912 0 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 100R
SYMBOL Misc\\EuropeanResistor 912 288 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100R
SYMBOL Misc\\EuropeanResistor 896 160 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL voltage 1152 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 60
SYMBOL Misc\\EuropeanResistor 720 16 R0
SYMATTR InstName R6
SYMATTR Value 1.2Meg
SYMBOL Misc\\EuropeanResistor 720 176 R0
SYMATTR InstName R7
SYMATTR Value 1.2Meg
SYMBOL Misc\\EuropeanResistor 720 -176 R0
SYMATTR InstName R8
SYMATTR Value 91k
SYMBOL Misc\\EuropeanResistor 720 352 R0
SYMATTR InstName R9
SYMATTR Value 91k
SYMBOL Misc\\EuropeanResistor 992 192 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName Rl
SYMATTR Value 8
SYMBOL zener 784 -64 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value BZX84C6V2L
SYMBOL zener 784 416 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value BZX84C6V2L
SYMBOL voltage 1152 320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 60
SYMBOL cap 704 256 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C1
SYMATTR Value 10µ
SYMATTR SpiceLine V=100
SYMBOL Opamps\\UniversalOpamp2 480 224 R0
SYMATTR InstName U1
SYMBOL voltage -16 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value 12
SYMBOL voltage -16 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value 12
SYMBOL Misc\\EuropeanResistor 528 48 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 68k
SYMBOL Misc\\EuropeanResistor 304 96 M90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 110k
SYMBOL voltage 304 208 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value .7
SYMBOL Opamps\\UniversalOpamp2 240 112 R0
SYMATTR InstName U2
SYMBOL Misc\\EuropeanResistor 80 144 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R12
SYMATTR Value 1Meg
SYMBOL Misc\\EuropeanResistor 304 208 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R13
SYMATTR Value 110k
TEXT 1024 216 Left 2 ;Speaker
TEXT -16 312 Left 2 !.lib irfp9240.lib
TEXT 208 -112 Left 2 !.tran 0 300m 30m 1m
TEXT 216 -56 Left 3 ;Offset: Uout = -5/3 Ukorr - 0,7V
TEXT 216 -24 Left 3 ;-> Ukorr = -3/5 (Uout + 0,7V)
TEXT 976 128 Left 2 ;6,76V
TEXT 560 104 Left 2 ;4,6V