Version 4
SHEET 1 1728 1024
WIRE -1520 -144 -1680 -144
WIRE -1392 -144 -1520 -144
WIRE -1328 -144 -1392 -144
WIRE -1248 -144 -1328 -144
WIRE -1120 -144 -1248 -144
WIRE -1072 -144 -1120 -144
WIRE -752 -144 -992 -144
WIRE -704 -144 -752 -144
WIRE -1680 -112 -1680 -144
WIRE -1520 -112 -1520 -144
WIRE -1392 -112 -1392 -144
WIRE -1248 -112 -1248 -144
WIRE -1120 -112 -1120 -144
WIRE -816 -64 -880 -64
WIRE -704 -64 -704 -144
WIRE -704 -64 -736 -64
WIRE -1328 -16 -1328 -144
WIRE -1248 -16 -1248 -48
WIRE -1120 -16 -1120 -48
WIRE -1120 -16 -1248 -16
WIRE -1392 0 -1392 -32
WIRE -1360 0 -1392 0
WIRE -1280 16 -1296 16
WIRE -1216 16 -1280 16
WIRE -1152 16 -1216 16
WIRE -1072 16 -1152 16
WIRE -1040 16 -1072 16
WIRE -928 16 -960 16
WIRE -704 16 -704 -64
WIRE -1792 32 -1840 32
WIRE -1680 32 -1680 -32
WIRE -1680 32 -1728 32
WIRE -1600 32 -1680 32
WIRE -1360 32 -1600 32
WIRE -1152 48 -1152 16
WIRE -1072 48 -1072 16
WIRE -1392 64 -1392 0
WIRE -1392 64 -1440 64
WIRE -1216 64 -1216 16
WIRE -1680 80 -1680 32
WIRE -1440 112 -1440 64
WIRE -880 112 -880 32
WIRE -1584 160 -1600 160
WIRE -1520 160 -1520 -32
WIRE -1520 160 -1584 160
WIRE -1504 160 -1520 160
WIRE -1392 160 -1392 64
WIRE -1216 160 -1216 128
WIRE -1216 160 -1392 160
WIRE -1152 160 -1152 128
WIRE -1152 160 -1216 160
WIRE -1040 160 -1152 160
WIRE -880 160 -880 112
WIRE -880 160 -960 160
WIRE -1840 176 -1840 32
WIRE -880 176 -880 160
WIRE -1600 192 -1600 160
WIRE -1520 208 -1520 160
WIRE -1440 240 -1440 208
WIRE -1392 240 -1440 240
WIRE -1072 240 -1072 112
WIRE -1072 240 -1392 240
WIRE -1840 304 -1840 256
WIRE -1680 304 -1680 160
WIRE -1680 304 -1840 304
WIRE -1600 304 -1600 256
WIRE -1600 304 -1680 304
WIRE -1520 304 -1520 288
WIRE -1520 304 -1600 304
WIRE -1328 304 -1328 48
WIRE -1328 304 -1520 304
WIRE -1248 304 -1248 -16
WIRE -1248 304 -1328 304
WIRE -880 304 -880 256
WIRE -880 304 -1248 304
WIRE -800 304 -880 304
WIRE -704 304 -704 96
WIRE -704 304 -800 304
WIRE -800 368 -800 304
FLAG -800 368 0
FLAG -1280 16 Q
FLAG -880 -64 Drain
FLAG -880 112 sn
FLAG -1600 32 noninv
FLAG -1392 0 inv
FLAG -752 -144 Ub
FLAG -1248 -144 Uop
FLAG -1392 240 e
FLAG -1584 160 b
SYMBOL nmos -928 -64 R0
SYMATTR InstName M1
SYMATTR Value IRFP240
SYMBOL Misc\\EuropeanResistor -1056 176 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor -864 272 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R2
SYMATTR Value .47
SYMBOL Misc\\EuropeanResistor -1056 32 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 -3 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL voltage -704 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 60
SYMBOL Misc\\EuropeanResistor -1664 176 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL cap -1792 48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 100n
SYMBOL Misc\\EuropeanResistor -832 -48 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R17
SYMATTR Value 8
SYMBOL Opamps\\OP27 -1328 -48 R0
WINDOW 3 -32 -130 Left 2
SYMATTR InstName U2
SYMBOL cap -1264 -112 R0
WINDOW 3 27 49 Left 2
SYMATTR Value 10µ
SYMATTR InstName C1
SYMBOL zener -1104 -48 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -18 122 Left 2
SYMATTR InstName D2
SYMATTR Value BZX84C12L
SYMBOL Misc\\EuropeanResistor -976 -160 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 4K7
SYMBOL Misc\\EuropeanResistor -1168 32 R0
WINDOW 3 36 71 Left 2
SYMATTR Value 1Meg
SYMATTR InstName R5
SYMBOL voltage -1840 160 R0
WINDOW 3 -33 180 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 1.7 400)
SYMATTR InstName V1
SYMBOL Misc\\EuropeanResistor -1696 -128 R0
WINDOW 0 -36 36 Left 2
WINDOW 3 -75 75 Left 2
SYMATTR InstName R7
SYMATTR Value 120K
SYMBOL Misc\\EuropeanResistor -1408 -128 R0
SYMATTR InstName R8
SYMATTR Value 12K
SYMBOL diode -1056 112 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -89 28 Left 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL Misc\\EuropeanResistor -1536 -128 R0
SYMATTR InstName R9
SYMATTR Value 22K
SYMBOL Misc\\EuropeanResistor -1536 192 R0
SYMATTR InstName R10
SYMATTR Value 4K7
SYMBOL npn -1504 112 R0
SYMATTR InstName Q1
SYMATTR Value BC547B
SYMBOL cap -1616 192 R0
SYMATTR InstName C3
SYMATTR Value 100n
SYMBOL cap -1232 64 R0
SYMATTR InstName C4
SYMATTR Value 8p2
TEXT -1872 368 Left 2 !.tran 0 25m 5m 100µ