Version 4
SHEET 1 1728 1024
WIRE -1456 -144 -1680 -144
WIRE -1392 -144 -1456 -144
WIRE -1312 -144 -1392 -144
WIRE -1216 -144 -1312 -144
WIRE -1136 -144 -1216 -144
WIRE -816 -144 -1056 -144
WIRE -768 -144 -816 -144
WIRE -1680 -128 -1680 -144
WIRE -1456 -112 -1456 -144
WIRE -1312 -112 -1312 -144
WIRE -1216 -112 -1216 -144
WIRE -880 -64 -944 -64
WIRE -768 -64 -768 -144
WIRE -768 -64 -800 -64
WIRE -1680 -16 -1680 -48
WIRE -1648 -16 -1680 -16
WIRE -1632 -16 -1648 -16
WIRE -1536 -16 -1552 -16
WIRE -1392 -16 -1392 -144
WIRE -1312 -16 -1312 -48
WIRE -1216 -16 -1216 -48
WIRE -1216 -16 -1312 -16
WIRE -1456 0 -1456 -32
WIRE -1424 0 -1456 0
WIRE -1344 16 -1360 16
WIRE -1280 16 -1344 16
WIRE -1216 16 -1280 16
WIRE -1136 16 -1216 16
WIRE -1104 16 -1136 16
WIRE -992 16 -1024 16
WIRE -768 16 -768 -64
WIRE -1792 32 -1840 32
WIRE -1536 32 -1536 -16
WIRE -1536 32 -1728 32
WIRE -1488 32 -1536 32
WIRE -1424 32 -1488 32
WIRE -1136 32 -1136 16
WIRE -1280 64 -1280 16
WIRE -1216 64 -1216 16
WIRE -1680 80 -1680 -16
WIRE -1840 112 -1840 32
WIRE -944 112 -944 32
WIRE -1456 192 -1456 0
WIRE -1280 192 -1280 128
WIRE -1280 192 -1456 192
WIRE -1216 192 -1216 144
WIRE -1216 192 -1280 192
WIRE -1136 192 -1136 176
WIRE -1136 192 -1216 192
WIRE -1104 192 -1136 192
WIRE -944 192 -944 112
WIRE -944 192 -1024 192
WIRE -1648 208 -1648 -16
WIRE -944 208 -944 192
WIRE -1840 224 -1840 192
WIRE -1680 304 -1680 160
WIRE -1648 304 -1648 272
WIRE -1648 304 -1680 304
WIRE -1392 304 -1392 48
WIRE -1392 304 -1648 304
WIRE -1312 304 -1312 -16
WIRE -1312 304 -1392 304
WIRE -944 304 -944 288
WIRE -944 304 -1312 304
WIRE -864 304 -944 304
WIRE -768 304 -768 96
WIRE -768 304 -864 304
WIRE -864 336 -864 304
FLAG -864 336 0
FLAG -1344 16 Q
FLAG -944 -64 Drain
FLAG -944 112 sn
FLAG -1488 32 noninv
FLAG -1456 0 inv
FLAG -816 -144 Ub
FLAG -1312 -144 Uop
FLAG -1840 224 0
SYMBOL nmos -992 -64 R0
SYMATTR InstName M1
SYMATTR Value IRFP240
SYMBOL Misc\\EuropeanResistor -1120 208 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor -928 304 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R2
SYMATTR Value .47
SYMBOL Misc\\EuropeanResistor -1120 32 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 -3 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL voltage -768 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 -896 -48 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R17
SYMATTR Value 20
SYMBOL Opamps\\OP27 -1392 -48 R0
WINDOW 3 -32 -130 Left 2
SYMATTR InstName U2
SYMBOL cap -1328 -112 R0
WINDOW 3 27 49 Left 2
SYMATTR Value 10µ
SYMATTR InstName C1
SYMBOL zener -1200 -48 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -18 122 Left 2
SYMATTR InstName D2
SYMATTR Value BZX84C12L
SYMBOL Misc\\EuropeanResistor -1040 -160 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 4K7
SYMBOL Misc\\EuropeanResistor -1232 48 R0
WINDOW 3 36 71 Left 2
SYMATTR Value 1Meg
SYMATTR InstName R5
SYMBOL voltage -1840 96 R0
WINDOW 3 -33 180 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 .7 8k)
SYMATTR InstName V1
SYMBOL Misc\\EuropeanResistor -1696 -144 R0
WINDOW 0 -27 43 Left 2
WINDOW 3 -40 75 Left 2
SYMATTR InstName R7
SYMATTR Value 120K
SYMBOL Misc\\EuropeanResistor -1472 -128 R0
SYMATTR InstName R8
SYMATTR Value 12K
SYMBOL cap -1296 64 R0
SYMATTR InstName C4
SYMATTR Value 8p2
SYMBOL Misc\\EuropeanResistor -1648 0 R270
WINDOW 3 5 56 VBottom 2
WINDOW 0 27 56 VTop 2
SYMATTR Value 1Meg
SYMATTR InstName R11
SYMBOL cap -1664 208 R0
SYMATTR InstName C5
SYMATTR Value 100n
SYMBOL diode -1120 96 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMBOL Misc\\EuropeanResistor -1152 80 R0
SYMATTR InstName R9
SYMATTR Value 56k
TEXT -1864 312 Left 2 !.tran 0 200µ 0 10µ