Falls jemand mitspielen will, hier der LTSpice File:
Version 4 SHEET 1 1388 804 WIRE 32 96 -992 96 WIRE 304 96 128 96 WIRE 624 96 400 96 WIRE 736 96 624 96 WIRE 848 96 736 96 WIRE 960 96 848 96 WIRE 1072 96 960 96 WIRE 1184 96 1072 96 WIRE 624 112 624 96 WIRE 736 112 736 96 WIRE 848 112 848 96 WIRE 960 112 960 96 WIRE 1072 112 1072 96 WIRE 1184 112 1184 96 WIRE -992 128 -992 96 WIRE 304 128 256 128 WIRE 512 128 400 128 WIRE 256 176 256 128 WIRE 256 176 -464 176 WIRE 256 208 256 176 WIRE -256 224 -320 224 WIRE -144 224 -192 224 WIRE 512 224 512 128 WIRE 624 224 624 176 WIRE 624 224 512 224 WIRE 736 224 736 176 WIRE 736 224 624 224 WIRE 848 224 848 176 WIRE 848 224 736 224 WIRE 960 224 960 176 WIRE 960 224 848 224 WIRE 1072 224 1072 176 WIRE 1072 224 960 224 WIRE 1184 224 1184 176 WIRE 1184 224 1072 224 WIRE -992 240 -992 208 WIRE 512 240 512 224 WIRE -672 288 -720 288 WIRE -560 288 -608 288 WIRE 256 320 256 288 WIRE 512 336 512 320 WIRE -224 368 -224 336 WIRE -464 384 -464 176 WIRE -432 384 -464 384 WIRE -320 384 -320 224 WIRE -320 384 -352 384 WIRE -256 384 -320 384 WIRE -144 400 -144 224 WIRE -144 400 -192 400 WIRE 112 400 112 144 WIRE 112 400 -144 400 WIRE -720 416 -720 288 WIRE -672 416 -720 416 WIRE -560 416 -560 288 WIRE -560 416 -592 416 WIRE -528 416 -560 416 WIRE -256 416 -528 416 WIRE 816 416 816 368 WIRE 944 416 944 368 WIRE -528 448 -528 416 WIRE 256 448 256 400 WIRE -720 464 -720 416 WIRE -256 496 -256 480 WIRE -224 496 -224 432 WIRE -224 496 -256 496 WIRE 816 528 816 496 WIRE 944 528 944 496 WIRE -720 576 -720 544 WIRE -528 576 -528 528 FLAG -992 240 0 FLAG -720 576 0 FLAG 512 336 0 FLAG 816 528 0 FLAG 816 368 VDD FLAG 944 528 0 FLAG 944 368 VEE FLAG -224 336 VDD FLAG -256 480 VEE FLAG 256 448 0 FLAG -528 576 0 SYMBOL voltage -992 112 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 1.5 SYMBOL nmos 32 144 R270 WINDOW 0 105 -3 VRight 0 WINDOW 3 75 -3 VRight 0 SYMATTR InstName M1 SYMATTR Value FDS6699S SYMBOL schottky 608 112 R0 SYMATTR InstName D1 SYMATTR Value MBR735 SYMATTR Description Diode SYMATTR Type diode SYMBOL voltage -720 448 R0 WINDOW 3 -436 106 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value PULSE(-1 1.45 1u 1u 1u 300u 1m 1) SYMBOL res 496 224 R0 SYMATTR InstName R1 SYMATTR Value 100K SYMBOL schottky 720 112 R0 SYMATTR InstName D2 SYMATTR Value MBR735 SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 832 112 R0 SYMATTR InstName D3 SYMATTR Value MBR735 SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 944 112 R0 SYMATTR InstName D4 SYMATTR Value MBR735 SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 1056 112 R0 SYMATTR InstName D5 SYMATTR Value MBR735 SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 1168 112 R0 SYMATTR InstName D6 SYMATTR Value MBR735 SYMATTR Description Diode SYMATTR Type diode SYMBOL voltage 816 400 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value 20 SYMBOL voltage 944 512 M180 WINDOW 0 24 104 Left 0 WINDOW 3 24 16 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V4 SYMATTR Value 5 SYMBOL res -448 400 R270 WINDOW 0 66 47 VTop 0 WINDOW 3 64 49 VBottom 0 SYMATTR InstName R7 SYMATTR Value 1K SYMBOL res 240 304 R0 SYMATTR InstName R8 SYMATTR Value 1m SYMBOL tline 352 112 R0 SYMATTR InstName T1 SYMATTR Value Td=15n Z0=1.5 SYMBOL cap -256 240 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C1 SYMATTR Value 22p SYMBOL ind 240 192 R0 SYMATTR InstName L1 SYMATTR Value 30n SYMBOL Opamps\\LT1677 -224 336 R0 SYMATTR InstName U1 SYMBOL res -688 432 R270 WINDOW 0 66 47 VTop 0 WINDOW 3 64 49 VBottom 0 SYMATTR InstName R2 SYMATTR Value 4.99K SYMBOL res -544 432 R0 SYMATTR InstName R3 SYMATTR Value 1K SYMBOL cap -672 304 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C2 SYMATTR Value 4.3n TEXT -1002 336 Left 0 !.tran 1m TEXT 24 280 Left 0 ;V(n007)