Version 4
SHEET 1 880 680
WIRE 160 144 128 144
WIRE 240 160 224 160
WIRE 160 176 48 176
WIRE 128 240 128 144
WIRE 384 240 384 208
WIRE 384 240 128 240
WIRE 384 256 384 240
FLAG -48 256 0
FLAG 48 256 0
FLAG 192 192 0
FLAG -48 176 15V
FLAG 192 128 15V
FLAG 384 112 15V
FLAG 384 336 0
FLAG 384 240 OUT
FLAG 48 176 IN
SYMBOL Opamps\\opamp2 192 96 R0
SYMATTR InstName U1
SYMATTR Value LM358/NS
SYMBOL voltage -48 160 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 15V
SYMBOL voltage 48 160 R0
WINDOW 0 37 37 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 10 .2 1 1 1)
SYMBOL npn 320 112 R0
SYMATTR InstName Q1
SYMBOL res 368 240 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 336 144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1k
TEXT 40 56 Left 2 !.include LM358.lib
TEXT 88 280 Left 2 !.tran 0 1.3 0.1 startup uic
TEXT 432 312 VLeft 2 ;Last
TEXT 176 80 Left 2 ;R2 ist evtl. für Stabilität nötig.