Version 4
SHEET 1 1936 728
WIRE 80 -192 -336 -192
WIRE 80 -128 80 -192
WIRE 80 -128 0 -128
WIRE 0 -96 0 -128
WIRE 80 -48 80 -128
WIRE 0 48 0 32
WIRE 80 48 80 32
WIRE 80 48 0 48
WIRE 80 112 80 48
WIRE 80 128 80 112
WIRE -336 176 -336 -192
WIRE -112 176 -208 176
WIRE -64 176 -112 176
WIRE -336 336 -336 256
WIRE -208 336 -208 256
WIRE 80 336 80 224
FLAG 80 336 0
FLAG -208 336 0
FLAG -336 336 0
FLAG 80 112 Vout
FLAG -112 176 Vein
SYMBOL res 32 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 470
SYMBOL voltage -336 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 -116 102 Left 2
WINDOW 3 -65 16 Left 2
SYMATTR SpiceLine Rser=1m
SYMATTR Value 10V
SYMATTR InstName V1
SYMBOL npn 16 128 R0
SYMATTR InstName Q1
SYMATTR Value BC337-25
SYMBOL voltage -208 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 -84 126 Left 2
WINDOW 0 -56 16 Left 2
WINDOW 3 -105 105 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0 0.1m 0.1m 1m 4m 3)
SYMBOL zener 16 32 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value BZX84C10L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 64 -64 R0
SYMATTR InstName L1
SYMATTR Value {L_door}
SYMATTR SpiceLine Ipk=0.9 Rser=0.248 Rpar=11054 Cpar=2.7239p mfg="Wurth Elektronik" pn="74408941100 WE-SPC 4818"
SYMBOL diode -16 -96 R0
SYMATTR InstName D2
SYMATTR Value 1N4148
TEXT -384 392 Left 2 !.tran 10m
TEXT -384 544 Left 2 !.step param L_door list  1u  5u  10u  20u  40u 100u
TEXT -320 -344 Left 2 ;Transitor am Türschloss als Schalter
TEXT -456 -296 Left 2 ;http://www.mikrocontroller.net/articles/Relais_mit_Logik_ansteuern
TEXT -384 496 Left 2 ;step param   Verschiedene Spulenwerte einsetzbar