Version 4
SHEET 1 1048 680
WIRE -880 -320 -1088 -320
WIRE -880 -272 -960 -272
WIRE -640 -272 -688 -272
WIRE -512 -272 -560 -272
WIRE -400 -272 -512 -272
WIRE -1088 -240 -1088 -320
WIRE -960 -240 -960 -272
WIRE -512 -240 -512 -272
WIRE -400 -240 -432 -240
WIRE -320 -240 -336 -240
WIRE -240 -240 -256 -240
WIRE -192 -240 -240 -240
WIRE -80 -240 -112 -240
WIRE 272 -240 0 -240
WIRE -432 -192 -432 -240
WIRE -240 -192 -240 -240
WIRE 32 -160 32 -192
WIRE -512 -144 -512 -176
WIRE -1088 -128 -1088 -160
WIRE -960 -128 -960 -160
WIRE -432 -112 -240 -192
WIRE -240 -112 -432 -192
WIRE -624 -80 -624 -112
WIRE -880 -64 -1168 -64
WIRE -432 -64 -432 -112
WIRE -400 -64 -432 -64
WIRE -1168 -32 -1168 -64
WIRE -400 -32 -432 -32
WIRE -240 -32 -240 -112
WIRE -240 -32 -336 -32
WIRE -192 -32 -240 -32
WIRE 32 -32 32 -80
WIRE 32 -32 -112 -32
WIRE -1216 -16 -1232 -16
WIRE -1008 16 -1056 16
WIRE -880 16 -928 16
WIRE -1216 32 -1296 32
WIRE -624 48 -624 0
WIRE -624 48 -688 48
WIRE -192 48 -624 48
WIRE -80 48 -112 48
WIRE 32 48 32 -32
WIRE 32 48 -16 48
WIRE 64 48 32 48
WIRE 128 48 64 48
WIRE -1296 64 -1296 32
WIRE -1056 64 -1056 16
WIRE -928 64 -928 16
WIRE 368 64 336 64
WIRE 32 80 32 48
WIRE 128 80 96 80
WIRE 272 80 272 -240
WIRE 272 80 192 80
WIRE 336 80 336 64
WIRE 336 80 272 80
WIRE 336 96 336 80
WIRE 368 96 336 96
WIRE 464 96 432 96
WIRE -1296 176 -1296 144
WIRE -1168 176 -1168 48
WIRE -1056 176 -1056 144
WIRE -928 176 -928 144
WIRE -432 176 -432 -32
WIRE 32 176 32 144
WIRE 96 176 96 80
FLAG -960 -128 0
FLAG -1168 176 0
FLAG -1232 -16 0
FLAG -1296 176 0
FLAG -1088 -128 0
FLAG -880 -272 3.3V
FLAG -880 -320 12V
FLAG -624 -112 12V
FLAG 32 176 0
FLAG 32 -192 3.3V
FLAG -432 176 0
FLAG 96 176 0
FLAG 464 96 BUZZER
FLAG -512 -144 0
FLAG -688 -272 DREHZAHL
FLAG -688 48 1.8BAR
FLAG -880 -64 1.8BAR
FLAG -928 176 0
FLAG -880 16 DREHZAHL
FLAG 64 48 C
FLAG -1056 176 0
FLAG -1008 16 DZFREQ
FLAG -1296 32 1.8BARLOG
SYMBOL Digital\\or -368 -112 R0
WINDOW 123 -8 24 Left 2
SYMATTR InstName A1
SYMATTR Value2 vhigh=3.3 vlow=0 trise=5n
SYMBOL voltage -960 -256 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL sw -1168 -48 R0
SYMATTR InstName S1
SYMBOL voltage -1296 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 1 18 1m 1m 1)
SYMBOL res -640 -96 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL voltage -1088 -256 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 12
SYMBOL res -96 32 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 150
SYMBOL diode -16 32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D5
SYMATTR Value 1N4148
SYMBOL cap 16 80 R0
SYMATTR InstName C2
SYMATTR Value 6.8µ
SYMBOL res 16 -176 R0
SYMATTR InstName R7
SYMATTR Value 680k
SYMBOL Digital\\or -368 -320 R0
WINDOW 123 -8 24 Left 2
SYMATTR InstName A2
SYMATTR Value2 vhigh=3.3 vlow=0 trise=5n
SYMBOL Digital\\or 160 0 R0
WINDOW 123 -8 24 Left 2
SYMATTR InstName A3
SYMATTR Value2 vhigh=3.3 vlow=0 trise=5n
SYMBOL Digital\\or 400 16 R0
WINDOW 123 -8 24 Left 2
SYMATTR InstName A4
SYMATTR Value2 vhigh=3.3 vlow=0 trise=5n
SYMBOL cap -256 -256 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL res -96 -48 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 330k
SYMBOL res -96 -256 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 68.1k
SYMBOL res 16 -256 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 13.3k
SYMBOL res -544 -288 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 100k
SYMBOL cap -528 -240 R0
SYMATTR InstName C1
SYMATTR Value 222p
SYMBOL bv -928 48 R0
SYMATTR InstName B1
SYMATTR Value V=3.3*(idtmod(V(DZFREQ),0,1)>0.8)
SYMBOL voltage -1056 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 96 Invisible 2
SYMATTR InstName V4
SYMATTR Value PWL(0 0.0 2 0 3 300 8 300 9 600 15 600 16 300)
TEXT 312 -264 Left 2 !.tran 0 20 0 100u
TEXT 312 -240 Left 2 !.model SW SW