Version 4
SHEET 1 1044 680
WIRE 832 -48 832 -64
WIRE 928 -48 832 -48
WIRE 944 -48 928 -48
WIRE 832 -32 832 -48
WIRE 416 32 416 16
WIRE 608 32 416 32
WIRE 640 32 608 32
WIRE 752 48 704 48
WIRE 784 48 752 48
WIRE 0 64 -112 64
WIRE 112 64 80 64
WIRE 240 64 192 64
WIRE 320 64 240 64
WIRE 624 64 320 64
WIRE 640 64 624 64
WIRE 512 96 512 16
WIRE 576 96 512 96
WIRE 592 96 576 96
WIRE 832 128 832 64
WIRE -224 144 -224 64
WIRE -112 144 -112 64
WIRE 64 144 64 112
WIRE 240 144 240 64
WIRE 320 160 320 64
WIRE 416 160 416 32
WIRE 512 160 512 96
WIRE 624 192 624 64
WIRE 640 192 624 192
WIRE 752 208 704 208
WIRE 784 208 752 208
WIRE 592 224 592 96
WIRE 640 224 592 224
WIRE -224 288 -224 224
WIRE -112 288 -112 224
WIRE 16 288 16 112
WIRE 64 288 64 224
WIRE 240 288 240 208
WIRE 320 288 320 240
WIRE 416 288 416 240
WIRE 512 288 512 240
WIRE 832 288 832 224
FLAG -112 288 0
FLAG 240 288 0
FLAG 672 16 VBat
FLAG 672 176 VBat
FLAG 672 240 0
FLAG 672 80 0
FLAG -224 288 0
FLAG -224 64 VBat
FLAG 320 288 0
FLAG 416 288 0
FLAG 512 288 0
FLAG 416 -64 VBat
FLAG 512 -64 VBat
FLAG 752 48 CA
FLAG 752 208 CB
FLAG 64 288 0
FLAG 16 288 0
FLAG 832 288 0
FLAG 832 -144 VBat
FLAG 928 -48 Power
FLAG 608 32 THA
FLAG 576 96 THB
FLAG 240 64 C
SYMBOL voltage -112 128 R0
WINDOW 3 39 96 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName VN
SYMATTR Value 12
SYMBOL res 208 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 120k
SYMBOL cap 224 144 R0
SYMATTR InstName C1
SYMATTR Value 22µ
SYMBOL Comparators\\LT1017 672 48 R0
SYMATTR InstName U1
SYMBOL Comparators\\LT1017 672 208 R0
SYMATTR InstName U2
SYMBOL voltage -224 128 R0
SYMATTR InstName VB
SYMATTR Value 4
SYMBOL res 400 -80 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res 304 144 R0
SYMATTR InstName R3
SYMATTR Value 56k
SYMBOL res 400 144 R0
SYMATTR InstName R4
SYMATTR Value 330k
SYMBOL res 496 -80 R0
SYMATTR InstName R5
SYMATTR Value 330k
SYMBOL res 496 144 R0
SYMATTR InstName R6
SYMATTR Value 820k
SYMBOL sw -16 64 R270
SYMATTR InstName S1
SYMATTR Value Stecker
SYMBOL voltage 64 128 R0
WINDOW 3 -72 211 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 1 0 100n 100n 5)
SYMBOL nmos 784 128 R0
SYMATTR InstName M1
SYMATTR Value BSS123
SYMBOL nmos 784 -32 R0
SYMATTR InstName M2
SYMATTR Value BSS123
SYMBOL res 816 -160 R0
SYMATTR InstName R7
SYMATTR Value 10k
TEXT -242 336 Left 2 !.tran 10 uic
TEXT -8 368 Left 2 !.model Stecker SW(Ron=1m Roff=1Meg Vt=0.5 Vh=0)