Version 4
SHEET 1 880 680
WIRE -256 224 -256 96
WIRE -256 448 -256 304
WIRE -224 96 -256 96
WIRE -224 448 -256 448
WIRE -160 96 -224 96
WIRE -160 128 -160 96
WIRE -160 240 -160 208
WIRE -160 288 -160 240
WIRE -160 448 -224 448
WIRE -160 448 -160 384
WIRE -144 96 -160 96
WIRE -144 448 -160 448
WIRE -96 240 -160 240
WIRE -48 96 -64 96
WIRE -48 160 -48 96
WIRE -48 448 -64 448
WIRE -48 448 -48 256
WIRE -16 96 -48 96
WIRE -16 192 -16 96
WIRE -16 336 -96 336
WIRE -16 336 -16 256
WIRE 0 96 -16 96
WIRE 80 96 64 96
WIRE 80 160 80 96
WIRE 80 336 -16 336
WIRE 80 336 80 288
WIRE 80 352 80 336
WIRE 80 448 -48 448
WIRE 80 448 80 432
WIRE 128 96 80 96
WIRE 128 336 128 96
WIRE 128 448 128 400
WIRE 176 96 128 96
WIRE 176 224 176 96
WIRE 176 448 176 304
WIRE 192 96 176 96
FLAG 192 96 out
FLAG -224 96 Ub
FLAG 176 448 0
FLAG -224 448 0
FLAG 128 448 0
SYMBOL ind -160 112 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L1
SYMATTR Value 330µ
SYMATTR SpiceLine Cpar=100p
SYMBOL diode 0 80 M90
WINDOW 0 39 34 VTop 0
WINDOW 3 -7 56 VBottom 0
SYMATTR InstName D1
SYMATTR Value UPSC600
SYMBOL Misc\\battery -256 208 M0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -158 300 Left 0
SYMATTR Value PULSE(0 {Ub} 0 10m)
SYMATTR InstName V1
SYMBOL Misc\\EuropeanResistor -48 464 M270
WINDOW 0 2 58 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 1
SYMBOL Misc\\EuropeanResistor -176 112 R0
WINDOW 0 17 41 VRight 0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor 160 208 R0
WINDOW 3 -356 -211 Left 0
SYMATTR Value R=10k; R=if(time < 30m,1G,if(time < 40m, 20k, 8k)) ;
SYMATTR InstName Rload
SYMBOL Misc\\EuropeanResistor 96 336 M0
WINDOW 0 17 68 VLeft 0
WINDOW 3 34 37 Left 0
SYMATTR InstName R6
SYMATTR Value 12k
SYMBOL nmos -96 160 R0
WINDOW 0 31 -9 Right 0
WINDOW 3 -33 105 Left 0
SYMATTR InstName M2
SYMATTR Value IRF820
SYMBOL npn -96 288 M0
WINDOW 0 50 25 Left 0
WINDOW 3 22 51 Left 0
SYMATTR InstName Q1
SYMATTR Value FZT853
SYMBOL Misc\\EuropeanPolcap 112 336 R0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMATTR SpiceLine Rser=3
SYMBOL Misc\\cell 80 224 M0
WINDOW 0 11 7 Invisible 0
WINDOW 3 1 8 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 -36 72 Left 0
SYMATTR InstName V2
SYMATTR Value 210
SYMATTR SpiceLine Rser=1k
SYMBOL cap -32 192 R0
WINDOW 0 21 13 Left 0
WINDOW 3 22 51 Left 0
SYMATTR InstName C2
SYMATTR Value 27p
SYMBOL diode 64 160 R0
WINDOW 0 -17 3 Left 0
WINDOW 3 24 72 Invisible 0
SYMATTR InstName D2
TEXT -162 -48 Left 0 !.tran 0 1 0 100n
TEXT -160 -112 Left 0 !;.step param Ub list 60 48 24 12\n.param Ub 16
RECTANGLE Normal 112 144 32 320 2