Version 4
SHEET 1 964 680
WIRE 48 96 -176 96
WIRE 96 96 48 96
WIRE 192 96 96 96
WIRE -176 160 -176 96
WIRE 96 208 96 176
WIRE 192 272 192 176
WIRE 224 272 192 272
WIRE 384 272 288 272
WIRE 624 272 384 272
WIRE 384 288 384 272
WIRE 96 320 96 288
WIRE 112 320 96 320
WIRE 128 320 112 320
WIRE 624 336 624 272
WIRE -176 368 -176 240
WIRE 192 368 -176 368
WIRE 384 368 384 352
WIRE 384 368 192 368
WIRE 192 400 192 368
WIRE 384 400 384 368
WIRE 512 400 384 400
WIRE 512 416 512 400
WIRE 624 416 512 416
FLAG 192 400 0
FLAG 48 96 Vcc+
FLAG 112 320 Ube1
FLAG 384 272 Vsek+
SYMBOL ind2 80 80 R0
WINDOW 3 -59 50 Left 2
SYMATTR Value 9.95m
SYMATTR InstName L1
SYMATTR Type ind
SYMATTR SpiceLine Rser=0.6
SYMBOL ind2 176 192 M180
WINDOW 3 36 40 Left 2
WINDOW 0 36 80 Left 2
SYMATTR Value 9.95m
SYMATTR InstName L2
SYMATTR Type ind
SYMATTR SpiceLine Rser=0.6
SYMBOL res 80 192 R0
SYMATTR InstName R1
SYMATTR Value 500
SYMBOL voltage -176 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=50
SYMATTR InstName V1
SYMATTR Value 3
SYMBOL npn 128 272 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL schottky 224 288 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMATTR Value BAT46WJ
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 608 320 R0
SYMATTR InstName RL
SYMATTR Value {RL}
SYMBOL polcap 368 288 R0
WINDOW 3 24 56 Left 2
SYMATTR Value 4.7µ
SYMATTR InstName C1
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=63 Irms=800m Rser=0.081 Lser=0 mfg="Nichicon" pn="UPR1J471MRH" type="Al electrolytic"
TEXT 80 64 Left 2 !K1 L1 L2 0.999
TEXT -208 392 Left 2 !.tran 0 100m 0 startup
TEXT 696 360 Left 2 !.step param RL 1000 100 -100