Version 4 SHEET 1 928 680 WIRE -176 -80 -256 -80 WIRE -80 -80 -176 -80 WIRE 64 -80 -80 -80 WIRE 336 -80 64 -80 WIRE 544 -80 416 -80 WIRE 624 -80 544 -80 WIRE 736 -80 624 -80 WIRE -80 -48 -80 -80 WIRE 736 -48 736 -80 WIRE 624 0 624 -80 WIRE 736 0 736 -48 WIRE 64 16 64 -80 WIRE -80 64 -80 32 WIRE 0 64 -80 64 WIRE 736 128 736 64 WIRE 64 144 64 112 WIRE 144 144 64 144 WIRE 384 144 224 144 WIRE -256 160 -256 -80 WIRE 624 160 624 64 WIRE 736 160 736 128 WIRE 736 160 624 160 WIRE -80 176 -80 64 WIRE 432 208 208 208 WIRE 544 208 544 -80 WIRE 544 208 496 208 WIRE 384 272 384 144 WIRE 384 272 256 272 WIRE 448 272 384 272 WIRE 736 288 736 160 WIRE 256 304 256 272 WIRE -80 336 -80 256 WIRE 384 368 384 272 WIRE 544 368 544 208 WIRE 208 416 208 208 WIRE 256 416 256 384 WIRE 256 416 208 416 WIRE 320 416 256 416 WIRE 448 416 448 272 WIRE 480 416 448 416 WIRE -256 512 -256 240 WIRE -80 512 -80 416 WIRE -80 512 -256 512 WIRE 384 512 384 464 WIRE 384 512 -80 512 WIRE 544 512 544 464 WIRE 544 512 384 512 WIRE 736 512 736 352 WIRE 736 512 544 512 WIRE -256 544 -256 512 FLAG -256 544 0 FLAG 736 128 DK FLAG 736 -48 DA FLAG -176 -80 BAT SYMBOL res 240 128 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL res 240 288 R0 SYMATTR InstName R2 SYMATTR Value 100k SYMBOL cap 496 192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 22p SYMBOL ind 320 -64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 WINDOW 39 -49 59 VTop 2 SYMATTR InstName L1 SYMATTR Value 470u SYMATTR SpiceLine Rser=2 SYMBOL polcap 608 0 R0 WINDOW 39 24 85 Left 2 SYMATTR InstName C2 SYMATTR Value 10u SYMATTR SpiceLine Rser=1 SYMBOL LED 720 0 R0 SYMATTR InstName D2 SYMATTR Value LED SYMBOL pnp 0 112 M180 SYMATTR InstName Q1 SYMATTR Value 2N3906 SYMBOL npn 320 368 R0 SYMATTR InstName Q2 SYMATTR Value 2N3904 SYMBOL res -96 -64 R0 SYMATTR InstName RCdS SYMATTR Value 25k SYMBOL res -96 160 R0 SYMATTR InstName RVR1 SYMATTR Value 20k ; max. 50k SYMBOL res -96 320 R0 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL voltage -256 144 R0 SYMATTR InstName V1 SYMATTR Value 1.5 SYMBOL npn 480 368 R0 SYMATTR InstName Q3 SYMATTR Value 2N3904 SYMBOL diode 720 288 R0 SYMATTR InstName D1 SYMATTR Value 1N4148 TEXT -272 600 Left 2 !.model LED D(Is=1e-20 N=2 Rs=2) TEXT -250 -188 Left 2 !.tran 0 10m 0 startup TEXT -248 -232 Left 2 ;https://www.instructables.com/id/Colour-Changing-Night-Joule-Thief/ TEXT 64 -144 Left 2 ;Mit Sättigung: 470u -> flux=470u*(Imax/0.6)*tanh(x*0.6/Imax)