Version 4 SHEET 1 1156 784 WIRE -272 -48 -368 -48 WIRE -208 -48 -272 -48 WIRE -64 -48 -208 -48 WIRE -32 -48 -64 -48 WIRE 80 -48 48 -48 WIRE 352 -48 208 -48 WIRE 544 -48 352 -48 WIRE -368 -32 -368 -48 WIRE 352 -32 352 -48 WIRE 544 -32 544 -48 WIRE 80 0 80 -48 WIRE 208 0 208 -48 WIRE -208 48 -208 -48 WIRE -368 64 -368 48 WIRE -64 80 -64 -48 WIRE -16 80 -64 80 WIRE 352 80 352 48 WIRE 352 80 304 80 WIRE 416 80 352 80 WIRE 544 80 544 32 WIRE 544 80 496 80 WIRE 544 96 544 80 WIRE -208 160 -208 128 WIRE -16 160 -208 160 WIRE 672 160 304 160 WIRE -208 176 -208 160 WIRE 672 176 672 160 WIRE -16 240 -112 240 WIRE 496 240 304 240 WIRE -112 256 -112 240 WIRE 496 256 496 240 WIRE -208 272 -208 256 WIRE 672 288 672 240 WIRE -16 320 -48 320 WIRE 336 320 304 320 WIRE 448 320 416 320 WIRE -112 352 -112 336 WIRE 496 368 496 320 WIRE -48 432 -48 320 WIRE 48 432 48 400 WIRE 48 432 -48 432 WIRE 144 432 144 400 WIRE 240 432 240 400 WIRE 48 448 48 432 WIRE 48 528 48 512 WIRE 240 528 240 512 WIRE -272 576 -272 -48 WIRE 448 576 448 320 WIRE 448 576 -272 576 FLAG 144 432 0 FLAG 240 528 0 FLAG 48 528 0 FLAG 544 96 0 FLAG 544 -48 OUT FLAG -208 272 0 FLAG -368 64 0 FLAG -368 -48 IN FLAG 496 368 0 FLAG -112 352 0 FLAG 672 288 0 SYMBOL res 224 416 R0 SYMATTR InstName R1 SYMATTR Value 24.9K SYMBOL cap 32 448 R0 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL res 336 -48 R0 SYMATTR InstName R2 SYMATTR Value 787K SYMBOL res 512 64 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 31.6K SYMBOL cap 528 -32 R0 SYMATTR InstName C2 SYMATTR Value 2.2µ SYMBOL res 432 304 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 100K SYMBOL voltage -368 -48 R0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL res -224 32 R0 SYMATTR InstName R5 SYMATTR Value 402K SYMBOL res -224 160 R0 SYMATTR InstName R6 SYMATTR Value 102K SYMBOL ind2 -48 -32 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 6.8µ SYMATTR Type ind SYMATTR SpiceLine Rser=160m SYMBOL LED 656 176 R0 WINDOW 123 24 92 Left 2 SYMATTR Value2 N=10 SYMATTR InstName D1 SYMATTR Value LXHL-BW02 SYMATTR Description Diode SYMATTR Type diode SYMBOL LED 480 256 R0 WINDOW 123 24 92 Left 2 SYMATTR Value2 N=10 SYMATTR InstName D2 SYMATTR Value LXHL-BW02 SYMATTR Description Diode SYMATTR Type diode SYMBOL LT3909 144 192 R0 SYMATTR InstName U1 SYMBOL voltage -112 240 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 3.3 TEXT -176 528 Left 2 !.tran 1m startup TEXT 264 520 Left 2 ;40mA each