Version 4 SHEET 1 1160 680 WIRE -320 -160 -752 -160 WIRE -224 -160 -320 -160 WIRE 80 -160 -224 -160 WIRE 288 -160 176 -160 WIRE 320 -160 288 -160 WIRE 416 -160 400 -160 WIRE 528 -160 416 -160 WIRE 592 -160 528 -160 WIRE 688 -160 592 -160 WIRE -752 -144 -752 -160 WIRE 592 -144 592 -160 WIRE 688 -144 688 -160 WIRE -224 -128 -224 -160 WIRE 160 -96 160 -112 WIRE 592 -48 592 -80 WIRE 688 -48 688 -64 WIRE -752 -32 -752 -64 WIRE -224 -16 -224 -48 WIRE -96 -16 -224 -16 WIRE 32 -16 -96 -16 WIRE -224 0 -224 -16 WIRE -96 0 -96 -16 WIRE 80 0 64 0 WIRE 160 0 160 -16 WIRE 160 0 144 0 WIRE 528 16 528 -160 WIRE 32 48 32 -16 WIRE 160 48 160 0 WIRE 288 48 288 -160 WIRE 416 48 416 -160 WIRE -752 64 -752 48 WIRE -320 64 -320 -160 WIRE -224 80 -224 64 WIRE -96 80 -96 64 WIRE 528 112 528 96 WIRE 528 112 480 112 WIRE 528 128 528 112 WIRE -320 160 -320 144 WIRE -80 160 -320 160 WIRE -320 176 -320 160 WIRE -80 176 -80 160 WIRE -32 176 -80 176 WIRE 528 224 528 208 WIRE -320 288 -320 256 WIRE 128 320 128 304 WIRE 320 320 320 304 WIRE 320 400 320 384 FLAG 592 -48 0 FLAG 688 -48 0 FLAG 528 224 0 FLAG 320 400 0 FLAG 128 320 0 FLAG -224 80 0 FLAG 64 0 0 FLAG -96 80 0 FLAG -320 288 0 FLAG -752 64 0 SYMBOL res 144 -112 R0 SYMATTR InstName R1 SYMATTR Value 10 SYMBOL res 304 -144 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 15m SYMBOL res 512 0 R0 SYMATTR InstName R3 SYMATTR Value 221K SYMBOL res 512 112 R0 SYMATTR InstName R4 SYMATTR Value 4.02K SYMBOL nmos 80 -112 R270 WINDOW 0 57 42 VTop 2 WINDOW 3 -14 72 VLeft 2 SYMATTR InstName Q1 SYMATTR Value IRLR2908 SYMBOL cap 144 -16 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 47n SYMBOL cap 304 320 R0 SYMATTR InstName C2 SYMATTR Value 6.8µ SYMBOL cap 576 -144 R0 SYMATTR InstName C3 SYMATTR Value 300µ SYMBOL voltage -752 -160 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR InstName V1 SYMATTR Value EXP(0 60 5m 10m 10m 150m) SYMBOL res -240 -144 R0 SYMATTR InstName R5 SYMATTR Value 1K SYMBOL zener -240 64 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value 1N5371B SYMBOL res -336 48 R0 SYMATTR InstName R6 SYMATTR Value 604K SYMBOL res -336 160 R0 SYMATTR InstName R7 SYMATTR Value 23K SYMBOL cap -112 0 R0 SYMATTR InstName C4 SYMATTR Value 0.1µ SYMBOL res 672 -160 R0 SYMATTR InstName Rload SYMATTR Value 100 SYMBOL LT4363-1 208 176 R0 SYMATTR InstName U1 SYMBOL voltage -752 -48 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR InstName V2 SYMATTR Value 40 TEXT 496 352 Left 2 !.tran 30 startup