Version 4
SHEET 1 1368 680
WIRE -144 -16 -192 -16
WIRE -16 -16 -64 -16
WIRE 32 -16 -16 -16
WIRE 160 -16 112 -16
WIRE 240 -16 160 -16
WIRE 416 64 368 64
WIRE -16 96 -16 -16
WIRE 0 96 -16 96
WIRE 416 96 416 64
WIRE 448 96 448 48
WIRE 448 96 416 96
WIRE 304 112 64 112
WIRE 352 112 304 112
WIRE 0 128 -16 128
WIRE 432 128 416 128
WIRE 416 160 416 128
WIRE 416 160 368 160
WIRE 432 160 432 128
WIRE 496 160 432 160
WIRE 432 192 432 160
WIRE 576 224 576 160
WIRE 576 224 160 224
WIRE -144 256 -192 256
WIRE -16 256 -16 128
WIRE -16 256 -64 256
WIRE 32 256 -16 256
WIRE 160 256 160 224
WIRE 160 256 112 256
WIRE 240 272 240 -16
WIRE 432 272 240 272
WIRE 512 272 432 272
WIRE 544 272 512 272
FLAG 64 144 0
FLAG -192 -16 vin
FLAG -192 256 0
FLAG 512 272 out+2
FLAG 544 336 0
FLAG -624 -192 0
FLAG -624 -272 vsup
FLAG 64 80 vsup
FLAG -608 96 0
FLAG -608 16 vin
FLAG 448 48 vsup
FLAG -16 256 1
FLAG 160 256 2
FLAG -16 -16 3
FLAG 160 -16 4
SYMBOL res -48 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 25k
SYMBOL res 416 176 R0
SYMATTR InstName R5
SYMATTR Value 330
SYMBOL res 592 144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 330
SYMBOL diode 528 272 R0
SYMATTR InstName D1
SYMATTR Value LV_CRBP.01_25-min
SYMBOL voltage -624 -288 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage -608 0 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 3.3 0 3.3 1 1)
SYMBOL res 128 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 25k
SYMBOL res 128 -32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 25k
SYMBOL res -48 -32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 25k
SYMBOL AutoGenerated\\TL081 32 112 R0
SYMATTR InstName U1
SYMBOL npn 304 64 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
TEXT -656 520 Left 2 !.meas TRAN i_diode AVG I(D1)/V(vin) FROM .3m to .35m
TEXT -656 544 Left 2 !.param tol=0.01
TEXT -656 448 Left 2 !.tran 0 3.3 1p startup
TEXT -656 472 Left 2 !.model LV_CRBP.01_25-min D (BV=7 IS=3.223817631764513e-14 N=3.454960721622244 RS=0.3874073653535945 Tnom=25 mfg=OSRAM_OS)
TEXT -656 568 Left 2 !.function gc(nom,tol) (nom+nom*(gauss(tol/3))
TEXT -656 592 Left 2 !.meas TRAN res1 MAX ABS(V(2,1)/I(R1)) FROM .3m TO .35m
TEXT -656 616 Left 2 !.meas TRAN res2 MAX ABS(V(1)/I(R2)) FROM .3m TO .35m
TEXT -656 640 Left 2 !.meas TRAN res3 MAX ABS(V(4,3)/I(R3)) FROM .3m TO .35m
TEXT -656 664 Left 2 !.meas TRAN res4 MAX ABS(V(3,vin)/I(R4)) FROM .3m TO .35m