Version 4
SHEET 1 892 704
WIRE -224 0 -368 0
WIRE 64 0 -224 0
WIRE 128 0 64 0
WIRE 240 0 128 0
WIRE 736 0 240 0
WIRE -224 48 -224 0
WIRE 736 64 736 0
WIRE 592 96 496 96
WIRE -368 112 -368 0
WIRE 240 112 240 0
WIRE 496 112 496 96
WIRE -224 144 -224 128
WIRE 64 208 64 0
WIRE 592 208 592 96
WIRE 560 224 464 224
WIRE -224 240 -224 224
WIRE -224 240 -480 240
WIRE 704 240 624 240
WIRE 736 240 736 128
WIRE 736 240 704 240
WIRE 240 256 240 192
WIRE 352 256 240 256
WIRE 560 256 352 256
WIRE -368 272 -368 192
WIRE -368 272 -480 272
WIRE -368 288 -368 272
WIRE 240 288 240 256
WIRE 464 320 464 224
WIRE 560 320 464 320
WIRE 704 320 704 240
WIRE 704 320 624 320
WIRE -224 336 -224 240
WIRE -224 336 -304 336
WIRE 64 336 64 272
WIRE 128 336 64 336
WIRE 176 336 128 336
WIRE 464 352 464 320
WIRE -224 384 -224 336
WIRE -128 384 -224 384
WIRE -224 432 -224 384
WIRE -128 432 -128 384
WIRE 64 464 64 336
WIRE 464 464 464 432
WIRE 464 464 64 464
WIRE 64 512 64 464
WIRE -224 560 -224 512
WIRE -128 560 -128 512
WIRE -128 560 -224 560
WIRE -368 624 -368 384
WIRE -224 624 -224 560
WIRE -224 624 -368 624
WIRE 64 624 64 592
WIRE 64 624 -224 624
WIRE 208 624 64 624
WIRE 240 624 240 384
WIRE 240 624 208 624
WIRE 384 624 240 624
WIRE 208 640 208 624
FLAG 208 640 0
FLAG 592 272 0
FLAG 496 192 0
FLAG 128 0 ZENER+
FLAG 128 336 BASE
FLAG 352 320 0
SYMBOL Opamps\\LT1013 592 176 R0
SYMATTR InstName U1
SYMBOL zener 80 272 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -139 0 Left 2
SYMATTR InstName D1
SYMATTR Value BZX84C6V2L
SYMBOL npn 176 288 R0
WINDOW 3 56 60 Left 2
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL res 48 496 R0
WINDOW 3 36 87 Left 2
SYMATTR Value 100
SYMATTR InstName R1
SYMBOL res 224 96 R0
SYMATTR InstName R2
SYMATTR Value 200k
SYMBOL diode 752 128 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL voltage 496 96 R0
WINDOW 0 40 36 Left 2
WINDOW 3 40 68 Left 2
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL res 448 336 R0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL cap 624 304 R90
WINDOW 0 88 31 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL cap 336 256 R0
WINDOW 0 38 16 Left 2
WINDOW 3 40 45 Left 2
SYMATTR InstName C2
SYMATTR Value 2n2
SYMBOL npn -304 288 M0
SYMATTR InstName Q2
SYMATTR Value 2N2222
SYMBOL res -384 96 R0
SYMATTR InstName R3
SYMATTR Value 220k
SYMBOL res -240 32 R0
SYMATTR InstName R5a
SYMATTR Value 100k
SYMBOL res -240 416 R0
SYMATTR InstName R5d
SYMATTR Value 10k
SYMBOL res -144 416 R0
SYMATTR InstName R5b
SYMATTR Value 100k
SYMBOL res -240 128 R0
WINDOW 3 41 65 Left 2
SYMATTR InstName R5c
SYMATTR Value 10k
TEXT 448 600 Left 2 !;op
TEXT 448 656 Left 2 !.tran 0 200m 10m startup
TEXT 88 208 Left 2 ;80'C/W
TEXT 448 536 Left 2 !.step TEMP 40 50 1
TEXT -152 296 Left 2 ;LT5400-3
TEXT -376 688 Left 2 ;Q1, Q2, D1 are the LTZ1000. Temperature Control not shown.
RECTANGLE Normal -32 592 -272 32 2