Version 4
SHEET 1 2748 1316
WIRE -480 -880 -592 -880
WIRE 32 -880 -480 -880
WIRE 960 -880 32 -880
WIRE -592 -864 -592 -880
WIRE 224 -816 112 -816
WIRE 576 -816 224 -816
WIRE 672 -816 576 -816
WIRE 1024 -816 672 -816
WIRE 1040 -816 1024 -816
WIRE 1040 -784 1040 -816
WIRE -592 -768 -592 -784
WIRE 112 -768 112 -816
WIRE 224 -768 224 -816
WIRE 576 -768 576 -816
WIRE 960 -720 960 -880
WIRE -480 -704 -480 -880
WIRE 928 -704 896 -704
WIRE 32 -688 32 -880
WIRE 1040 -688 1040 -720
WIRE 1040 -688 992 -688
WIRE 112 -672 112 -688
WIRE 112 -672 64 -672
WIRE 144 -672 112 -672
WIRE 576 -672 576 -688
WIRE 800 -672 576 -672
WIRE 928 -672 800 -672
WIRE -384 -656 -416 -656
WIRE -256 -656 -304 -656
WIRE 0 -656 -256 -656
WIRE 800 -656 800 -672
WIRE 224 -640 224 -688
WIRE 224 -640 64 -640
WIRE 432 -640 224 -640
WIRE 960 -640 960 -656
WIRE 224 -624 224 -640
WIRE 32 -608 32 -624
WIRE 432 -608 432 -640
WIRE 576 -608 576 -672
WIRE 672 -608 672 -816
WIRE 800 -576 800 -592
WIRE 224 -544 224 -560
WIRE -256 -480 -256 -656
WIRE -128 -480 -256 -480
WIRE 0 -480 -48 -480
WIRE 112 -480 112 -672
WIRE 112 -480 64 -480
WIRE 304 -480 112 -480
WIRE 112 -464 112 -480
WIRE 112 -368 112 -384
WIRE -480 -288 -480 -608
WIRE 160 -288 -480 -288
WIRE 304 -288 160 -288
WIRE 816 -288 752 -288
WIRE 896 -288 896 -704
WIRE 896 -288 816 -288
WIRE 896 -256 896 -288
WIRE 784 -176 752 -176
WIRE 208 -160 176 -160
WIRE 304 -160 208 -160
WIRE 208 -144 208 -160
WIRE 208 -48 208 -80
WIRE 576 -48 576 -112
WIRE 576 -48 208 -48
WIRE 896 -48 896 -176
WIRE 896 -48 576 -48
WIRE 576 -32 576 -48
FLAG 576 -32 0
FLAG 960 -640 0
FLAG -592 -768 0
FLAG 112 -368 0
FLAG 800 -576 0
FLAG 32 -608 0
FLAG 1024 -816 REF
FLAG 784 -176 TEMP
FLAG 160 -288 HEATER+
FLAG 816 -288 IZSET
FLAG 224 -544 0
FLAG 176 -160 DIODE
FLAG 144 -672 DIV
FLAG -592 -880 IN
SYMBOL res 560 -784 R0
SYMATTR InstName R2
SYMATTR Value 70k
SYMBOL res 880 -272 R0
SYMATTR InstName R1
SYMATTR Value 118
SYMBOL res 208 -784 R0
SYMATTR InstName R3
SYMATTR Value 61.9k
SYMBOL cap 784 -656 R0
SYMATTR InstName C4
SYMATTR Value 10n
SYMBOL res 96 -784 R0
SYMATTR InstName R4
SYMATTR Value 13k
SYMBOL res 96 -480 R0
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res -32 -496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 100k
SYMBOL cap 64 -464 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 0.047µ
SYMBOL cap 208 -624 R0
WINDOW 0 38 26 Left 2
SYMATTR InstName C3
SYMATTR Value 0.1µ
SYMBOL diode 192 -144 R0
WINDOW 0 37 31 Left 2
WINDOW 3 27 64 Left 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL Opamps\\LT1013 32 -720 M0
WINDOW 3 27 27 Left 2
WINDOW 0 33 2 Left 2
SYMATTR InstName U3
SYMBOL npn -416 -704 M0
WINDOW 0 23 -9 Left 2
WINDOW 3 -32 113 Left 2
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL res -288 -672 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 1k
SYMBOL Opamps\\LT1013 960 -752 R0
WINDOW 3 30 89 Left 2
WINDOW 0 22 39 Left 2
SYMATTR InstName U2
SYMBOL ADR1000 528 -448 R0
SYMATTR InstName U4
SYMBOL diode 1024 -720 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL voltage -592 -880 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 30
TEXT -456 -88 Left 2 !.tran 500m startup