Version 4
SHEET 1 1552 756
WIRE 464 0 144 0
WIRE 576 0 464 0
WIRE 704 0 640 0
WIRE 464 32 464 0
WIRE 144 48 144 0
WIRE -96 112 -176 112
WIRE -80 112 -96 112
WIRE 0 112 -80 112
WIRE 464 112 464 96
WIRE 464 112 288 112
WIRE 576 112 464 112
WIRE 704 112 704 0
WIRE 704 112 656 112
WIRE 768 112 704 112
WIRE 880 112 768 112
WIRE 896 112 880 112
WIRE 992 112 976 112
WIRE 1200 112 992 112
WIRE -176 144 -176 112
WIRE 464 144 464 112
WIRE 704 144 704 112
WIRE 880 144 880 112
WIRE 992 144 992 112
WIRE -80 176 -80 112
WIRE 0 176 -80 176
WIRE 352 176 288 176
WIRE 704 224 704 208
WIRE 352 240 288 240
WIRE 512 240 352 240
WIRE 992 240 992 224
WIRE 1024 240 992 240
WIRE 1152 256 1088 256
WIRE 768 272 768 112
WIRE 880 272 880 224
WIRE 1024 272 880 272
WIRE 512 288 512 240
WIRE 880 304 880 272
WIRE 144 320 144 304
WIRE 624 336 576 336
WIRE 768 336 704 336
WIRE 1152 352 1152 256
WIRE 1152 352 944 352
WIRE 1200 352 1200 112
WIRE 624 368 624 336
WIRE 368 480 272 480
WIRE 880 480 880 400
WIRE 880 480 368 480
WIRE 1200 480 1200 416
WIRE 1200 480 880 480
WIRE 368 528 368 480
WIRE 672 528 592 528
WIRE 960 528 672 528
WIRE 368 624 368 608
FLAG -176 224 0
FLAG 144 320 0
FLAG 464 208 0
FLAG 352 384 0
FLAG 368 624 0
FLAG 272 480 FB
FLAG 352 176 FB
FLAG 672 592 0
FLAG 960 608 0
FLAG 1200 112 V1
FLAG 592 528 V1
FLAG 1056 224 0
FLAG -96 112 8V
FLAG 1056 288 8V
FLAG 704 224 0
FLAG 512 384 0
FLAG 624 448 0
SYMBOL PowerProducts\\LT1767 144 176 R0
SYMATTR InstName U1
SYMBOL voltage -176 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 8
SYMBOL cap 448 32 R0
WINDOW 3 31 48 Left 2
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL schottky 640 -16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 672 96 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName L1
SYMATTR Value 5µ
SYMBOL schottky 480 208 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -129 16 Left 2
SYMATTR InstName D2
SYMATTR Value MBRS140
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 336 240 R0
SYMATTR InstName C2
SYMATTR Value 3.3n
SYMBOL res 336 288 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL res 352 512 R0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL cap 656 528 R0
SYMATTR InstName C4
SYMATTR Value 1µ
SYMBOL res 944 512 R0
SYMATTR InstName R2
SYMATTR Value 10
SYMBOL res 992 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1
SYMBOL Opamps\\LT1363 1056 320 M180
SYMATTR InstName U2
SYMBOL res 976 128 R0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL res 864 128 R0
SYMATTR InstName R7
SYMATTR Value 2.1k
SYMBOL pnp 944 400 R180
WINDOW 0 54 29 Left 2
WINDOW 3 41 54 Left 2
SYMATTR InstName Q1
SYMATTR Value BC857C
SYMBOL zener 1216 416 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value 1N750
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 688 144 R0
SYMATTR InstName C3
SYMATTR Value 10µ
SYMBOL npn 576 288 M0
SYMATTR InstName Q2
SYMATTR Value BC547C
SYMBOL res 720 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 2k
SYMBOL res 640 464 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R8
SYMATTR Value 47k
SYMBOL cap 752 272 R0
SYMATTR InstName C5
SYMATTR Value 560p
TEXT -210 408 Left 2 !.tran 0 1.5m 0m