Version 4
SHEET 1 1152 980
WIRE -816 -368 -960 -368
WIRE -144 -368 -816 -368
WIRE 32 -368 -144 -368
WIRE 304 -368 32 -368
WIRE -144 -336 -144 -368
WIRE 784 -320 576 -320
WIRE 576 -256 576 -320
WIRE 32 -208 32 -368
WIRE 0 -192 -32 -192
WIRE 96 -176 64 -176
WIRE 176 -176 96 -176
WIRE 208 -176 176 -176
WIRE 336 -176 208 -176
WIRE 432 -176 416 -176
WIRE 528 -176 496 -176
WIRE -304 -160 -384 -160
WIRE 0 -160 -304 -160
WIRE -816 -144 -816 -368
WIRE 96 -96 96 -176
WIRE 208 -80 208 -176
WIRE -32 48 -32 -192
WIRE 96 48 96 -16
WIRE 96 48 -32 48
WIRE 208 48 208 -16
WIRE 208 48 96 48
WIRE 384 48 208 48
WIRE 576 48 576 -160
WIRE 576 48 464 48
WIRE -816 96 -816 -64
WIRE -816 96 -912 96
WIRE -576 96 -816 96
WIRE -464 96 -576 96
WIRE 496 96 -464 96
WIRE -960 128 -960 -368
WIRE -464 128 -464 96
WIRE 176 128 144 128
WIRE 384 128 240 128
WIRE 496 144 496 96
WIRE -144 160 -144 -256
WIRE -912 224 -912 96
WIRE -880 224 -912 224
WIRE -576 224 -576 96
WIRE -576 224 -624 224
WIRE 144 224 144 128
WIRE 176 224 144 224
WIRE 384 224 384 128
WIRE 384 224 256 224
WIRE -304 240 -304 -160
WIRE -576 256 -576 224
WIRE -464 256 -464 208
WIRE -384 256 -384 -160
WIRE -384 256 -464 256
WIRE 304 288 304 -368
WIRE 384 304 384 224
WIRE 384 304 336 304
WIRE 640 304 384 304
WIRE 784 304 784 -320
WIRE 784 304 720 304
WIRE -464 320 -464 256
WIRE -48 320 -256 320
WIRE 144 320 144 224
WIRE 144 320 -48 320
WIRE 272 320 144 320
WIRE -48 336 -48 320
WIRE 496 336 496 224
WIRE 496 336 336 336
WIRE -912 352 -912 224
WIRE -880 352 -912 352
WIRE -576 352 -576 320
WIRE -576 352 -624 352
WIRE 784 352 784 304
WIRE -144 384 -144 224
WIRE -576 416 -576 352
WIRE -576 416 -624 416
WIRE -48 432 -48 416
WIRE -48 432 -80 432
WIRE 496 448 496 336
WIRE 576 448 576 48
WIRE 784 464 784 432
WIRE -48 480 -48 432
WIRE -960 592 -960 208
WIRE -576 592 -576 416
WIRE -576 592 -960 592
WIRE -464 592 -464 400
WIRE -464 592 -576 592
WIRE -304 592 -304 336
WIRE -304 592 -464 592
WIRE -144 592 -144 480
WIRE -144 592 -304 592
WIRE -48 592 -48 560
WIRE -48 592 -144 592
WIRE 32 592 32 -144
WIRE 32 592 -48 592
WIRE 304 592 304 352
WIRE 304 592 32 592
WIRE 496 592 496 528
WIRE 496 592 304 592
WIRE 576 592 576 528
WIRE 576 592 496 592
WIRE 784 592 784 544
WIRE 784 592 576 592
WIRE -960 608 -960 592
FLAG -960 608 0
FLAG 784 304 Vbatt
FLAG 176 -176 Vcctrl
FLAG -304 -160 Vcurref
SYMBOL res 560 432 R0
SYMATTR InstName R1
SYMATTR Value 1
SYMBOL Opamps\\LM358 32 -176 R0
SYMATTR InstName U1
SYMBOL res -832 -160 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res -480 304 R0
SYMATTR InstName R3
SYMATTR Value 1913
SYMBOL res -480 112 R0
SYMATTR InstName R4
SYMATTR Value 22k
SYMBOL Misc\\battery -960 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage 784 448 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -190 114 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 1.3 0 10 10 10 40)
SYMBOL Opamps\\LM358 304 320 M0
SYMATTR InstName U3
SYMBOL res 480 128 R0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res 480 432 R0
SYMATTR InstName R6
SYMATTR Value 6.67k
SYMBOL nmos 528 -256 R0
SYMATTR InstName M1
SYMATTR Value FDS5680
SYMBOL nmos -256 240 M0
SYMATTR InstName M2
SYMATTR Value 2N7002
SYMBOL npn -80 384 M0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL res -64 464 R0
SYMATTR InstName R7
SYMATTR Value 6.8k
SYMBOL res -64 320 R0
SYMATTR InstName R8
SYMATTR Value 6.8k
SYMBOL res -160 -352 R0
SYMATTR InstName R9
SYMATTR Value 2.2k
SYMBOL LED -160 160 R0
SYMATTR InstName D1
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 432 -192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 10
SYMBOL FerriteBead 464 -176 R90
WINDOW 0 -16 0 VBottom 2
SYMATTR InstName L1
SYMATTR Value 288n
SYMATTR SpiceLine Ipk=7 Rser=0.0033 Rpar=152 Cpar=78f mfg="Wurth Elektronik" pn="742 792 241 01"
SYMBOL res 768 336 R0
SYMATTR InstName R11
SYMATTR Value 0.5
SYMBOL res 80 -112 R0
SYMATTR InstName R12
SYMATTR Value 470k
SYMBOL res 480 32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 1k
SYMBOL res 272 208 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R14
SYMATTR Value 470k
SYMBOL res 736 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R15
SYMATTR Value 1k
SYMBOL cap 240 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL cap 192 -80 R0
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL References\\LT1431 -752 320 R0
SYMATTR InstName U4
SYMBOL polcap -592 256 R0
SYMATTR InstName C3
SYMATTR Value 27u
SYMATTR SpiceLine Rser=0.05
TEXT -992 568 Left 2 !.tran 100