Version 4
SHEET 1 920 680
WIRE -320 -192 -512 -192
WIRE -144 -192 -320 -192
WIRE 48 -192 -144 -192
WIRE 80 -192 48 -192
WIRE -512 -160 -512 -192
WIRE -320 -128 -320 -192
WIRE 480 -96 464 -96
WIRE 512 -96 480 -96
WIRE 672 -96 512 -96
WIRE 80 -80 80 -192
WIRE 144 -80 80 -80
WIRE 176 -80 144 -80
WIRE 48 -64 48 -192
WIRE -144 -48 -144 -192
WIRE 512 -48 512 -96
WIRE 480 -32 480 -96
WIRE 480 -32 464 -32
WIRE 672 -32 672 -96
WIRE 736 -32 672 -32
WIRE 832 -32 736 -32
WIRE 736 -16 736 -32
WIRE -320 0 -320 -48
WIRE -224 0 -320 0
WIRE -208 0 -224 0
WIRE 672 0 672 -32
WIRE 144 16 144 -80
WIRE 176 16 144 16
WIRE -320 32 -320 0
WIRE 512 32 512 16
WIRE 512 32 464 32
WIRE -80 48 -144 48
WIRE 48 48 48 0
WIRE 48 48 0 48
WIRE -320 96 -400 96
WIRE 48 96 48 48
WIRE 320 96 320 80
WIRE 320 96 48 96
WIRE 672 96 672 80
WIRE 736 96 736 48
WIRE 736 96 672 96
WIRE 752 96 736 96
WIRE 832 96 752 96
WIRE 48 112 48 96
WIRE 672 112 672 96
WIRE 672 112 48 112
WIRE -320 128 -320 96
WIRE 48 128 48 112
WIRE 96 128 48 128
WIRE 672 128 672 112
WIRE 752 144 752 96
WIRE -80 176 -144 176
WIRE 48 176 48 128
WIRE 48 176 0 176
WIRE -320 224 -320 192
WIRE -224 224 -320 224
WIRE -208 224 -224 224
WIRE 176 240 144 240
WIRE 512 240 464 240
WIRE 672 240 672 208
WIRE 672 240 512 240
WIRE 752 240 752 208
WIRE 752 240 672 240
WIRE 832 240 752 240
WIRE 48 256 48 176
WIRE 512 256 512 240
WIRE -320 272 -320 224
WIRE 144 336 144 240
WIRE 176 336 144 336
WIRE 512 336 512 320
WIRE 512 336 464 336
WIRE 96 432 96 128
WIRE 320 432 320 400
WIRE 320 432 96 432
WIRE -512 448 -512 -80
WIRE -320 448 -320 352
WIRE -320 448 -512 448
WIRE -144 448 -144 272
WIRE -144 448 -320 448
WIRE 48 448 48 320
WIRE 48 448 -144 448
WIRE 144 448 144 336
WIRE 144 448 48 448
WIRE -512 464 -512 448
FLAG -512 464 0
FLAG 832 -32 +Vout
FLAG 832 240 -Vout
FLAG 832 96 0Vout
FLAG -224 0 VD+
FLAG -224 224 VD-
FLAG -400 96 VDM
SYMBOL res 688 96 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R3
SYMATTR Value 30
SYMBOL res 688 224 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL voltage -512 -176 R0
WINDOW 123 0 0 Left 0
WINDOW 39 3 132 Left 0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL diode -336 32 R0
WINDOW 3 45 31 Left 0
SYMATTR InstName D3
SYMATTR Value 1N914
SYMBOL diode -336 128 R0
WINDOW 3 41 31 Left 0
SYMATTR InstName D4
SYMATTR Value 1N914
SYMBOL pnp -208 272 M180
WINDOW 0 61 55 Left 0
WINDOW 3 62 23 Left 0
SYMATTR InstName Q3
SYMBOL npn -208 -48 R0
SYMATTR InstName Q4
SYMBOL res -336 -144 R0
SYMATTR InstName R5
SYMATTR Value 47
SYMATTR SpiceLine pwr=1
SYMBOL res -336 256 R0
SYMATTR InstName R6
SYMATTR Value 47
SYMATTR SpiceLine pwr=1
SYMBOL res 16 32 R90
WINDOW 0 59 58 VBottom 0
WINDOW 3 57 55 VTop 0
SYMATTR InstName R7
SYMATTR Value 0.1
SYMBOL res 16 160 R90
WINDOW 0 63 53 VBottom 0
WINDOW 3 56 51 VTop 0
SYMATTR InstName R8
SYMATTR Value 0.1
SYMBOL PowerProducts\\LT1964-5 320 288 R0
SYMATTR InstName U1
SYMBOL cap 496 256 R0
SYMATTR InstName C1
SYMATTR Value 0.1µ
SYMBOL PowerProducts\\LT1962-5 320 -32 R0
SYMATTR InstName U2
SYMBOL cap 496 -48 R0
SYMATTR InstName C2
SYMATTR Value 0.1µ
SYMBOL cap 32 256 R0
WINDOW 0 -38 9 Left 0
WINDOW 3 -47 59 Left 0
SYMATTR InstName C3
SYMATTR Value 100µ
SYMBOL cap 32 -64 R0
WINDOW 0 -41 4 Left 0
WINDOW 3 -53 58 Left 0
SYMATTR InstName C4
SYMATTR Value 100µ
SYMBOL cap 720 -16 R0
SYMATTR InstName C5
SYMATTR Value 100µ
SYMBOL cap 736 144 R0
SYMATTR InstName C6
SYMATTR Value 100µ
TEXT 144 -208 Left 0 !.op