Version 4
SHEET 1 2228 680
WIRE 368 64 304 64
WIRE 624 64 368 64
WIRE 304 96 304 64
WIRE 624 128 624 64
WIRE -48 144 -224 144
WIRE 0 144 -48 144
WIRE 144 144 64 144
WIRE 368 144 240 144
WIRE 448 144 368 144
WIRE 496 144 448 144
WIRE 624 192 624 128
WIRE -224 208 -224 144
WIRE 192 224 192 208
WIRE 304 224 304 176
WIRE 304 224 192 224
WIRE 192 240 192 224
WIRE 304 240 304 224
WIRE 496 240 496 208
WIRE -224 320 -224 288
WIRE 192 320 192 304
WIRE 304 320 192 320
WIRE 576 320 576 240
WIRE 576 320 304 320
WIRE 624 320 624 272
WIRE 624 320 576 320
WIRE 688 320 624 320
WIRE 576 336 576 320
WIRE 688 336 688 320
WIRE 192 352 192 320
WIRE 304 352 304 320
WIRE 624 352 624 320
WIRE 496 400 496 240
WIRE 192 432 192 416
WIRE 304 432 192 432
WIRE 624 448 624 432
WIRE 192 496 192 432
WIRE 304 528 304 432
WIRE -48 560 -48 144
WIRE 16 560 -48 560
WIRE 144 560 80 560
WIRE 368 560 240 560
WIRE 448 560 368 560
WIRE 496 560 496 464
WIRE 496 560 448 560
WIRE 304 640 304 608
WIRE 368 640 304 640
WIRE 624 640 624 448
WIRE 624 640 368 640
FLAG 688 336 0
FLAG -224 320 0
FLAG 624 128 V1+
FLAG 624 448 V2-
FLAG 576 336 0
FLAG 448 144 Vout+
FLAG 448 560 Vout-
FLAG 496 240 Vout
SYMBOL voltage 624 176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage 624 336 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage -224 192 R0
WINDOW 0 -68 55 Left 2
WINDOW 3 -93 107 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(-3 3 0.5 0.01 0.01 0.5 1 2)
SYMBOL npn 240 208 M270
SYMATTR InstName Q7
SYMATTR Value BC107B
SYMBOL polcap 176 240 R0
WINDOW 3 24 56 Left 2
SYMATTR Value 47µ
SYMATTR InstName C1
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=3.10529 Rser=0.028 Lser=0 mfg="KEMET" pn="A700V476M006ATE028" type="Al electrolytic"
SYMBOL res 288 224 R0
SYMATTR InstName R11
SYMATTR Value 10k
SYMBOL res 288 80 R0
SYMATTR InstName R12
SYMATTR Value 22k
SYMBOL res 352 48 R0
SYMATTR InstName R13
SYMATTR Value 1k
SYMBOL res 480 256 R270
WINDOW 0 -24 32 VTop 2
WINDOW 3 0 74 VBottom 2
SYMATTR InstName RL
SYMATTR Value 40k
SYMBOL res 352 544 R0
SYMATTR InstName R15
SYMATTR Value 1k
SYMBOL res 288 512 R0
SYMATTR InstName R16
SYMATTR Value 22k
SYMBOL res 288 336 R0
SYMATTR InstName R17
SYMATTR Value 10k
SYMBOL pnp 240 496 R90
SYMATTR InstName Q8
SYMATTR Value 2N4258
SYMBOL polcap 176 352 R0
WINDOW 3 24 56 Left 2
SYMATTR Value 47µ
SYMATTR InstName C2
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=10 Irms=3.10529 Rser=0.028 Lser=0 mfg="KEMET" pn="A700V476M010ATE028" type="Al electrolytic"
SYMBOL schottky 16 576 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D4
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 64 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 480 144 R0
WINDOW 3 40 22 Left 2
SYMATTR InstName D5
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 480 400 R0
WINDOW 3 40 22 Left 2
SYMATTR InstName D1
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
TEXT -248 360 Left 2 !.tran 2.5