Version 4
SHEET 1 1608 680
WIRE 736 -528 208 -528
WIRE 1216 -528 736 -528
WIRE 1376 -528 1216 -528
WIRE 1376 -480 1376 -528
WIRE 1216 -432 1216 -448
WIRE 1312 -432 1216 -432
WIRE 208 -400 208 -528
WIRE 736 -400 736 -448
WIRE 736 -400 608 -400
WIRE 800 -400 736 -400
WIRE 672 -352 576 -352
WIRE 960 -352 864 -352
WIRE 992 -352 960 -352
WIRE 1440 -352 1072 -352
WIRE 368 -336 352 -336
WIRE 656 -304 608 -304
WIRE 864 -304 800 -304
WIRE 1216 -304 1216 -432
WIRE 512 -272 416 -272
WIRE 416 -256 416 -272
WIRE 352 -240 352 -336
WIRE 384 -240 352 -240
WIRE 144 -224 64 -224
WIRE 208 -224 144 -224
WIRE 352 -224 288 -224
WIRE 448 -224 448 -336
WIRE 576 -224 576 -352
WIRE 576 -224 448 -224
WIRE 352 -208 352 -224
WIRE 384 -208 352 -208
WIRE 352 -128 272 -128
WIRE 384 -128 352 -128
WIRE 512 -112 512 -272
WIRE 512 -112 336 -112
WIRE 1216 -112 1216 -240
WIRE 336 -96 336 -112
WIRE 272 -80 272 -128
WIRE 304 -80 272 -80
WIRE 512 -80 512 -112
WIRE 384 -64 384 -128
WIRE 384 -64 368 -64
WIRE 304 -48 176 -48
WIRE 512 -32 512 -80
WIRE 1376 0 1376 -384
WIRE 1440 0 1440 -352
WIRE 1440 0 1376 0
WIRE 1552 0 1520 0
WIRE 1376 64 1376 0
WIRE 176 80 176 -48
WIRE 512 80 512 48
WIRE 512 80 176 80
WIRE 1216 80 1216 -48
WIRE 1232 80 1216 80
WIRE 1552 80 1552 0
WIRE 512 112 512 80
WIRE 1232 112 1232 80
WIRE 1440 112 1232 112
WIRE 1232 144 1232 112
WIRE 1552 160 1552 144
WIRE 656 192 656 -304
WIRE 1168 192 656 192
WIRE 656 240 656 192
WIRE 512 304 512 192
WIRE 512 304 448 304
WIRE 608 304 512 304
WIRE 608 320 608 304
WIRE 656 320 608 320
WIRE 864 320 864 -304
WIRE 864 320 656 320
WIRE 1232 320 1232 240
WIRE 1232 320 864 320
WIRE 1376 320 1376 160
WIRE 1376 320 1232 320
FLAG 208 -320 0
FLAG 64 -144 0
FLAG 448 304 0
FLAG 1552 160 0
FLAG 960 -272 0
FLAG 416 -192 0
FLAG 592 -80 0
FLAG 352 -416 0
FLAG 336 -32 0
FLAG 144 -144 0
SYMBOL voltage 64 -240 R0
WINDOW 3 24 96 Invisible 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 3.3 0 1m 1m 0 0)
SYMBOL voltage 208 -416 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 44 Left 2
SYMATTR InstName V2
SYMATTR Value 310
SYMBOL npn 1312 -480 R0
SYMATTR InstName Q1
SYMATTR Value NPNGerald
SYMBOL npn 1168 144 R0
SYMATTR InstName Q2
SYMATTR Value NPNGerald
SYMBOL pnp 864 -304 R180
SYMATTR InstName Q3
SYMATTR Value PNPGerald
SYMBOL pnp 672 -304 R180
SYMATTR InstName Q4
SYMATTR Value PNPGerald
SYMBOL pnp 1440 160 R180
SYMATTR InstName Q5
SYMATTR Value PNPGerald
SYMBOL res 640 224 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 720 -544 R0
SYMATTR InstName R2
SYMATTR Value 20k
SYMBOL res 128 -240 R0
SYMATTR InstName R3
SYMATTR Value 727
SYMBOL res 944 -368 R0
SYMATTR InstName R4
SYMATTR Value 2k
SYMBOL res 1088 -368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 110k
SYMBOL res 1232 -432 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R6
SYMATTR Value 20k
SYMBOL diode 1200 -304 R0
SYMATTR InstName D1
SYMATTR Value MUR460
SYMBOL diode 1200 -112 R0
SYMATTR InstName D2
SYMATTR Value MUR460
SYMBOL cap 1536 80 R0
SYMATTR InstName C1
SYMATTR Value 50n
SYMBOL res 1536 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 100
SYMBOL res 304 -240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 20k
SYMBOL voltage 496 -80 R270
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 8
SYMBOL res 496 96 R0
SYMATTR InstName R11
SYMATTR Value 1k
SYMBOL Opamps\\UniversalOpamp2 416 -224 R0
SYMATTR InstName U1
SYMBOL res 464 -352 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 40k
SYMBOL res 336 -432 R0
SYMATTR InstName R12
SYMATTR Value 20k
SYMBOL Opamps\\UniversalOpamp2 336 -64 R0
SYMATTR InstName U2
SYMBOL res 336 -224 R0
SYMATTR InstName R10
SYMATTR Value 20k
SYMBOL res 496 -48 R0
SYMATTR InstName R13
SYMATTR Value 25k
TEXT 174 392 Left 2 !.tran 0 10m 0