Version 4
SHEET 1 1340 680
WIRE 336 -208 224 -208
WIRE 368 -208 336 -208
WIRE 464 -208 464 -240
WIRE 464 -208 368 -208
WIRE 832 -208 464 -208
WIRE 832 -192 832 -208
WIRE 224 -160 224 -208
WIRE 336 -160 336 -208
WIRE 576 -144 416 -144
WIRE 672 -144 576 -144
WIRE 768 -144 752 -144
WIRE 576 -128 576 -144
WIRE 464 -96 464 -208
WIRE 768 -96 768 -144
WIRE 832 -96 832 -112
WIRE 832 -96 768 -96
WIRE -16 -80 -16 -96
WIRE 96 -80 96 -96
WIRE 416 -80 416 -144
WIRE 432 -80 416 -80
WIRE 832 -80 832 -96
WIRE 576 -64 496 -64
WIRE 672 -64 576 -64
WIRE 784 -64 752 -64
WIRE 224 -48 224 -80
WIRE 240 -48 224 -48
WIRE 432 -48 320 -48
WIRE 368 -16 368 -208
WIRE -16 16 -16 0
WIRE 96 16 96 0
WIRE 832 80 832 16
WIRE 960 80 832 80
WIRE 336 96 336 -96
WIRE 368 96 368 48
WIRE 368 96 336 96
WIRE 464 96 464 -32
WIRE 464 96 368 96
WIRE -80 112 -128 112
WIRE 368 112 368 96
WIRE 224 128 224 -48
WIRE 464 128 464 96
WIRE 832 128 832 80
WIRE -128 144 -128 112
WIRE -128 240 -128 224
WIRE 224 240 224 208
WIRE 464 240 464 208
WIRE 832 240 832 208
FLAG -128 240 0
FLAG 464 240 0
FLAG 96 -96 -V
FLAG 96 16 0
FLAG -16 16 0
FLAG -16 -96 +V
FLAG 464 -240 +V
FLAG 832 240 0
FLAG 960 80 U-AUS
FLAG 224 240 0
SYMBOL voltage -128 128 R0
WINDOW 3 -482 37 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(1 4 0 20n 20n 100µ 200µ 4)
SYMATTR InstName V1
SYMBOL res 208 -176 R0
SYMATTR InstName R2
SYMATTR Value 10
SYMBOL Opamps\\LT1632 464 -128 R0
SYMATTR InstName U2
SYMBOL res 816 -208 R0
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL res 816 112 R0
SYMATTR InstName R6
SYMATTR Value 3k00
SYMBOL voltage -16 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value +15
SYMBOL voltage 96 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value -15
SYMBOL pmos 784 16 M180
SYMATTR InstName M1
SYMATTR Value IRF7343P
SYMBOL res 656 -128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 768 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 22
SYMBOL cap 560 -128 R0
SYMATTR InstName C1
SYMATTR Value 220p
SYMBOL zener 320 -160 R0
WINDOW 0 -22 -3 Left 2
WINDOW 3 -50 -85 Left 2
SYMATTR InstName D1
SYMATTR Value BZX84C10L
SYMBOL res 448 112 R0
SYMATTR InstName R1
SYMATTR Value 1k2
SYMBOL res 208 112 R0
SYMATTR InstName R4
SYMATTR Value 2k4
SYMBOL cap 352 -16 R0
SYMATTR InstName C2
SYMATTR Value 100n
SYMBOL res 336 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 1k
TEXT -296 304 Left 2 !.tran 0 1000µ 0