Version 4
SHEET 1 1372 680
WIRE -16 32 -112 32
WIRE 224 32 -16 32
WIRE 416 32 224 32
WIRE 640 32 416 32
WIRE 816 32 640 32
WIRE 896 32 816 32
WIRE -112 64 -112 32
WIRE -16 64 -16 32
WIRE 816 64 816 32
WIRE 224 112 208 112
WIRE 240 112 224 112
WIRE -16 160 -16 144
WIRE 64 160 -16 160
WIRE 416 160 416 112
WIRE 416 160 384 160
WIRE 464 160 416 160
WIRE 640 160 640 96
WIRE 640 160 544 160
WIRE 672 160 640 160
WIRE 816 160 672 160
WIRE 896 160 896 112
WIRE 640 240 640 160
WIRE -112 256 -112 144
WIRE 128 256 128 208
WIRE 512 256 128 256
WIRE 544 256 512 256
WIRE 128 272 128 256
WIRE 256 320 192 320
WIRE 320 320 320 208
WIRE 320 320 256 320
WIRE 544 320 544 256
WIRE 592 320 544 320
WIRE 320 368 320 320
WIRE 640 368 640 336
WIRE -112 448 -112 336
WIRE -80 448 -112 448
WIRE 128 448 -80 448
WIRE 320 448 128 448
WIRE 640 448 320 448
FLAG 816 64 0
FLAG 672 160 out
FLAG -80 448 in-
FLAG 512 256 gate
FLAG 256 320 basis
SYMBOL voltage -112 48 R0
WINDOW 0 -66 43 Left 2
WINDOW 3 -64 74 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL voltage -16 48 R0
WINDOW 0 -38 9 Left 2
WINDOW 3 -40 95 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 2.5
SYMBOL pnp 64 208 M180
WINDOW 0 10 147 Left 2
WINDOW 3 -8 116 Left 2
SYMATTR InstName Q1
SYMATTR Value BC557C
SYMBOL pnp 384 208 R180
WINDOW 0 32 141 Left 2
WINDOW 3 -5 114 Left 2
SYMATTR InstName Q2
SYMATTR Value BC557C
SYMBOL npn 192 272 M0
WINDOW 0 111 108 Left 2
WINDOW 3 85 131 Left 2
SYMATTR InstName Q3
SYMATTR Value BC547C
SYMBOL res 112 352 R0
WINDOW 3 36 68 Left 2
SYMATTR InstName R1
SYMATTR Value 220
SYMBOL res 304 352 R0
WINDOW 3 36 66 Left 2
SYMATTR InstName R2
SYMATTR Value 470
SYMBOL res 208 16 R0
WINDOW 0 -24 -2 Left 2
WINDOW 3 35 -2 Left 2
SYMATTR InstName R3
SYMATTR Value 300
SYMBOL res 400 16 R0
WINDOW 3 34 66 Left 2
SYMATTR InstName R4
SYMATTR Value 4.7K
SYMBOL nmos 592 240 R0
SYMATTR InstName M1
SYMATTR Value IRFZ44N
SYMBOL voltage 896 16 R0
WINDOW 0 10 102 Left 2
WINDOW 3 -442 190 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(5 0 50e-6 1e-6 1e-6 100e-6 200e-6 2)
SYMBOL res 800 176 R270
WINDOW 0 52 -15 VTop 2
WINDOW 3 51 -24 VBottom 2
SYMATTR InstName R6
SYMATTR Value 1
SYMBOL voltage -112 240 R0
WINDOW 0 -61 22 Left 2
WINDOW 3 -63 -5 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value PULSE(0 4 50e-6 1e-6 1e-6 15e-6 30e-6 40)
SYMBOL cap 624 32 R0
WINDOW 0 44 7 Left 2
WINDOW 3 44 33 Left 2
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL res 448 176 R270
WINDOW 0 59 69 VTop 2
WINDOW 3 57 68 VBottom 2
SYMATTR InstName R8
SYMATTR Value 4.7K
SYMBOL res 624 352 R0
SYMATTR InstName R7
SYMATTR Value .22
SYMBOL res 224 128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 56
SYMBOL res 112 128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R9
SYMATTR Value 56
TEXT 768 432 Left 2 !.tran 500µ startup