Version 4
SHEET 1 1340 680
WIRE 512 -176 480 -176
WIRE 688 -176 592 -176
WIRE 1120 -176 688 -176
WIRE 688 -112 688 -176
WIRE 480 -64 480 -176
WIRE 608 -64 480 -64
WIRE 624 -64 608 -64
WIRE 480 -32 480 -64
WIRE 1120 0 1120 -176
WIRE 608 16 608 -64
WIRE 688 16 688 -16
WIRE 688 16 672 16
WIRE 128 32 80 32
WIRE 240 32 192 32
WIRE 480 80 480 48
WIRE 80 128 80 32
WIRE 80 128 -240 128
WIRE 128 128 80 128
WIRE 240 128 240 32
WIRE 240 128 192 128
WIRE 416 128 240 128
WIRE 688 176 688 16
WIRE 752 176 688 176
WIRE 864 176 832 176
WIRE 976 176 864 176
WIRE -240 192 -240 128
WIRE 688 192 688 176
WIRE 864 192 864 176
WIRE 976 192 976 176
WIRE -240 304 -240 272
WIRE 336 304 -240 304
WIRE 480 304 480 176
WIRE 480 304 336 304
WIRE 688 304 688 256
WIRE 688 304 480 304
WIRE 864 304 864 256
WIRE 864 304 688 304
WIRE 976 304 976 272
WIRE 976 304 864 304
WIRE 1120 304 1120 80
WIRE 1120 304 976 304
WIRE 336 352 336 304
FLAG 336 352 0
SYMBOL Robertugo\\Resistor 224 112 R90
WINDOW 0 0 64 VBottom 2
WINDOW 3 33 64 VTop 2
SYMATTR InstName R1
SYMATTR Value 150R
SYMBOL pnp 624 -16 M180
SYMATTR InstName Q2
SYMATTR Value BD912
SYMBOL res 608 -192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 22R
SYMBOL schottky 704 256 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 736 192 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 29µH
SYMATTR SpiceLine Ipk=7.5 Rser=.015
SYMBOL cap 848 192 R0
SYMATTR InstName C1
SYMATTR Value 2200µF
SYMBOL voltage 1120 -16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=0
SYMATTR InstName V1
SYMATTR Value 24
SYMBOL voltage -240 176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0 0 0 9u 18.75u)
SYMBOL res 960 176 R0
SYMATTR InstName R4
SYMATTR Value 2R
SYMBOL npn 416 80 R0
SYMATTR InstName Q1
SYMATTR Value BC637
SYMBOL res 464 -48 R0
SYMATTR InstName R2
SYMATTR Value 22R
SYMBOL schottky 672 0 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N5818
SYMBOL cap 192 16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 200nF
TEXT -272 376 Left 2 !.tran 0 0.1ms 0ms