Version 4
SHEET 1 880 680
WIRE 160 16 80 16
WIRE 384 16 160 16
WIRE 592 16 384 16
WIRE 160 32 160 16
WIRE 384 32 384 16
WIRE 592 32 592 16
WIRE 384 112 384 96
WIRE 592 112 592 96
WIRE 80 128 80 16
WIRE 160 128 160 112
WIRE 256 128 160 128
WIRE 160 144 160 128
WIRE 320 160 304 160
WIRE 528 160 512 160
WIRE 384 224 384 208
WIRE 592 224 592 208
WIRE 592 224 384 224
WIRE 672 224 592 224
WIRE 80 240 80 208
WIRE 160 240 160 224
WIRE 256 240 256 128
WIRE 304 240 304 160
WIRE 304 240 256 240
WIRE 512 240 512 160
WIRE 512 240 304 240
WIRE 592 240 592 224
WIRE 672 320 672 304
WIRE 592 336 592 320
WIRE 592 416 592 400
WIRE 672 416 672 400
FLAG 80 240 0
FLAG 160 240 0
FLAG 672 416 0
FLAG 592 416 0
SYMBOL voltage 80 112 R0
WINDOW 3 -196 102 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 42V 50Hz)
SYMATTR InstName V1
SYMBOL res 144 128 R0
SYMATTR InstName R1
SYMATTR Value 1500R
SYMBOL res 144 16 R0
SYMATTR InstName R2
SYMATTR Value 500R
SYMBOL diode 368 32 R0
WINDOW 3 -29 -39 Left 0
SYMATTR Value Dp600g
SYMATTR InstName D1
SYMBOL diode 608 96 R180
WINDOW 0 35 60 Left 0
WINDOW 3 -20 100 Left 0
SYMATTR InstName D2
SYMATTR Value Dp600g
SYMBOL npn 320 112 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL pnp 528 112 R0
SYMATTR InstName Q2
SYMATTR Value BC557C
SYMBOL res 656 208 R0
SYMATTR InstName R3
SYMATTR Value 1R
SYMBOL ind 656 304 R0
SYMATTR InstName L1
SYMATTR Value 0.1H
SYMBOL res 576 224 R0
SYMATTR InstName R4
SYMATTR Value 10R
SYMBOL cap 576 336 R0
SYMATTR InstName C1
SYMATTR Value 100µF
TEXT -88 272 Left 0 !.tran 0 40ms 0 1us