Version 4 SHEET 1 912 680 WIRE 336 -400 128 -400 WIRE 512 -400 336 -400 WIRE 640 -400 512 -400 WIRE 336 -336 336 -400 WIRE 512 -336 512 -400 WIRE 640 -256 640 -400 WIRE 512 -208 512 -256 WIRE 512 -208 432 -208 WIRE 576 -208 512 -208 WIRE 432 -160 432 -208 WIRE 512 -160 512 -208 WIRE 640 -80 640 -160 WIRE 672 -80 640 -80 WIRE 800 -80 736 -80 WIRE 336 -32 336 -256 WIRE 432 -32 432 -96 WIRE 432 -32 336 -32 WIRE 512 -32 512 -80 WIRE 512 -32 432 -32 WIRE 288 0 240 0 WIRE 416 0 352 0 WIRE 640 16 640 -80 WIRE 672 16 640 16 WIRE 800 16 800 -80 WIRE 800 16 752 16 WIRE 512 32 512 -32 WIRE 240 80 240 0 WIRE 288 80 240 80 WIRE 416 80 416 0 WIRE 416 80 368 80 WIRE 448 80 416 80 WIRE 128 96 128 -400 WIRE 240 112 240 80 WIRE 416 112 416 80 WIRE 640 176 640 16 WIRE 800 192 800 16 WIRE 240 208 240 192 WIRE 240 240 240 208 WIRE 128 352 128 176 WIRE 240 352 240 320 WIRE 240 352 128 352 WIRE 416 352 416 192 WIRE 416 352 240 352 WIRE 512 352 512 128 WIRE 512 352 416 352 WIRE 640 352 640 256 WIRE 640 352 512 352 WIRE 800 352 800 256 WIRE 800 352 640 352 WIRE 128 400 128 352 FLAG 128 400 0 FLAG 240 208 Vin FLAG 512 -208 Vininv FLAG 800 16 Vout SYMBOL Misc\\battery 128 80 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 5.0 SYMBOL Misc\\signal 240 224 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0.2 1.5 0 20n 20n 5u 10u) SYMBOL npn 448 32 R0 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL res 384 64 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 10k SYMBOL res 400 96 R0 SYMATTR InstName R2 SYMATTR Value 10k SYMBOL res 496 -352 R0 SYMATTR InstName R3 SYMATTR Value 1k SYMBOL pnp 576 -160 M180 SYMATTR InstName Q2 SYMATTR Value 2N3906 SYMBOL res 624 160 R0 SYMATTR InstName R4 SYMATTR Value 680 SYMBOL res 496 -176 R0 SYMATTR InstName R5 SYMATTR Value 4.7k SYMBOL cap 416 -160 R0 SYMATTR InstName C1 SYMATTR Value 100p SYMBOL res 320 -352 R0 SYMATTR InstName R6 SYMATTR Value 4.7k SYMBOL cap 784 192 R0 SYMATTR InstName C2 SYMATTR Value 300p SYMBOL res 768 0 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 330 SYMBOL schottky 736 -96 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D1 SYMATTR Value BAT54 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 352 -16 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 330p SYMBOL res 224 96 R0 SYMATTR InstName R8 SYMATTR Value 47 TEXT 144 376 Left 2 !.tran 50u TEXT 808 168 Left 2 ;N.P. TEXT 808 280 Left 2 ;Dummy\nLoad TEXT 136 -376 Left 2 ;N.P.: Not Populated