Version 4 SHEET 1 900 840 WIRE 192 -64 160 -64 WIRE 400 -64 272 -64 WIRE 528 -64 400 -64 WIRE 608 -64 528 -64 WIRE 768 -64 672 -64 WIRE 160 -48 160 -64 WIRE 768 -16 768 -64 WIRE 528 16 528 -64 WIRE 160 96 160 32 WIRE 208 96 160 96 WIRE 304 96 288 96 WIRE 400 128 400 -64 WIRE 160 144 160 96 WIRE 608 160 608 144 WIRE 704 160 608 160 WIRE 528 176 528 80 WIRE 608 176 608 160 WIRE 704 192 704 160 WIRE 160 288 160 224 WIRE 608 304 608 256 WIRE 704 304 704 256 WIRE 704 304 608 304 WIRE -64 384 -64 368 WIRE -64 384 -192 384 WIRE 16 384 -64 384 WIRE 160 384 160 368 WIRE 192 384 160 384 WIRE 304 384 272 384 WIRE 400 384 400 192 WIRE 400 384 304 384 WIRE 528 384 528 256 WIRE 528 384 400 384 WIRE 16 416 16 384 WIRE 304 432 304 384 WIRE 304 432 112 432 WIRE 112 448 112 432 WIRE 464 464 336 464 WIRE 608 464 608 304 WIRE 608 464 464 464 WIRE -192 512 -192 384 WIRE 16 512 16 496 WIRE 112 512 16 512 WIRE 272 512 112 512 WIRE 464 544 464 464 WIRE 16 592 16 512 WIRE 336 592 336 560 WIRE 400 592 336 592 WIRE 464 704 464 640 WIRE -192 784 -192 592 WIRE 16 784 16 672 WIRE 16 784 -192 784 WIRE 128 784 16 784 WIRE 464 784 128 784 WIRE 128 800 128 784 FLAG 128 800 0 FLAG 304 96 Vcc FLAG -64 368 Vcc FLAG 608 144 Vcc FLAG 768 48 0 SYMBOL ind2 176 -64 M0 WINDOW 0 -29 49 Left 0 WINDOW 3 -44 80 Left 0 SYMATTR InstName L2 SYMATTR Value 50µ SYMATTR Type ind SYMBOL ind2 176 272 M0 WINDOW 0 -29 40 Left 0 WINDOW 3 -39 68 Left 0 SYMATTR InstName L3 SYMATTR Value 50µ SYMATTR Type ind SYMBOL npn2 272 464 R0 SYMATTR InstName Q1 SYMATTR Value MPSA06 SYMBOL res 448 688 R0 SYMATTR InstName R4 SYMATTR Value .1 SYMBOL res 288 -80 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R5 SYMATTR Value 1 SYMBOL res 288 368 R90 WINDOW 0 53 93 VBottom 0 WINDOW 3 28 54 VTop 0 SYMATTR InstName R6 SYMATTR Value 1 SYMBOL res 304 80 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R2 SYMATTR Value 0.1 SYMBOL cap 384 128 R0 SYMATTR InstName C1 SYMATTR Value 50n SYMBOL res 0 400 R0 SYMATTR InstName R7 SYMATTR Value 50k SYMBOL cap 96 448 R0 SYMATTR InstName C3 SYMATTR Value 20n SYMBOL res 144 128 R0 SYMATTR InstName R1 SYMATTR Value 0.5 SYMBOL diode 512 16 R0 SYMATTR InstName D1 SYMATTR Value 1N4148 SYMBOL ind2 512 160 R0 SYMATTR InstName L1 SYMATTR Value 5µ SYMATTR Type ind SYMBOL ind2 592 160 R0 SYMATTR InstName L4 SYMATTR Value 5µ SYMATTR Type ind SYMBOL voltage -192 496 R0 WINDOW 3 -281 -6 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value PULSE(0 12 1n .1m 0 1s) SYMBOL diode 608 -48 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL cap 752 -16 R0 SYMATTR InstName C2 SYMATTR Value 1000n SYMBOL npn 400 544 R0 SYMATTR InstName Q2 SYMATTR Value 2N2222 SYMBOL res 0 576 R0 SYMATTR InstName R3 SYMATTR Value 5k SYMBOL cap 688 192 R0 SYMATTR InstName C4 SYMATTR Value 10p TEXT -136 144 Left 0 !K L2 L3 0.999 TEXT -224 824 Left 0 !.tran 1m TEXT 728 152 Left 0 !K2 L1 L4 .999