Version 4 SHEET 1 880 680 WIRE 256 -240 16 -240 WIRE 624 -240 256 -240 WIRE 688 -240 624 -240 WIRE 704 -240 688 -240 WIRE 528 -176 480 -176 WIRE 608 -176 560 -176 WIRE 480 -144 480 -176 WIRE 560 -144 560 -176 WIRE 624 -144 624 -240 WIRE 688 -128 688 -240 WIRE 768 -128 688 -128 WIRE 256 -96 256 -240 WIRE 528 -64 528 -176 WIRE 560 -64 528 -64 WIRE 608 -64 608 -176 WIRE 624 -64 608 -64 WIRE 608 -16 608 -64 WIRE 672 -16 608 -16 WIRE 480 16 480 -64 WIRE 608 16 608 -16 WIRE -112 64 -352 64 WIRE 128 64 -112 64 WIRE 256 64 256 -16 WIRE 256 64 192 64 WIRE 432 64 256 64 WIRE -112 96 -112 64 WIRE 256 96 256 64 WIRE 432 96 352 96 WIRE -352 128 -352 64 WIRE 352 128 352 96 WIRE 480 176 480 112 WIRE 768 192 768 -128 WIRE 768 192 704 192 WIRE -112 224 -112 176 WIRE 608 240 608 80 WIRE 608 240 560 240 WIRE 704 320 704 272 WIRE 704 320 608 320 WIRE 704 336 704 320 WIRE 16 368 16 -240 WIRE 176 368 96 368 WIRE 272 368 176 368 WIRE 352 368 352 208 WIRE 352 368 272 368 WIRE 352 400 352 368 WIRE 560 448 560 240 WIRE 560 448 416 448 WIRE 704 448 704 416 WIRE 704 448 560 448 FLAG 480 256 0 FLAG 784 -240 0 FLAG 352 496 0 FLAG 176 432 0 FLAG 272 448 0 FLAG 256 176 0 FLAG -112 304 0 FLAG 608 384 0 FLAG -352 208 0 SYMBOL res -128 80 R0 SYMATTR InstName R1 SYMATTR Value 10000 SYMBOL res 240 80 R0 SYMATTR InstName R2 SYMATTR Value 470k SYMBOL res 240 -112 R0 SYMATTR InstName R3 SYMATTR Value 680k SYMBOL res 288 464 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R4 SYMATTR Value 82k SYMBOL res 336 112 R0 SYMATTR InstName R5 SYMATTR Value 150k SYMBOL res 464 160 R0 SYMATTR InstName R6 SYMATTR Value 600 SYMBOL res 0 384 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R7 SYMATTR Value 33k SYMBOL ind2 -128 208 R0 SYMATTR InstName L1 SYMATTR Value 4µ SYMATTR Type ind SYMBOL ind2 608 -160 R0 SYMATTR InstName L2 SYMATTR Value 5µ SYMATTR Type ind SYMBOL ind2 544 -160 R0 SYMATTR InstName L3 SYMATTR Value 5µ SYMATTR Type ind SYMBOL ind 464 -160 R0 SYMATTR InstName L4 SYMATTR Value 5µ SYMBOL cap 672 0 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C2 SYMATTR Value 100n SYMBOL cap 592 16 R0 SYMATTR InstName C3 SYMATTR Value 100n SYMBOL cap 128 80 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C4 SYMATTR Value 100p SYMBOL cap 160 368 R0 SYMATTR InstName C5 SYMATTR Value 1µ SYMBOL npn 416 400 M0 SYMATTR InstName Q1 SYMATTR Value BC547C SYMBOL xdgnmos 432 16 R0 SYMATTR InstName U1 SYMATTR Value BF981 SYMBOL diode 592 320 R0 SYMATTR InstName D1 SYMBOL voltage 688 -240 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 -32 56 VBottom 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 19V SYMBOL res 688 176 R0 SYMATTR InstName R8 SYMATTR Value 39k SYMBOL res 688 320 R0 SYMATTR InstName R9 SYMATTR Value 22k SYMBOL voltage -352 112 R0 WINDOW 123 24 132 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value SINE() SYMATTR Value2 AC 2µV TEXT 464 -280 Left 0 !K1 L1 L2 l3 0.98 TEXT -512 -296 Left 0 !.lib DG_NMOS.lib TEXT -514 520 Left 0 !.ac oct 1001 10k 30meg