Version 4 SHEET 1 1656 680 WIRE 16 -80 -224 -80 WIRE 160 -80 16 -80 WIRE 288 -80 160 -80 WIRE 576 -80 288 -80 WIRE 784 -80 576 -80 WIRE 976 -80 784 -80 WIRE 160 -64 160 -80 WIRE 784 -32 784 -80 WIRE 576 0 576 -16 WIRE 976 0 976 -16 WIRE 48 48 16 48 WIRE 160 48 160 16 WIRE 160 48 128 48 WIRE 192 48 160 48 WIRE 288 48 272 48 WIRE 576 80 576 64 WIRE 672 80 576 80 WIRE 784 80 784 48 WIRE 784 80 752 80 WIRE 816 80 784 80 WIRE 976 80 976 64 WIRE 976 80 896 80 WIRE 16 96 16 48 WIRE 128 96 16 96 WIRE 288 96 288 48 WIRE 288 96 192 96 WIRE -224 144 -224 -80 WIRE -144 144 -224 144 WIRE 144 144 -64 144 WIRE -224 176 -224 144 WIRE 48 176 -64 176 WIRE 144 176 144 144 WIRE 144 176 128 176 WIRE 160 176 144 176 WIRE 256 176 240 176 WIRE 576 176 576 80 WIRE 576 176 496 176 WIRE 752 176 576 176 WIRE 976 176 976 80 WIRE 976 176 816 176 WIRE 1120 176 976 176 WIRE 576 192 576 176 WIRE 976 192 976 176 WIRE 16 208 16 96 WIRE 16 208 -160 208 WIRE 288 208 288 96 WIRE 384 208 288 208 WIRE -64 224 -64 176 WIRE 256 256 256 176 WIRE 256 256 192 256 WIRE -160 272 -160 208 WIRE 16 272 16 208 WIRE 288 272 288 208 WIRE 384 272 384 208 WIRE 496 272 496 176 WIRE 688 272 624 272 WIRE 784 272 768 272 WIRE 800 272 784 272 WIRE 928 272 880 272 WIRE 1120 272 1120 176 WIRE -224 320 -224 256 WIRE -224 320 -240 320 WIRE -64 320 -64 288 WIRE -48 320 -64 320 WIRE 224 320 192 320 WIRE 784 320 784 272 WIRE -240 336 -240 320 WIRE -160 352 -160 336 WIRE 384 352 384 336 WIRE 496 352 496 336 WIRE 1120 352 1120 336 WIRE -224 416 -224 320 WIRE -160 416 -224 416 WIRE 16 416 16 368 WIRE 16 416 -160 416 WIRE 288 416 288 368 WIRE 288 416 16 416 WIRE 384 416 288 416 WIRE 496 416 384 416 WIRE 576 416 576 288 WIRE 576 416 496 416 WIRE 784 416 784 400 WIRE 784 416 576 416 WIRE 976 416 976 288 WIRE 976 416 784 416 WIRE 1120 416 976 416 FLAG -240 336 0 SYMBOL ind2 32 64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 29µ SYMATTR Type ind SYMATTR SpiceLine Rser=10m SYMBOL ind2 176 64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 29µ SYMATTR Type ind SYMATTR SpiceLine Rser=12m SYMBOL ind2 144 160 R90 WINDOW 0 10 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L3 SYMATTR Value 100n SYMATTR Type ind SYMBOL ind2 256 160 R90 WINDOW 0 4 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L4 SYMATTR Value 100n SYMATTR Type ind SYMBOL voltage -224 160 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 124 Left 2 SYMATTR InstName V1 SYMATTR Value 48 SYMBOL npn -48 272 R0 SYMATTR InstName Q1 SYMBOL npn 224 272 R0 WINDOW 0 67 9 Left 2 SYMATTR InstName Q2 SYMBOL ind 144 -80 R0 WINDOW 3 34 63 Left 2 SYMATTR Value 100µ SYMATTR InstName L5 SYMATTR SpiceLine Rser=100m SYMBOL res -160 160 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 200 SYMBOL cap 192 80 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 440n SYMATTR SpiceLine Rser=10m SYMBOL diode -80 224 R0 SYMATTR InstName D1 SYMBOL diode 176 256 R0 SYMATTR InstName D2 SYMBOL zener -144 416 R180 WINDOW 0 -42 56 Left 2 WINDOW 3 -102 31 Left 2 SYMATTR InstName D3 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 400 416 R180 WINDOW 0 24 64 Left 2 WINDOW 3 45 28 Left 2 SYMATTR InstName D4 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL ind2 656 96 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 2 42 VBottom 2 SYMATTR InstName L6 SYMATTR Value 29µ SYMATTR SpiceLine Rser=10m SYMBOL ind2 800 96 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 4 56 VBottom 2 SYMATTR InstName L7 SYMATTR Value 29µ SYMATTR SpiceLine Rser=10m SYMBOL nmos 928 192 R0 WINDOW 0 4 115 Left 2 WINDOW 3 -10 141 Left 2 SYMATTR InstName M1 SYMATTR Value SPA11N60C3 SYMBOL nmos 624 192 M0 WINDOW 0 2 109 Left 2 WINDOW 3 -92 134 Left 2 SYMATTR InstName M2 SYMATTR Value SPA11N60C3 SYMBOL cap 816 160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 440n SYMBOL voltage 784 304 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 44 Left 2 WINDOW 3 24 72 Left 2 SYMATTR Value 4.5 SYMATTR InstName V2 SYMBOL ind2 784 256 R90 WINDOW 0 4 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L8 SYMATTR Value 150n SYMATTR Type ind SYMATTR SpiceLine Rser=10m SYMBOL ind2 896 256 R90 WINDOW 0 4 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L9 SYMATTR Value 150n SYMATTR Type ind SYMATTR SpiceLine Rser=10m SYMBOL ind 768 -48 R0 WINDOW 3 35 62 Left 2 SYMATTR Value 100µ SYMATTR InstName L10 SYMATTR SpiceLine Rser=100m SYMBOL zener 512 416 R180 WINDOW 0 -36 55 Left 2 WINDOW 3 -100 30 Left 2 SYMATTR InstName D5 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 1136 416 R180 WINDOW 0 24 64 Left 2 WINDOW 3 44 28 Left 2 SYMATTR InstName D6 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener -144 336 R180 WINDOW 0 -39 32 Left 2 WINDOW 3 -80 5 Left 2 SYMATTR InstName D7 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 400 336 R180 WINDOW 0 24 64 Left 2 WINDOW 3 46 28 Left 2 SYMATTR InstName D8 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 512 336 R180 WINDOW 0 24 64 Left 2 WINDOW 3 -51 90 Left 2 SYMATTR InstName D9 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 1136 336 R180 WINDOW 0 24 64 Left 2 WINDOW 3 44 28 Left 2 SYMATTR InstName D10 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 0 -80 R0 WINDOW 0 45 30 Left 2 SYMATTR InstName D11 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 272 -80 R0 WINDOW 0 40 31 Left 2 SYMATTR InstName D12 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 560 -80 R0 WINDOW 0 43 31 Left 2 SYMATTR InstName D13 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL zener 960 -80 R0 WINDOW 0 44 32 Left 2 SYMATTR InstName D14 SYMATTR Value 1N5378B SYMATTR Description Diode SYMATTR Type diode SYMBOL diode 32 48 R180 WINDOW 0 38 33 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D15 SYMBOL diode 304 48 R180 WINDOW 0 -47 32 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D16 SYMBOL diode 592 64 R180 WINDOW 0 -50 31 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D17 SYMBOL diode 992 64 R180 WINDOW 0 -53 32 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D18 TEXT 296 96 Left 2 !K1 L1 L2 L3 L4 0.999 TEXT 344 64 Left 2 !.tran 1200µ uic TEXT 352 128 Left 2 !K2 L6 L7 L8 L9 0.999 TEXT 728 120 Left 2 ;f = 38 kHz