Version 4 SHEET 1 3568 680 WIRE 1872 -512 1296 -512 WIRE 1200 -384 1104 -384 WIRE 1360 -384 1200 -384 WIRE 1488 -384 1360 -384 WIRE 1648 -384 1488 -384 WIRE 2416 -384 1648 -384 WIRE 1104 -352 1104 -384 WIRE 1200 -352 1200 -384 WIRE 1360 -352 1360 -384 WIRE 1488 -352 1488 -384 WIRE 1104 -288 992 -288 WIRE 1648 -288 1648 -384 WIRE 1488 -240 1488 -272 WIRE 1584 -240 1568 -240 WIRE 1872 -240 1872 -512 WIRE 1872 -240 1856 -240 WIRE 2160 -240 1872 -240 WIRE 3040 -240 2160 -240 WIRE 1200 -208 1200 -288 WIRE 1200 -208 1040 -208 WIRE 1856 -208 1856 -240 WIRE 1936 -208 1856 -208 WIRE 1104 -192 1104 -288 WIRE 1200 -192 1200 -208 WIRE 1488 -192 1488 -240 WIRE 1536 -192 1488 -192 WIRE 3040 -192 3040 -240 WIRE 992 -176 992 -208 WIRE 1040 -176 1040 -208 WIRE 1040 -176 992 -176 WIRE 1648 -160 1648 -192 WIRE 1664 -160 1648 -160 WIRE 1856 -160 1856 -208 WIRE 1856 -160 1728 -160 WIRE 2560 -128 2464 -128 WIRE 2656 -128 2624 -128 WIRE 2720 -128 2656 -128 WIRE 2816 -128 2720 -128 WIRE 2416 -112 2416 -384 WIRE 2464 -112 2464 -128 WIRE 2720 -112 2720 -128 WIRE 2816 -112 2816 -128 WIRE 1104 -96 1104 -128 WIRE 1136 -96 1104 -96 WIRE 1200 -96 1200 -128 WIRE 1200 -96 1136 -96 WIRE 1856 -80 1856 -160 WIRE 1536 -16 1536 -192 WIRE 1584 -16 1536 -16 WIRE 1696 -16 1664 -16 WIRE 2048 -16 2016 -16 WIRE 2464 -16 2464 -32 WIRE 2592 -16 2464 -16 WIRE 2720 -16 2720 -48 WIRE 2720 -16 2592 -16 WIRE 2816 -16 2816 -32 WIRE 2816 -16 2720 -16 WIRE 2416 0 2416 -32 WIRE 2656 16 2656 -128 WIRE 1600 80 1584 80 WIRE 1696 80 1664 80 WIRE 2368 80 2016 80 WIRE 1488 96 1488 -128 WIRE 2416 112 2416 96 WIRE 2416 112 2352 112 WIRE 2416 128 2416 112 WIRE 2656 128 2656 96 WIRE 1600 176 1584 176 WIRE 1696 176 1680 176 WIRE 2352 176 2352 112 WIRE 2352 176 2016 176 WIRE 3296 176 3152 176 WIRE 2160 192 2160 -240 WIRE 2416 224 2416 208 WIRE 2656 224 2656 192 WIRE 2688 224 2656 224 WIRE 3040 224 3040 -112 WIRE 3040 224 2880 224 WIRE 3088 224 3040 224 WIRE 1520 272 1504 272 WIRE 1600 272 1584 272 WIRE 1696 272 1680 272 WIRE 2048 272 2016 272 WIRE 2480 272 2400 272 WIRE 2048 304 2048 272 WIRE 2160 304 2160 272 WIRE 2160 304 2048 304 WIRE 2592 320 2592 -16 WIRE 2688 320 2592 320 WIRE 2928 320 2880 320 WIRE 3152 320 3152 272 WIRE 2928 336 2928 320 WIRE 2160 400 2160 304 WIRE 3296 400 3296 176 WIRE 3296 400 2160 400 WIRE 1296 448 1296 -512 WIRE 2016 448 1296 448 WIRE 2320 448 2320 272 WIRE 2320 448 2080 448 FLAG 1584 176 0 FLAG 1504 272 0 FLAG 1584 80 0 FLAG 2048 48 0 FLAG 2816 -128 OUT FLAG 2416 224 0 FLAG 1136 -96 0 FLAG 1360 -288 0 FLAG 1856 336 0 FLAG 1936 -144 0 FLAG 2928 336 0 FLAG 3152 320 0 FLAG 2480 352 0 FLAG 1488 96 0 SYMBOL NMOS 2368 0 R0 SYMATTR InstName Q1 SYMATTR Value Si4488DY SYMBOL RES 1696 160 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 42.2K SYMBOL ind2 2400 -128 R0 WINDOW 0 -1 36 Right 2 WINDOW 3 0 68 Right 2 SYMATTR InstName L1 SYMATTR Value 22µ SYMATTR Type ind SYMATTR SpiceLine Rpar=3K SYMBOL schottky 2560 -112 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value MBRS340 SYMBOL res 1696 256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 10K SYMBOL cap 1584 256 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value .0068µ SYMBOL polcap 2032 -16 R0 WINDOW 0 32 9 Left 2 WINDOW 3 34 49 Left 2 SYMATTR InstName C3 SYMATTR Value 4.7µ SYMBOL cap 1664 64 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .01µ SYMBOL res 2400 112 R0 SYMATTR InstName R7 SYMATTR Value .04 SYMBOL PowerProducts\\LT3758 1856 128 R0 SYMATTR InstName U1 SYMBOL ind2 2480 -16 R180 WINDOW 0 -6 78 Right 2 WINDOW 3 -5 40 Right 2 SYMATTR InstName L2 SYMATTR Value 4µ SYMATTR Type ind SYMATTR SpiceLine Rpar=1K SYMBOL res 2800 -128 R0 SYMATTR InstName Rload SYMATTR Value 1000meg SYMBOL cap 2704 -112 R0 SYMATTR InstName C1 SYMATTR Value 100µ SYMBOL voltage 992 -304 R0 WINDOW 3 -77 152 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value SINE(0 325 50) SYMATTR InstName V1 SYMBOL diode 1120 -288 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D4 SYMBOL diode 1120 -128 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D5 SYMBOL diode 1216 -288 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D6 SYMBOL diode 1216 -128 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D7 SYMBOL cap 1344 -352 R0 WINDOW 3 22 60 Left 2 SYMATTR Value 68µ SYMATTR InstName C5 SYMBOL cap 1920 -208 R0 SYMATTR InstName C6 SYMATTR Value 4.7µ SYMBOL res 2640 0 R0 SYMATTR InstName R2 SYMATTR Value 1k SYMBOL zener 2672 192 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D3 SYMATTR Value BZX84C15L SYMATTR Description Diode SYMATTR Type diode SYMBOL Optos\\PC817A 2784 272 R0 SYMATTR InstName U2 SYMBOL res 3024 -208 R0 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL npn 3088 176 R0 SYMATTR InstName Q2 SYMATTR Value 2N2222 SYMBOL res 2144 176 R0 SYMATTR InstName R5 SYMATTR Value 10k SYMBOL ind2 2496 368 R180 WINDOW 0 36 80 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName L3 SYMATTR Value 4µ SYMATTR Type ind SYMBOL res 2416 256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 10 SYMBOL diode 2080 432 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D9 SYMBOL res 1472 -368 R0 SYMATTR InstName R6 SYMATTR Value 50k SYMBOL res 1584 -256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 10k SYMBOL npn 1584 -288 R0 SYMATTR InstName Q4 SYMATTR Value 2n5657 SYMBOL diode 1664 -144 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMBOL zener 1504 -128 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D8 SYMATTR Value DFLZ33 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 1680 -32 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 67k TEXT 2928 384 Left 2 !.tran 0 1 0 startup TEXT 2440 -128 Bottom 2 !K1 L1 L2 L3 1 TEXT 880 328 Left 2 !.MODEL 2n5657 npn\n+IS=2.60089e-13 BF=46.1881 NF=0.9868 VAF=61.921\n+IKF=6.79554 ISE=7.20462e-12 NE=3.28966 BR=4.46937\n+NR=0.866274 VAR=7.19873 IKR=3.17468 ISC=1.74986e-13\n+NC=3.90625 RB=10.927 IRB=0.1 RBM=0.1\n+RE=0.0141049 RC=2.43986 XTB=0.136699 XTI=1.1199\n+EG=1.206 CJE=2.13868e-10 VJE=0.99 MJE=0.391421\n+TF=1.01847e-08 XTF=1.77369 VTF=3.60195 ITF=0.226713\n+CJC=4.74919e-11 VJC=0.95 MJC=0.361447 XCJC=0.789467\n+FC=0.8 CJS=0 VJS=0.75 MJS=0.5\n+TR=9.5407e-06 PTF=0 KF=0 AF=1\n* Model generated on Feb 21, 2004\n* Model format: SPICE3