Version 4 SHEET 1 1720 724 WIRE -368 32 -496 32 WIRE -304 32 -368 32 WIRE -368 48 -368 32 WIRE 496 96 368 96 WIRE 656 96 496 96 WIRE 704 96 656 96 WIRE 656 144 656 96 WIRE -496 160 -496 32 WIRE -368 160 -368 112 WIRE 496 160 496 96 WIRE 448 176 208 176 WIRE 448 224 240 224 WIRE 656 256 656 224 WIRE 368 272 368 96 WIRE 1008 288 896 288 WIRE 1152 288 1072 288 WIRE 1232 288 1152 288 WIRE 1360 288 1312 288 WIRE 1504 288 1440 288 WIRE 1600 288 1504 288 WIRE 1664 288 1600 288 WIRE -496 352 -496 240 WIRE -368 352 -368 240 WIRE -368 352 -496 352 WIRE -208 352 -368 352 WIRE -96 352 -144 352 WIRE 1504 368 1504 288 WIRE -96 384 -96 352 WIRE -48 384 -96 384 WIRE 208 384 208 176 WIRE 208 384 144 384 WIRE 1008 384 976 384 WIRE 1152 384 1152 288 WIRE 1152 384 1072 384 WIRE 368 400 368 336 WIRE 464 400 368 400 WIRE 528 400 464 400 WIRE 640 400 608 400 WIRE 752 400 640 400 WIRE 896 400 896 288 WIRE 896 400 848 400 WIRE -496 416 -496 352 WIRE -464 416 -496 416 WIRE -336 416 -400 416 WIRE -48 416 -256 416 WIRE 240 416 240 224 WIRE 240 416 144 416 WIRE 1664 416 1664 288 WIRE -48 448 -256 448 WIRE 240 448 144 448 WIRE 368 448 368 400 WIRE 176 480 144 480 WIRE 208 480 176 480 WIRE 496 480 496 240 WIRE 752 480 496 480 WIRE 976 480 976 384 WIRE 976 480 848 480 WIRE 1008 480 976 480 WIRE 1152 480 1072 480 WIRE 1504 480 1504 432 WIRE 176 512 176 480 WIRE -496 528 -496 416 WIRE -256 544 -256 448 WIRE -224 544 -256 544 WIRE -112 544 -144 544 WIRE 368 544 368 512 WIRE -256 576 -256 544 WIRE 496 576 496 480 WIRE -112 592 -112 544 WIRE 240 592 240 448 WIRE 448 592 240 592 WIRE 896 592 896 400 WIRE 1008 592 896 592 WIRE 1152 592 1152 480 WIRE 1152 592 1072 592 WIRE 1504 592 1504 560 WIRE 1504 592 1152 592 WIRE 1664 592 1664 496 WIRE 1664 592 1504 592 WIRE 1504 624 1504 592 WIRE 208 640 208 480 WIRE 448 640 208 640 WIRE -496 688 -496 608 WIRE -256 688 -256 640 WIRE -112 688 -112 672 WIRE 496 704 496 656 FLAG 176 512 0 FLAG -256 688 0 FLAG -112 688 0 FLAG 464 400 12 FLAG 640 400 1 FLAG 368 544 0 FLAG 704 96 HT FLAG 496 704 0 FLAG -496 688 0 FLAG 1504 624 0 FLAG 1600 288 OUT FLAG -304 32 OUT FLAG 656 256 0 SYMBOL HALF_VM 48 432 R0 SYMATTR InstName U1 SYMATTR SpiceLine REF=5 PERIOD=5U DUTYMAX=0.8 IMAX=2.5V VOUTHI=15V ROUT=10 VHIGH=3 SYMBOL sw 496 256 M180 SYMATTR InstName S1 SYMATTR Value Sbreak SYMBOL sw 496 672 M180 SYMATTR InstName S2 SYMATTR Value Sbreak SYMBOL cap -272 576 R0 SYMATTR InstName C1 SYMATTR Value 220p SYMBOL res -240 560 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL bv -112 576 R0 SYMATTR InstName B1 SYMATTR Value V=abs(V(12,1)) SYMBOL res 512 416 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R2 SYMATTR Value 0.894 SYMBOL cap 352 448 R0 SYMATTR InstName C2 SYMATTR Value 10µ SYMATTR SpiceLine Rpar=1e6 SYMBOL cap 352 272 R0 SYMATTR InstName C3 SYMATTR Value 10µ SYMATTR SpiceLine Rpar=1e6 SYMBOL XFMR1 800 432 R0 SYMATTR InstName U2 SYMATTR SpiceLine RATIO=0.512 SYMBOL res -352 432 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R3 SYMATTR Value 20k SYMBOL cap -464 432 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C4 SYMATTR Value 7.51n SYMBOL cap -208 368 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C5 SYMATTR Value 625p SYMBOL res -512 144 R0 SYMATTR InstName R4 SYMATTR Value 47.675k SYMBOL res -384 144 R0 SYMATTR InstName R5 SYMATTR Value 0.70018k SYMBOL cap -384 48 R0 SYMATTR InstName C6 SYMATTR Value 2.33n SYMBOL res -512 512 R0 SYMATTR InstName R6 SYMATTR Value 10.346k SYMBOL diode 1008 304 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D1 SYMATTR Value Dbreak SYMBOL diode 1008 400 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D2 SYMATTR Value Dbreak SYMBOL diode 1072 464 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName D3 SYMATTR Value Dbreak SYMBOL diode 1072 576 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName D4 SYMATTR Value Dbreak SYMBOL ind 1216 304 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 5 56 VBottom 0 SYMATTR InstName L1 SYMATTR Value 81µ SYMBOL res 1344 304 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R7 SYMATTR Value 70m SYMBOL cap 1488 368 R0 SYMATTR InstName C7 SYMATTR Value 156µ SYMBOL res 1488 464 R0 SYMATTR InstName R8 SYMATTR Value 76.5m SYMBOL res 1648 400 R0 SYMATTR InstName R9 SYMATTR Value 7 SYMBOL voltage 656 128 R0 SYMATTR InstName V1 SYMATTR Value 160 TEXT 840 120 Left 0 !.include power456.lib ; HALF_VM + more TEXT 24 568 Left 0 ;REF=5 TEXT -176 32 Left 0 !.ic V(out)=27.5 TEXT 840 72 Left 0 !.tran 0 2m 0 100n TEXT 840 96 Left 0 !.options gmin=1e-10 reltol=0.003 TEXT 840 144 Left 0 !.model Sbreak VSWITCH Roff=1e6 Ron=1.0 Voff=0.0 Von=1.0\n.model Dbreak D TT=1n Cjo=10pF Rs=.1\n.model Sbreak2 VSWITCH Roff=1e6 Ron=10m Voff=1 Von=10\n.model Dbreak D TT=1n Cjo=10pF Rs=.1