Version 4 SHEET 1 1228 1008 WIRE -624 160 -624 -144 WIRE -624 624 -624 240 WIRE -320 64 -320 32 WIRE -320 192 -320 144 WIRE -320 224 -320 192 WIRE -320 624 -624 624 WIRE -320 624 -320 304 WIRE -176 192 -320 192 WIRE -176 288 -176 272 WIRE -160 448 -160 400 WIRE -160 464 -160 448 WIRE -160 624 -320 624 WIRE -160 624 -160 528 WIRE -96 192 -176 192 WIRE -96 288 -176 288 WIRE -96 288 -96 256 WIRE -80 448 -160 448 WIRE -80 448 -80 384 WIRE -32 192 -96 192 WIRE -32 256 -96 256 WIRE -32 320 -160 320 WIRE -32 384 -80 384 WIRE -16 320 -32 320 WIRE 0 -144 -624 -144 WIRE 0 -128 0 -144 WIRE 0 -48 0 -64 WIRE 112 624 -160 624 WIRE 112 640 112 624 WIRE 128 32 -320 32 WIRE 128 128 128 32 WIRE 128 624 112 624 WIRE 128 624 128 448 WIRE 144 -144 0 -144 WIRE 144 -32 144 -64 WIRE 144 32 128 32 WIRE 144 32 144 -32 WIRE 352 352 288 352 WIRE 352 400 352 352 WIRE 352 496 352 400 WIRE 352 624 128 624 WIRE 352 624 352 560 WIRE 368 224 288 224 WIRE 368 256 368 224 WIRE 416 400 352 400 WIRE 448 224 368 224 WIRE 496 80 496 48 WIRE 512 -32 144 -32 WIRE 512 48 496 48 WIRE 512 48 512 32 WIRE 544 -32 512 -32 WIRE 640 -32 608 -32 WIRE 640 48 512 48 WIRE 656 224 528 224 WIRE 736 -144 144 -144 WIRE 736 -112 736 -144 WIRE 736 176 736 -32 WIRE 736 400 496 400 WIRE 736 400 736 272 WIRE 736 464 736 400 WIRE 736 624 352 624 WIRE 736 624 736 544 WIRE 752 624 736 624 WIRE 944 -32 864 -32 WIRE 960 48 864 48 WIRE 960 80 960 48 WIRE 1056 -32 1008 -32 WIRE 1056 -16 1056 -32 WIRE 1056 48 960 48 WIRE 1168 -32 1056 -32 WIRE 1168 48 1056 48 FLAG 112 640 0 FLAG 368 320 0 FLAG 0 -48 0 FLAG 496 80 0 FLAG 960 80 0 FLAG -320 32 vcc SYMBOL res -176 304 R0 SYMATTR InstName R1 SYMATTR Value 10k SYMBOL res -336 48 R0 SYMATTR InstName R2 SYMATTR Value 18k SYMBOL res -336 208 R0 SYMATTR InstName R3 SYMATTR Value 4.7k SYMBOL res 512 384 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R4 SYMATTR Value 1k SYMBOL cap -176 464 R0 SYMATTR InstName C1 SYMATTR Value 4.7n SYMBOL cap -112 192 R0 SYMATTR InstName C2 SYMATTR Value 100p SYMBOL res -192 176 R0 SYMATTR InstName R5 SYMATTR Value 150k SYMBOL res 720 448 R0 SYMATTR InstName R6 SYMATTR Value 0.5 SYMBOL cap 336 496 R0 SYMATTR InstName C3 SYMATTR Value 470p SYMBOL res 544 208 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R7 SYMATTR Value 22 SYMBOL schottky 384 320 R180 WINDOW 0 24 72 Left 0 WINDOW 3 24 0 Left 0 SYMATTR InstName D1 SYMATTR Value 1N5819 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 128 -160 R0 SYMATTR InstName R8 SYMATTR Value 56k SYMBOL cap -16 -128 R0 SYMATTR InstName C4 SYMATTR Value 220µ SYMBOL ind2 720 -128 R0 SYMATTR InstName L1 SYMATTR Value 1m SYMATTR Type ind SYMBOL ind2 624 64 M180 WINDOW 0 36 80 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName L2 SYMATTR Value 60µ SYMATTR Type ind SYMBOL schottky 608 -48 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName D2 SYMATTR Value 1N5819 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 496 -32 R0 SYMATTR InstName C6 SYMATTR Value 100µ SYMBOL ind2 880 64 R180 WINDOW 0 36 80 Left 0 WINDOW 3 49 40 Left 0 SYMATTR InstName L3 SYMATTR Value 70µ SYMATTR Type ind SYMBOL schottky 944 -16 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D4 SYMATTR Value MBR735 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 1040 -16 R0 SYMATTR InstName C7 SYMATTR Value 2200µ SYMBOL voltage -624 144 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 180 SYMBOL res 1152 -48 R0 SYMATTR InstName R9 SYMATTR Value 3 SYMBOL EXTRA\\UC\\UC384x\\UC3842B 128 288 R0 SYMATTR InstName U1 SYMBOL EXTRA\\IRF\\NMOS\\irf840 704 224 R0 SYMATTR InstName U2 TEXT -658 664 Left 0 !.tran 100m startup TEXT 768 120 Left 0 !k l1 l2 l3 1 TEXT -656 696 Left 0 !.options reltol=0.01 TEXT -656 728 Left 0 !.options trtol=7 TEXT -664 768 Left 0 !.ic V(vcc)=15.8