Version 4 SHEET 1 3592 708 WIRE 192 -736 112 -736 WIRE 368 -736 192 -736 WIRE 784 -736 368 -736 WIRE 784 -704 784 -736 WIRE 192 -656 192 -736 WIRE 720 -640 528 -640 WIRE 368 -608 368 -736 WIRE 528 -608 528 -640 WIRE 720 -592 720 -640 WIRE 784 -592 784 -624 WIRE 784 -592 720 -592 WIRE 928 -592 784 -592 WIRE 1024 -592 992 -592 WIRE 1072 -592 1024 -592 WIRE 1200 -592 1136 -592 WIRE 1520 -592 1200 -592 WIRE 1552 -592 1520 -592 WIRE 1664 -592 1632 -592 WIRE 1824 -592 1664 -592 WIRE 1200 -560 1200 -592 WIRE 1664 -528 1664 -592 WIRE 192 -512 192 -576 WIRE 288 -512 192 -512 WIRE 752 -512 608 -512 WIRE 1520 -512 1520 -592 WIRE 1824 -512 1824 -592 WIRE 752 -448 752 -512 WIRE 1200 -448 1200 -480 WIRE 1200 -448 752 -448 WIRE 192 -416 192 -512 WIRE 1024 -384 1024 -592 WIRE 1200 -368 1200 -448 WIRE 192 -256 192 -352 WIRE 448 -256 448 -416 WIRE 1024 -240 1024 -304 WIRE 1200 -240 1200 -288 WIRE 1520 -240 1520 -448 WIRE 1664 -240 1664 -448 WIRE 1824 -240 1824 -448 WIRE 112 -160 112 -736 WIRE 112 -160 0 -160 WIRE 192 -160 112 -160 WIRE 368 -160 192 -160 WIRE 784 -160 368 -160 WIRE 784 -144 784 -160 WIRE 0 -128 0 -160 WIRE 192 -96 192 -160 WIRE 720 -80 528 -80 WIRE 112 -64 112 -160 WIRE 368 -48 368 -160 WIRE 528 -48 528 -80 WIRE 0 -32 0 -48 WIRE 720 -32 720 -80 WIRE 784 -32 784 -64 WIRE 784 -32 720 -32 WIRE 928 -32 784 -32 WIRE 1024 -32 992 -32 WIRE 1072 -32 1024 -32 WIRE 1200 -32 1136 -32 WIRE 1520 -32 1200 -32 WIRE 1552 -32 1520 -32 WIRE 1664 -32 1632 -32 WIRE 1824 -32 1664 -32 WIRE 1200 0 1200 -32 WIRE 1664 32 1664 -32 WIRE 192 48 192 -16 WIRE 288 48 192 48 WIRE 752 48 608 48 WIRE 1520 48 1520 -32 WIRE 1824 48 1824 -32 WIRE 752 112 752 48 WIRE 1200 112 1200 80 WIRE 1200 112 752 112 WIRE 192 144 192 48 WIRE 1024 176 1024 -32 WIRE 1200 192 1200 112 WIRE 112 304 112 0 WIRE 192 304 192 208 WIRE 448 304 448 144 WIRE 1024 320 1024 256 WIRE 1200 320 1200 272 WIRE 1520 320 1520 112 WIRE 1664 320 1664 112 WIRE 1824 320 1824 112 FLAG 448 304 0 FLAG 1664 320 0 FLAG 1520 320 0 FLAG 1200 320 0 FLAG 1024 320 0 FLAG 192 304 0 FLAG 112 304 0 FLAG 1824 320 0 FLAG 448 -256 0 FLAG 1664 -240 0 FLAG 1520 -240 0 FLAG 1200 -240 0 FLAG 1024 -240 0 FLAG 192 -256 0 FLAG 1824 -240 0 FLAG 0 -32 0 SYMBOL voltage 0 -144 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 124 Left 2 WINDOW 3 38 76 Left 2 WINDOW 0 40 39 Left 2 SYMATTR Value 5 SYMATTR InstName V1 SYMBOL ind 768 -160 R0 WINDOW 39 35 103 Left 2 SYMATTR InstName L3 SYMATTR Value 4.7µH SYMATTR SpiceLine Rser=.1 SYMBOL res 1648 16 R0 SYMATTR InstName R5 SYMATTR Value 1000 SYMBOL cap 992 -48 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C7 SYMATTR Value 2.2µF SYMBOL schottky 1072 -16 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value MBRS130L SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 1504 48 R0 WINDOW 39 24 84 Left 2 SYMATTR InstName C8 SYMATTR Value 47µF SYMATTR SpiceLine Rser=50m SYMBOL res 1184 -16 R0 SYMATTR InstName R6 SYMATTR Value 29.4k SYMBOL res 1184 176 R0 SYMATTR InstName R7 SYMATTR Value 10k SYMBOL ind 1008 160 R0 WINDOW 39 36 108 Left 2 SYMATTR InstName L4 SYMATTR Value 4.7µH SYMATTR SpiceLine Rser=.1 SYMBOL PowerProducts\\LT1935 448 48 R0 SYMATTR InstName U2 SYMBOL res 176 -112 R0 SYMATTR InstName R8 SYMATTR Value 10k SYMBOL cap 176 144 R0 SYMATTR InstName C1 SYMATTR Value 47µF SYMBOL cap 96 -64 R0 SYMATTR InstName C2 SYMATTR Value 470µF SYMBOL load 1808 48 R0 WINDOW 123 0 0 Left 2 WINDOW 39 48 84 Left 2 SYMATTR InstName I1 SYMATTR Value PULSE(0 500mA 2ms 1u 1u 1m 2m) SYMBOL res 1536 -16 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 0.01 SYMBOL ind 768 -720 R0 WINDOW 39 39 102 Left 2 SYMATTR InstName L1 SYMATTR Value 10µH SYMATTR SpiceLine Rser=.1 SYMBOL res 1648 -544 R0 SYMATTR InstName R3 SYMATTR Value 1000 SYMBOL cap 992 -608 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 4.7µF SYMBOL schottky 1072 -576 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D6 SYMATTR Value MBRS130L SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 1504 -512 R0 SYMATTR InstName C4 SYMATTR Value 47µF SYMATTR SpiceLine Rser=50m SYMBOL res 1184 -576 R0 SYMATTR InstName R4 SYMATTR Value 29.4k SYMBOL res 1184 -384 R0 SYMATTR InstName R9 SYMATTR Value 10k SYMBOL ind 1008 -400 R0 WINDOW 39 37 103 Left 2 SYMATTR InstName L2 SYMATTR Value 10µH SYMATTR SpiceLine Rser=.1 SYMBOL PowerProducts\\LT1935 448 -512 R0 SYMATTR InstName U1 SYMBOL res 176 -672 R0 SYMATTR InstName R10 SYMATTR Value 10k SYMBOL cap 176 -416 R0 SYMATTR InstName C6 SYMATTR Value 47µF SYMBOL load 1808 -512 R0 WINDOW 123 0 0 Left 2 WINDOW 39 48 84 Left 2 SYMATTR InstName I2 SYMATTR Value PULSE(0 500mA 2ms 1u 1u 1m 2m) SYMBOL res 1536 -576 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R11 SYMATTR Value 0.01 TEXT 48 -784 Left 2 !.tran 0 4ms 0 20n