Version 4 SHEET 1 1000 680 WIRE 384 -176 384 -192 WIRE 432 -176 384 -176 WIRE 432 -144 432 -176 WIRE 304 -112 304 -192 WIRE 384 -112 384 -176 WIRE 384 -112 352 -112 WIRE 112 -64 96 -64 WIRE 288 -64 112 -64 WIRE 528 -64 368 -64 WIRE 608 -64 528 -64 WIRE 800 -64 688 -64 WIRE 880 -64 800 -64 WIRE 944 -64 880 -64 WIRE 96 48 96 -64 WIRE 800 48 800 -64 WIRE 944 48 944 -64 WIRE 528 64 528 -64 WIRE 96 192 96 128 WIRE 528 192 528 128 WIRE 528 192 96 192 WIRE 800 192 800 112 WIRE 800 192 528 192 WIRE 944 192 944 128 WIRE 944 192 800 192 WIRE 96 256 96 192 FLAG 432 -144 0 FLAG 96 256 0 FLAG 112 -64 in FLAG 880 -64 out SYMBOL voltage 96 32 R0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage 288 -192 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 99 80 VBottom 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 5 0 0 0 0.015m 0.020m) SYMBOL sw 384 -64 R90 SYMATTR InstName S1 SYMBOL diode 544 128 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMBOL ind 592 -48 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 0.056mH SYMBOL cap 784 48 R0 SYMATTR InstName C1 SYMATTR Value 0.022mF SYMBOL res 928 32 R0 SYMATTR InstName R1 SYMATTR Value 18 TEXT 280 240 Left 2 !.Model SW SW(Ron=0.001, Roff=100Meg, Von=5V, Voff=0V) TEXT 62 280 Left 2 !.tran 0 10ms 0