Version 4
SHEET 1 1752 680
WIRE 144 -192 128 -192
WIRE 240 -192 224 -192
WIRE 672 -144 672 -160
WIRE 128 -128 128 -192
WIRE 144 -128 128 -128
WIRE 240 -128 240 -192
WIRE 240 -128 192 -128
WIRE 240 -112 240 -128
WIRE 128 -80 0 -80
WIRE 336 -80 208 -80
WIRE 400 -80 336 -80
WIRE 528 -80 464 -80
WIRE 672 -80 528 -80
WIRE 704 -80 672 -80
WIRE 336 -16 336 -80
WIRE 0 0 0 -80
WIRE 528 0 528 -80
WIRE 672 0 672 -80
WIRE 0 128 0 80
WIRE 336 128 336 64
WIRE 336 128 0 128
WIRE 528 128 528 64
WIRE 528 128 336 128
WIRE 672 128 672 80
WIRE 672 128 528 128
WIRE 0 144 0 128
FLAG 0 144 0
FLAG 240 -112 0
FLAG 672 -144 0
FLAG 704 -80 out
IOPIN 704 -80 Out
SYMBOL Misc\\battery 0 -16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 24
SYMBOL sw 224 -80 R90
WINDOW 0 71 33 VRight 0
WINDOW 38 46 22 VRight 0
SYMATTR InstName S1
SYMATTR SpiceModel SWI
SYMATTR Value ""
SYMBOL Misc\\signal 128 -192 R270
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 76 -87 VRight 0
WINDOW 0 39 1 VRight 0
SYMATTR Value PULSE(0 25 1m 100n 100n 52u 110u)
SYMATTR InstName V2
SYMBOL ind 320 -32 R0
SYMATTR InstName L1
SYMATTR Value 1.2m
SYMATTR SpiceLine Rser=0.04
SYMBOL cap 512 0 R0
SYMATTR InstName C1
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=0.05
SYMBOL res 656 -16 R0
SYMATTR InstName RLOAD
SYMATTR Value 60
SYMBOL diode 464 -96 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D1
SYMBOL powcalc 672 -288 R0
SYMATTR InstName U1
TEXT -40 -352 Left 0 !.tran 0 40m 1u 100n steady startup
TEXT -40 -320 Left 0 !.model SWI SW(Ron=5 Roff=1G Vt=22 Vh=.4)
TEXT -32 -640 Left 0 ;Start the simulation.\n \nWatch the output until the voltage is settled.\n \nSimulate -> Efficiency Calculation -> Mark Start\nOptional: Simulate -> Efficiency Calculation -> Mark End\n \nAfter the simulation run:\nView -> Efficieny Report -> Show on Schematic