Version 4
SHEET 1 932 680
WIRE -64 80 -128 80
WIRE 80 80 16 80
WIRE 576 80 160 80
WIRE 688 80 576 80
WIRE 880 80 768 80
WIRE 480 112 368 112
WIRE 368 128 368 112
WIRE 96 144 96 128
WIRE 96 144 80 144
WIRE 144 144 144 128
WIRE 160 144 144 144
WIRE 576 144 576 80
WIRE 480 160 480 112
WIRE 480 160 448 160
WIRE 528 160 480 160
WIRE 80 192 80 144
WIRE 80 192 16 192
WIRE 16 208 16 192
WIRE 80 208 80 192
WIRE 160 208 160 144
WIRE 528 240 528 208
WIRE 528 240 448 240
WIRE 880 240 880 80
WIRE 576 256 576 224
WIRE -128 272 -128 80
WIRE 576 368 576 336
WIRE -128 496 -128 352
WIRE 576 496 576 448
WIRE 576 496 -128 496
WIRE 880 496 880 320
WIRE 880 496 576 496
WIRE 576 528 576 496
FLAG 576 528 0
FLAG 16 208 0
FLAG 368 128 0
SYMBOL voltage -128 256 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 40
SYMBOL res 32 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 4
SYMBOL sw 64 80 R270
SYMATTR InstName S1
SYMATTR Value SW1
SYMBOL res 784 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 6
SYMBOL voltage 176 208 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PWL(0 0 0.0001 10)
SYMBOL sw 576 128 R0
SYMATTR InstName S2
SYMATTR Value SW2
SYMBOL res 560 240 R0
SYMATTR InstName R3
SYMATTR Value 2
SYMBOL voltage 576 352 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 10
SYMBOL ind 864 224 R0
SYMATTR InstName L1
SYMATTR Value 5
SYMBOL voltage 448 256 R180
WINDOW 0 24 96 Left 2
WINDOW 3 -98 3 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value PWL(4 0 4.00001 10)
TEXT 64 -16 Left 2 !.model SW1 SW(Ron=0.0001)
TEXT 64 -56 Left 2 !.model SW2 SW(Ron=0.0001)
TEXT -162 552 Left 2 !.tran 6