* SPICE netlist
L1 N007 N011 1m
R1 N014 0 22
C1 N007 N014 1m
D1 0 N007 MURS320
R2 N011 0 0.3
V1 N006 0 5
S1 N007 N006 N002 0 MYSW
V2 N002 0 PULSE(0 5 0 0.1m 0.1m 50m 100m)
L2 N009 N012 1m
D2 0 N009 MURS320
R4 N012 0 0.3
V3 N008 0 5
S2 N009 N008 N003 0 MYSW
V4 N003 0 PULSE(0 5 0 0.1m 0.1m 50m 100m)
L3 N005 N010 1m
R3 N010 0 0.3
V5 N004 0 5
S3 N005 N004 N001 0 MYSW
V6 N001 0 PULSE(0 5 0 0.1m 0.1m 50m 100m)
R5 N013 0 22
C2 N005 N013 1m
.tran 0 100m 0 0.01m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2256 656
WIRE -920 -328 -1048 -328
WIRE -56 -328 -184 -328
WIRE 824 -328 696 -328
WIRE -920 -280 -920 -328
WIRE -56 -280 -56 -328
WIRE 824 -280 824 -328
WIRE -920 -184 -920 -200
WIRE -920 -184 -1000 -184
WIRE -56 -184 -56 -200
WIRE -56 -184 -136 -184
WIRE 824 -184 824 -200
WIRE 824 -184 744 -184
WIRE -920 -168 -920 -184
WIRE -56 -168 -56 -184
WIRE 824 -168 824 -184
WIRE -1048 -72 -1048 -328
WIRE -1000 -72 -1000 -184
WIRE -184 -72 -184 -328
WIRE -136 -72 -136 -184
WIRE 696 -72 696 -328
WIRE 744 -72 744 -184
WIRE -1064 -24 -1128 -24
WIRE -776 -24 -984 -24
WIRE -616 -24 -776 -24
WIRE -200 -24 -264 -24
WIRE -24 -24 -120 -24
WIRE 72 -24 -24 -24
WIRE 248 -24 72 -24
WIRE 680 -24 616 -24
WIRE 856 -24 760 -24
WIRE 1128 -24 856 -24
WIRE -616 8 -616 -24
WIRE 248 8 248 -24
WIRE 1128 8 1128 -24
WIRE -776 40 -776 -24
WIRE 72 40 72 -24
WIRE -1128 88 -1128 -24
WIRE -264 88 -264 -24
WIRE 616 88 616 -24
WIRE -24 104 -24 -24
WIRE 856 104 856 -24
WIRE -616 136 -616 88
WIRE 248 136 248 88
WIRE 1128 136 1128 88
WIRE -776 168 -776 104
WIRE 72 168 72 104
WIRE -1128 280 -1128 168
WIRE -984 280 -1128 280
WIRE -776 280 -776 248
WIRE -776 280 -984 280
WIRE -616 280 -616 216
WIRE -616 280 -776 280
WIRE -264 280 -264 168
WIRE -120 280 -264 280
WIRE -24 280 -24 168
WIRE -24 280 -120 280
WIRE 72 280 72 248
WIRE 72 280 -24 280
WIRE 248 280 248 216
WIRE 248 280 72 280
WIRE 616 280 616 168
WIRE 760 280 616 280
WIRE 856 280 856 168
WIRE 856 280 760 280
WIRE 1128 280 1128 216
WIRE 1128 280 856 280
WIRE -984 328 -984 280
WIRE -120 328 -120 280
WIRE 760 328 760 280
FLAG -120 328 0
FLAG -56 -168 0
FLAG 760 328 0
FLAG 824 -168 0
FLAG -984 328 0
FLAG -920 -168 0
SYMBOL ind 232 -8 R0
SYMATTR InstName L1
SYMATTR Value 1m
SYMBOL res 56 152 R0
SYMATTR InstName R1
SYMATTR Value 22
SYMBOL cap 56 40 R0
SYMATTR InstName C1
SYMATTR Value 1m
SYMBOL diode -8 168 R180
SYMATTR InstName D1
SYMATTR Value MURS320
SYMBOL res 232 120 R0
SYMATTR InstName R2
SYMATTR Value 0.3
SYMBOL voltage -264 72 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL sw -104 -24 R90
SYMATTR InstName S1
SYMATTR Value MYSW
SYMBOL voltage -56 -296 R0
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0 0.1m 0.1m 50m 100m)
SYMBOL ind 1112 -8 R0
SYMATTR InstName L2
SYMATTR Value 1m
SYMBOL diode 872 168 R180
SYMATTR InstName D2
SYMATTR Value MURS320
SYMBOL res 1112 120 R0
SYMATTR InstName R4
SYMATTR Value 0.3
SYMBOL voltage 616 72 R0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL sw 776 -24 R90
SYMATTR InstName S2
SYMATTR Value MYSW
SYMBOL voltage 824 -296 R0
SYMATTR InstName V4
SYMATTR Value PULSE(0 5 0 0.1m 0.1m 50m 100m)
SYMBOL ind -632 -8 R0
SYMATTR InstName L3
SYMATTR Value 1m
SYMBOL res -632 120 R0
SYMATTR InstName R3
SYMATTR Value 0.3
SYMBOL voltage -1128 72 R0
SYMATTR InstName V5
SYMATTR Value 5
SYMBOL sw -968 -24 R90
SYMATTR InstName S3
SYMATTR Value MYSW
SYMBOL voltage -920 -296 R0
SYMATTR InstName V6
SYMATTR Value PULSE(0 5 0 0.1m 0.1m 50m 100m)
SYMBOL res -792 152 R0
SYMATTR InstName R5
SYMATTR Value 22
SYMBOL cap -792 40 R0
SYMATTR InstName C2
SYMATTR Value 1m