Version 4
SHEET 1 984 680
WIRE 32 96 -112 96
WIRE 160 96 32 96
WIRE 256 96 160 96
WIRE 32 128 32 96
WIRE 160 128 160 96
WIRE 256 128 256 96
WIRE -112 144 -112 96
WIRE 160 240 160 208
WIRE 256 240 256 208
WIRE 256 240 160 240
WIRE -112 256 -112 224
WIRE 160 272 160 240
WIRE 32 384 32 192
WIRE 112 384 32 384
WIRE 160 384 160 352
WIRE 160 384 112 384
WIRE 32 432 32 384
WIRE 400 432 352 432
WIRE -16 448 -32 448
WIRE 352 464 352 432
WIRE 160 480 160 432
WIRE -16 496 -112 496
WIRE -112 528 -112 496
WIRE 32 560 32 512
WIRE 160 560 160 544
WIRE 352 560 352 544
WIRE -112 656 -112 608
FLAG 32 560 0
FLAG -112 256 0
FLAG -32 448 0
FLAG -112 656 0
FLAG 352 560 0
FLAG 400 432 exp_tau
FLAG 160 560 0
FLAG 112 384 vc
SYMBOL ind 144 112 R0
SYMATTR InstName L1
SYMATTR Value {L}
SYMBOL cap 16 128 R0
SYMATTR InstName C1
SYMATTR Value {C}
SYMBOL res 144 256 R0
SYMATTR InstName Rcu
SYMATTR Value {RCU}
SYMBOL res 240 112 R0
SYMATTR InstName Rfe
SYMATTR Value {RFE}
SYMBOL voltage -112 128 R0
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL sw 32 416 R0
SYMATTR InstName S1
SYMATTR Value SW1
SYMBOL voltage -112 512 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 1 0 1n 1n {TON} 1 1)
SYMBOL bv 352 448 R0
SYMATTR InstName B1
SYMATTR Value V=10+308*exp(-uramp(time-{TON})/tau)
SYMBOL diode 144 544 M180
WINDOW 0 24 72 Left 0
WINDOW 3 24 0 Left 0
SYMATTR InstName D1
TEXT -112 56 Left 0 !.model sw1 sw (Ron=1m Roff=1g vt=0.5)
TEXT -104 8 Left 0 !.tran 0 200u 0 .1u
TEXT 312 312 Left 0 !.param L=100u C=1n Rfe=10k Rcu=1 Ton=10u\n.param tau=2*(Rfe+Rcu)*L*C/(Rfe*Rcu*C+L)
TEXT 384 144 Left 0 ;Ohne Dämpfung\n---------------------------\nUmax = sqrt(L/C*I^2+U0^2)\nU0^2 << I^2*L/C\nUmax=I*sqrt(L/C)
TEXT 320 376 Left 0 ;L=100u C=1n Rfe=10k Rcu=1 Ton=10u -> tau=18.18us