Version 4
SHEET 1 2804 796
WIRE 816 -400 128 -400
WIRE -128 -368 -240 -368
WIRE -240 -352 -240 -368
WIRE 128 -352 128 -400
WIRE 128 -352 32 -352
WIRE 224 -352 128 -352
WIRE 32 -272 32 -352
WIRE 32 -272 -48 -272
WIRE 160 -272 32 -272
WIRE -240 -256 -240 -272
WIRE -48 -256 -48 -272
WIRE 160 -240 160 -272
WIRE -128 -176 -128 -368
WIRE -96 -176 -128 -176
WIRE -1040 -160 -1040 -192
WIRE -896 -160 -896 -208
WIRE -240 -160 -240 -176
WIRE -48 -160 -240 -160
WIRE 160 -160 160 -176
WIRE 160 -160 -48 -160
WIRE -48 -48 -48 -160
WIRE -48 -48 -240 -48
WIRE -1040 -32 -1040 -80
WIRE -896 -32 -896 -80
WIRE 224 64 224 -352
WIRE -48 80 -48 -48
WIRE -48 384 -48 240
WIRE 112 384 -48 384
WIRE 224 384 224 128
WIRE 224 384 112 384
WIRE 112 528 112 384
WIRE 112 528 80 528
WIRE 224 528 112 528
WIRE 80 560 80 528
WIRE 224 560 224 528
WIRE -240 576 -240 -48
WIRE -112 640 -160 640
WIRE 32 640 -32 640
WIRE 176 640 176 624
WIRE -160 656 -160 640
WIRE 112 656 80 656
WIRE 224 656 224 624
WIRE 224 656 112 656
WIRE -240 736 -240 640
WIRE -160 736 -240 736
WIRE 112 736 112 656
WIRE 112 736 -160 736
WIRE 784 736 112 736
FLAG 816 -400 +V
FLAG -1040 -192 +V
FLAG -896 -208 -V
FLAG -1040 -32 0
FLAG -896 -32 0
FLAG 784 736 -V
SYMBOL ind -64 144 R0
SYMATTR InstName L
SYMATTR Value 50m
SYMBOL res -64 64 R0
SYMATTR InstName R1
SYMATTR Value 0.5
SYMBOL voltage -1040 -176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 200
SYMBOL voltage -896 -176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value -200
SYMBOL nmos 32 560 R0
WINDOW 3 50 74 Left 2
SYMATTR InstName M2
SYMATTR Value STW11NK100Z
SYMATTR Prefix X
SYMATTR SpiceLine STW11NK100Z
SYMBOL voltage -240 -272 R0
WINDOW 0 24 96 Left 2
WINDOW 3 24 124 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PWL(0 0 1m 0 1.000001m 10 1.375001m 10 1.37501m 0 2.1617m 0 repeat for 40(10n,10) (0.001m,10) (0.001010m,0) (0.1m,0) endrepeat)
SYMBOL voltage -160 640 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 12 126 Left 2
SYMATTR Value PULSE(0 30 1ms 1n 1n 5.5ms 7m)
SYMATTR InstName V4
SYMBOL res -16 624 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 50
SYMBOL zener 240 128 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMBOL zener -224 640 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMBOL diode 176 -176 R180
WINDOW 0 25 65 Left 2
WINDOW 3 -97 26 Left 2
SYMATTR InstName D3
SYMATTR Value MUR460
SYMBOL diode 240 624 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -104 32 Left 2
SYMATTR InstName D4
SYMATTR Value MUR460
SYMBOL nmos -96 -256 R0
SYMATTR InstName M1
SYMATTR Value STW11NK100Z
SYMATTR Prefix X
SYMATTR SpiceLine STW11NK100Z
SYMBOL res -256 -368 R0
SYMATTR InstName R2
SYMATTR Value 50
TEXT -768 -360 Left 2 !;step param Lx 10m 100m  10m
TEXT 368 -24 Left 2 !.tran 20ms
TEXT 368 72 Left 2 !.include diode.lib
TEXT 368 40 Left 2 !.option plotwinsize=0
TEXT 368 104 Left 2 !.op
TEXT -768 -328 Left 2 !;step temp 25 100 20
TEXT 368 -56 Left 2 !.include STW11NK100Z.lib
TEXT 368 8 Left 2 !.options gmin=1e-10