Version 4
SHEET 1 880 680
WIRE 304 -880 -1344 -880
WIRE 304 -672 304 -880
WIRE -864 -592 -992 -592
WIRE -720 -592 -800 -592
WIRE -592 -592 -640 -592
WIRE -176 -592 -592 -592
WIRE 16 -592 -96 -592
WIRE 64 -592 16 -592
WIRE 128 -592 64 -592
WIRE 256 -592 208 -592
WIRE -1344 -544 -1344 -880
WIRE -992 -544 -992 -592
WIRE -592 -512 -592 -592
WIRE -480 -512 -592 -512
WIRE -224 -512 -400 -512
WIRE 64 -512 64 -592
WIRE -592 -480 -592 -512
WIRE -224 -480 -224 -512
WIRE -1344 -368 -1344 -464
WIRE -992 -368 -992 -464
WIRE -992 -368 -1344 -368
WIRE -656 -368 -992 -368
WIRE -592 -368 -592 -416
WIRE -592 -368 -656 -368
WIRE -224 -368 -224 -400
WIRE -224 -368 -592 -368
WIRE 64 -368 64 -448
WIRE 64 -368 -224 -368
WIRE 304 -368 304 -576
WIRE 304 -368 64 -368
WIRE -656 -256 -656 -368
FLAG -656 -256 0
FLAG 16 -592 gm3
SYMBOL nmos 256 -672 R0
SYMATTR InstName M2
SYMATTR Value STP8NM60
SYMBOL zener 80 -448 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -114 2 Left 2
SYMATTR InstName D9
SYMATTR Value BZX84C12L
SYMBOL Misc\\EuropeanResistor -80 -608 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 68K
SYMBOL Misc\\EuropeanResistor -384 -528 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 220K
SYMBOL cap -608 -480 R0
SYMATTR InstName C4
SYMATTR Value 220n
SYMBOL voltage -1344 -560 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=47K
SYMATTR InstName V2
SYMATTR Value 350
SYMBOL Misc\\EuropeanResistor 112 -608 M90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 15
SYMBOL voltage -992 -560 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(0 28 0 10µ 10µ 0.1 0.2 1)
SYMBOL Misc\\EuropeanResistor -624 -608 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL diode -864 -576 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMBOL voltage -224 -384 R180
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 0.5
TEXT -1360 -232 Left 2 !.tran 0 0.5 0.1
TEXT 128 -656 Left 2 ;IPA60R190
TEXT 176 -424 Left 2 ;1N4743
TEXT -80 -656 Left 2 ;BC337-25