Version 4
SHEET 1 1456 680
WIRE -48 112 -256 112
WIRE 96 112 -48 112
WIRE 288 112 192 112
WIRE -256 144 -256 112
WIRE 288 176 288 112
WIRE -48 208 -48 192
WIRE 112 208 112 160
WIRE 112 208 -48 208
WIRE -48 224 -48 208
WIRE -256 448 -256 224
WIRE -48 448 -48 416
WIRE -48 448 -256 448
WIRE 288 448 288 256
WIRE 288 448 -48 448
WIRE -256 464 -256 448
FLAG -256 464 0
SYMBOL voltage -256 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 2.2 25m 1.7)
SYMBOL diode -64 224 R0
WINDOW 3 45 29 Left 2
SYMATTR Value 1N4148
SYMATTR InstName D1
SYMBOL res -64 96 R0
SYMATTR InstName R1
SYMATTR Value {50k * a}
SYMBOL res 272 160 R0
SYMATTR InstName R2
SYMATTR Value 150
SYMBOL diode -64 288 R0
WINDOW 3 45 28 Left 2
SYMATTR Value 1N4148
SYMATTR InstName D2
SYMBOL AO3415 192 160 M270
WINDOW 3 69 21 Left 2
WINDOW 0 69 59 Left 2
SYMATTR InstName M1
SYMBOL diode -64 352 R0
WINDOW 3 45 33 Left 2
SYMATTR InstName D3
SYMATTR Value 1N4148
TEXT -200 496 Left 2 !.tran 25m startup
TEXT 48 496 Left 2 !.step param a 1 10 1
TEXT 312 496 Left 2 !.inc AO3415.mod