Version 4
SHEET 1 880 680
WIRE 176 -112 64 -112
WIRE 432 -112 176 -112
WIRE 64 -80 64 -112
WIRE 432 -64 432 -112
WIRE 384 -48 288 -48
WIRE 288 -16 288 -48
WIRE 64 32 64 0
WIRE 176 64 176 -112
WIRE 144 80 -64 80
WIRE 432 80 432 32
WIRE 480 80 432 80
WIRE 288 96 288 64
WIRE 288 96 208 96
WIRE 320 96 288 96
WIRE 144 112 64 112
WIRE 288 144 288 96
WIRE 432 144 432 80
WIRE -64 160 -64 80
WIRE 64 160 64 112
WIRE -64 272 -64 240
WIRE 64 272 64 240
WIRE 64 272 -64 272
WIRE 176 272 176 128
WIRE 176 272 64 272
WIRE 288 272 288 224
WIRE 288 272 176 272
WIRE 432 272 432 224
WIRE 432 272 288 272
WIRE 432 288 432 272
FLAG 64 32 0
FLAG 480 80 out
FLAG 432 288 0
FLAG 288 -48 g1
FLAG 432 -112 VB
FLAG 320 96 op1
FLAG -64 80 in1
FLAG 64 112 in2
SYMBOL voltage -64 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -27 153 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 1m 2)
SYMBOL voltage 64 144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 1V
SYMBOL voltage 64 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 9
SYMBOL Opamps\\opamp2 176 32 R0
SYMATTR InstName U2
SYMATTR Value LM358
SYMBOL pmos 384 32 M180
SYMATTR InstName M1
SYMATTR Value IRF4905
SYMATTR Prefix X
SYMBOL Misc\\EuropeanResistor 272 128 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 416 128 R0
SYMATTR InstName RL
SYMATTR Value 10
SYMBOL Misc\\EuropeanResistor 272 -32 R0
SYMATTR InstName R2
SYMATTR Value 220
TEXT -96 352 Left 2 !.tran 0 1m 0 10u
TEXT -96 392 Left 2 !.include LM358.101
TEXT -96 432 Left 2 !.include irf4905.spi
TEXT 152 352 Left 2 ;Place a symbol "pmos" \nCtrl right mouse click on this symbol\nPrefix:MP -> Prefix:X\nValue: IRF4509\nOK