Version 4
SHEET 1 1072 912
WIRE -1632 -1488 -1792 -1488
WIRE -1344 -1488 -1488 -1488
WIRE -1232 -1488 -1264 -1488
WIRE -1088 -1488 -1152 -1488
WIRE -1024 -1488 -1088 -1488
WIRE -912 -1488 -1024 -1488
WIRE -768 -1488 -912 -1488
WIRE -1024 -1456 -1024 -1488
WIRE -1792 -1440 -1792 -1488
WIRE -912 -1440 -912 -1488
WIRE -1088 -1360 -1088 -1424
WIRE -1024 -1344 -1024 -1376
WIRE -1024 -1344 -1056 -1344
WIRE -1024 -1312 -1024 -1344
WIRE -1792 -1200 -1792 -1360
WIRE -1552 -1200 -1552 -1440
WIRE -1552 -1200 -1792 -1200
WIRE -1088 -1200 -1088 -1280
WIRE -1088 -1200 -1552 -1200
WIRE -1024 -1200 -1024 -1232
WIRE -1024 -1200 -1088 -1200
WIRE -912 -1200 -912 -1360
WIRE -912 -1200 -1024 -1200
WIRE -1792 -1168 -1792 -1200
WIRE -1616 -1072 -1616 -1440
WIRE -1056 -880 -1056 -1344
WIRE -1056 -880 -1136 -880
WIRE -1200 -864 -1616 -864
WIRE -1056 -848 -1136 -848
WIRE -1056 -800 -1056 -848
WIRE -1056 -704 -1056 -720
FLAG -1792 -1168 0
FLAG -1056 -704 0
FLAG -768 -1488 out
IOPIN -768 -1488 Out
SYMBOL Misc\\PWMVM -1584 -1456 R0
SYMATTR InstName X1
SYMATTR Prefix X
SYMATTR Value PWMVM
SYMATTR SpiceLine L=75u Fs=100k
SYMBOL voltage -1792 -1456 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 38 50 Left 0
WINDOW 3 38 78 Left 0
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL res -1104 -1376 R0
WINDOW 0 -39 44 Left 0
WINDOW 3 -44 74 Left 0
SYMATTR InstName R1
SYMATTR Value 10m
SYMBOL cap -1104 -1488 R0
WINDOW 0 -47 32 Left 0
WINDOW 3 -45 64 Left 0
SYMATTR InstName C1
SYMATTR Value 220µ
SYMBOL res -1040 -1328 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL ind -1248 -1472 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L2
SYMATTR Value 75µ
SYMBOL voltage -1056 -816 R0
WINDOW 0 43 35 Left 0
WINDOW 3 43 66 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vref
SYMATTR Value 2.5
SYMBOL res -1040 -1472 R0
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL Misc\\ampsimp -1168 -864 M0
WINDOW 38 0 0 Left 0
WINDOW 3 -232 -34 Left 0
WINDOW 39 -653 -1 Left 0
SYMATTR SpiceModel ""
SYMATTR Value AMPSIMP
SYMATTR InstName U1
SYMATTR SpiceLine POLE=30 GAIN=30000 VHIGH=4V VLOW=100mV
SYMBOL res -1360 -1472 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R5
SYMATTR Value 100m
SYMBOL res -928 -1456 R0
SYMATTR InstName R4
SYMATTR Value 2.5
SYMBOL Misc\\Gain -1616 -944 R270
WINDOW 39 92 26 VRight 0
SYMATTR SpiceLine GAIN=.5
SYMATTR InstName X2
TEXT -1368 -1104 Left 0 !.ac dec 20 10 1000000
TEXT -1368 -1136 Left 0 !;tran 0 20m 1u
TEXT -1368 -1072 Left 0 !.include limit.sub\n.include limit2.sub\n.include gain.sub\n.include pwmvm.sub\n.include ampsimp.sub
TEXT -1520 -1416 Left 0 ;Fs=100k\nL=75u