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more realistic pi filter

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This commit is contained in:
Alessandro Mauri 2026-02-14 20:33:40 +01:00
parent 10be9a03ac
commit a8eafabef6
2 changed files with 136 additions and 140 deletions
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1
sim/.gitignore vendored
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*.op.raw *.op.raw
*.net *.net
*.plt *.plt
*.fft

275
sim/pi_filter.asc
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Version 4.1 Version 4.1
SHEET 1 880 680 SHEET 1 944 708
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WIRE 752 384 656 384
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WIRE 320 512 320 480
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FLAG -192 -400 0 WIRE 160 576 160 304
WIRE 752 688 752 624
WIRE 848 688 848 624
FLAG 752 688 0
FLAG 512 -400 0
FLAG -272 -400 0
FLAG -1872 528 0 FLAG -1872 528 0
FLAG -48 512 0 FLAG 384 544 0
FLAG -400 288 0 FLAG 32 320 0
FLAG -272 624 0 FLAG 160 656 0
FLAG -1872 -160 vbus FLAG -1872 -160 vbus
FLAG -1600 -560 vbus FLAG -1600 -560 vbus
FLAG -784 -256 0
FLAG -384 -560 vmid FLAG -384 -560 vmid
FLAG -1296 -240 isense FLAG 32 224 vcc
FLAG -1376 -80 0 FLAG 848 688 0
FLAG -400 192 vcc
FLAG -1184 -352 vcc
FLAG -1248 -352 0
FLAG -1472 -256 vcc
FLAG -1472 -192 0
FLAG -1344 -368 0
FLAG 416 656 0
FLAG -1952 -16 0 FLAG -1952 -16 0
FLAG -1872 288 vdrv FLAG -1872 288 vdrv
FLAG -2000 528 0 FLAG -2000 528 0
SYMBOL nmos 272 64 R0 FLAG -784 -176 0
FLAG -1008 -64 0
SYMBOL nmos 704 96 R0
SYMATTR InstName M1 SYMATTR InstName M1
SYMATTR Value BSB012N03LX3 SYMATTR Value IRF7832
SYMBOL res 304 496 R0 SYMBOL res 736 528 R0
SYMATTR InstName R1 SYMATTR InstName R1
SYMATTR Value 2.5 SYMATTR Value 2.5
SYMBOL cap 128 -480 R0 SYMBOL cap 496 -480 R0
SYMATTR InstName C1 SYMATTR InstName C1
SYMATTR Value 44µ SYMATTR Value 44µ
SYMATTR SpiceLine Rser=5m SYMATTR SpiceLine Rser=5m
SYMBOL cap -208 -480 R0 SYMBOL cap -288 -480 R0
SYMATTR InstName C2 SYMATTR InstName C2
SYMATTR Value 44µ SYMATTR Value 44µ
SYMATTR SpiceLine Rser=5m SYMATTR SpiceLine Rser=5m
SYMBOL ind -80 -544 R270 SYMBOL ind -16 -544 R270
WINDOW 0 32 56 VTop 2 WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2 WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1 SYMATTR InstName L1
SYMATTR Value flux={L*Is}*tanh(x/{Is}) SYMATTR Value flux={L*Is}*tanh(x/{Is})
SYMATTR SpiceLine Rser=40m
SYMBOL voltage -1872 432 R0 SYMBOL voltage -1872 432 R0
WINDOW 123 0 0 Left 0 WINDOW 123 0 0 Left 0
WINDOW 39 24 44 Left 2 WINDOW 39 24 44 Left 2
SYMATTR InstName V1 SYMATTR InstName V1
SYMATTR Value PWL(0 0 1m 0 1.1m 28 10m 28 10.1m 0) SYMATTR Value PWL(0 0 1m 0 1.1m 28 10m 28 10.1m 0)
SYMBOL PowerProducts\\LTC7004 -48 320 R0 SYMBOL PowerProducts\\LTC7004 384 352 R0
SYMATTR InstName U1 SYMATTR InstName U1
SYMBOL voltage -400 192 R0 SYMBOL voltage 32 224 R0
SYMATTR InstName V2 SYMATTR InstName V2
SYMATTR Value 5 SYMATTR Value 5
SYMBOL voltage -272 528 R0 SYMBOL voltage 160 560 R0
WINDOW 123 0 0 Left 0 WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0 WINDOW 39 0 0 Left 0
SYMATTR InstName V3 SYMATTR InstName V3
SYMATTR Value PULSE(0 5 5m 100n 100n 4.5u 10u 200) SYMATTR Value PULSE(0 5 5m 100n 100n 4.5u 10u 200)
SYMBOL cap 208 240 R0 SYMBOL cap 640 272 R0
SYMATTR InstName C3 SYMATTR InstName C3
SYMATTR Value 100n SYMATTR Value 100n
SYMBOL diode -288 144 R270 SYMBOL diode 144 176 R270
WINDOW 0 32 32 VTop 2 WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2 WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1 SYMATTR InstName D1
SYMATTR Value 1N5817 SYMATTR Value 1N5817
SYMBOL pmos -704 -512 M270 SYMBOL pmos -704 -512 M270
SYMATTR InstName M2 SYMATTR InstName M2
SYMATTR Value AONS21309C SYMATTR Value RRS090P03
SYMBOL nmos -832 -352 R0
SYMATTR InstName M3
SYMATTR Value IRLR3802
SYMBOL res -896 -528 R0 SYMBOL res -896 -528 R0
SYMATTR InstName R3 SYMATTR InstName R3
SYMATTR Value 1k SYMATTR Value 1k
@ -177,26 +158,7 @@ WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2 WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2 SYMATTR InstName R2
SYMATTR Value 5m SYMATTR Value 5m
SYMBOL voltage -1376 -176 R0 SYMBOL cap 832 560 R0
SYMATTR InstName V4
SYMATTR Value 2.6
SYMBOL OpAmps\\UniversalOpAmp2 -1216 -352 R90
SYMATTR InstName U2
SYMBOL OpAmps\\UniversalOpAmp2 -1472 -224 M0
SYMATTR InstName U3
SYMBOL res -1168 -560 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL res -1248 -560 M0
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res -1360 -464 R0
SYMATTR InstName R6
SYMATTR Value 100k
SYMBOL res -1120 -464 R0
SYMATTR InstName R7
SYMATTR Value 100k
SYMBOL cap 400 528 R0
SYMATTR InstName C4 SYMATTR InstName C4
SYMATTR Value 10p SYMATTR Value 10p
SYMBOL ind -1888 -16 R0 SYMBOL ind -1888 -16 R0
@ -215,10 +177,43 @@ SYMATTR Value 20m
SYMBOL cap -2016 384 R0 SYMBOL cap -2016 384 R0
SYMATTR InstName C6 SYMATTR InstName C6
SYMATTR Value 10µ SYMATTR Value 10µ
SYMBOL res -720 -784 R90 SYMBOL cap 80 -448 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 5p
SYMBOL res 352 -576 R90
WINDOW 0 0 56 VBottom 2 WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2 WINDOW 3 32 56 VTop 2
SYMATTR InstName R10 SYMATTR InstName R11
SYMATTR Value 500 SYMATTR Value 20m
SYMBOL res 112 -736 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R12
SYMATTR Value 10Meg
SYMBOL diode -928 -432 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value UFZV15B
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -800 -400 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL npn -848 -288 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL res -864 -256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL voltage -1008 -192 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 5
TEXT -816 264 Left 2 !.tran 30m TEXT -816 264 Left 2 !.tran 30m
TEXT -144 -632 Left 2 !.param L=10u Is=7 TEXT -80 -632 Left 2 !.param L=2.2u Is=7