ltspice simulations

This commit is contained in:
Alessandro Mauri 2026-02-07 17:49:18 +01:00
parent 2e5323b88d
commit 11402e6586
6 changed files with 410 additions and 0 deletions

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doc/buck_ics.ods Normal file

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sim/.gitignore vendored Normal file
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*.raw
*.log
*.op.raw
*.net

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sim/chopper.asc Normal file
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Version 4.1
SHEET 1 880 704
WIRE -368 48 -432 48
WIRE 336 48 256 48
WIRE -368 64 -368 48
WIRE 336 64 336 48
WIRE -496 112 -864 112
WIRE -384 112 -496 112
WIRE -240 112 -288 112
WIRE -208 112 -240 112
WIRE -16 112 -128 112
WIRE 160 112 -16 112
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WIRE 96 320 -48 320
WIRE -240 352 -240 288
WIRE -560 368 -560 224
WIRE -560 368 -672 368
WIRE -48 368 -48 320
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WIRE -672 592 -672 560
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FLAG -16 272 0
FLAG 480 272 0
FLAG 160 400 0
FLAG -48 480 0
FLAG 480 112 out
FLAG -864 112 in
FLAG -16 112 mid
FLAG -496 448 0
FLAG -672 592 0
FLAG -240 352 0
SYMBOL ind -224 128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 1.5µ
SYMATTR SpiceLine Ipk=10 Rser=20m Cpar=10p
SYMBOL voltage -864 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value 28
SYMATTR SpiceLine Rser=1m
SYMBOL cap -32 176 R0
SYMATTR InstName C1
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=5m
SYMBOL pmos 416 64 R90
SYMATTR InstName M1
SYMATTR Value Si4427DY
SYMBOL res 464 144 R0
SYMATTR InstName R1
SYMATTR Value 2.5
SYMBOL voltage -48 352 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 10 0 10n 10n {ton} {t} 1k)
SYMBOL npn 96 272 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL pnp 96 128 R0
SYMATTR InstName Q2
SYMATTR Value 2N2907
SYMBOL pmos -288 64 R90
SYMATTR InstName M2
SYMATTR Value Si4427DY
SYMBOL npn -560 320 R0
SYMATTR InstName Q3
SYMATTR Value 2N2222
SYMBOL pnp -560 176 R0
SYMATTR InstName Q4
SYMATTR Value 2N2907
SYMBOL voltage -672 464 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PULSE(0 10 {twait} 100n 100n {toff} {t} 1k)
SYMBOL diode -224 288 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBR745
SYMATTR Description Diode
SYMATTR Type diode
TEXT -384 504 Left 2 !.tran 3m uic
TEXT -32 -80 Left 2 !.ic V(C1)=0 I(L1)=0
TEXT -40 552 Left 2 !.param freq=50k d=0.42
TEXT -32 584 Left 2 !.param ton={d}/{freq}
TEXT -24 616 Left 2 !.param t=1/{freq}
TEXT -32 648 Left 2 !.param toff=(((1-{d})/{freq})*0.9)
TEXT -32 688 Left 2 !.param twait={toff}-((1-{d})*t - {toff})

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sim/pi_filter.asc Normal file
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Version 4.1
SHEET 1 880 680
WIRE -128 -448 -368 -448
WIRE -80 -448 -128 -448
WIRE 32 -448 0 -448
WIRE 320 -448 32 -448
WIRE -368 -416 -368 -448
WIRE -128 -416 -128 -448
WIRE 32 -416 32 -448
WIRE 320 -352 320 -448
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WIRE 32 -336 32 -352
WIRE 128 -288 -208 -288
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WIRE -272 -224 -400 -224
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WIRE 224 -224 128 -224
WIRE -400 -208 -400 -224
WIRE 224 -176 224 -224
WIRE -192 -144 -272 -144
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WIRE 128 -112 128 -144
WIRE 160 -112 160 -272
WIRE 160 -112 128 -112
WIRE -272 -64 -272 -144
WIRE -272 -64 -784 -64
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WIRE 320 -64 224 -64
WIRE -784 -32 -784 -64
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WIRE -192 16 -224 16
WIRE 320 16 320 -64
WIRE 320 16 96 16
WIRE -224 80 -224 16
WIRE -48 80 -48 64
WIRE -48 80 -224 80
WIRE 320 80 320 16
WIRE -48 96 -48 80
WIRE 320 240 320 160
FLAG 320 240 0
FLAG 32 -336 0
FLAG -128 -336 0
FLAG -368 -336 0
FLAG -48 96 0
FLAG -400 -128 0
FLAG -784 48 0
SYMBOL nmos 272 -352 R0
SYMATTR InstName M1
SYMATTR Value BSB012N03LX3
SYMBOL res 304 64 R0
SYMATTR InstName R1
SYMATTR Value 2.5
SYMBOL cap 16 -416 R0
SYMATTR InstName C1
SYMATTR Value 44ľ
SYMATTR SpiceLine Rser=5m
SYMBOL cap -144 -416 R0
SYMATTR InstName C2
SYMATTR Value 44ľ
SYMATTR SpiceLine Rser=5m
SYMBOL ind -96 -432 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10ľ
SYMATTR SpiceLine Rser=20m
SYMBOL voltage -368 -432 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 44 Left 2
SYMATTR InstName V1
SYMATTR Value 28
SYMATTR SpiceLine Rser=1m
SYMBOL PowerProducts\\LTC7004 -48 -96 R0
SYMATTR InstName U1
SYMBOL voltage -400 -224 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage -784 -48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PULSE(0 5 0 100n 100n 4.5u 10u 1k)
SYMBOL cap 208 -176 R0
SYMATTR InstName C3
SYMATTR Value 100n
SYMBOL diode -272 -272 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMATTR Description Diode
SYMATTR Type diode
TEXT -816 264 Left 2 !.tran 30m

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Version 4.1
SHEET 1 948 1128
WIRE -336 -176 -368 -176
WIRE -208 -176 -272 -176
WIRE -160 -176 -208 -176
WIRE -32 -176 -96 -176
WIRE 160 -128 160 -224
WIRE -208 -48 -208 -176
WIRE 112 -48 16 -48
WIRE -1232 -32 -1376 -32
WIRE -1168 -32 -1232 -32
WIRE -1376 0 -1376 -32
WIRE -1232 0 -1232 -32
WIRE -368 16 -368 -176
WIRE -368 16 -432 16
WIRE -336 16 -368 16
WIRE 16 16 16 -48
WIRE 16 16 -80 16
WIRE -368 96 -368 16
WIRE -336 96 -368 96
WIRE -32 96 -32 -176
WIRE -32 96 -80 96
WIRE 160 96 160 -32
WIRE 160 96 -32 96
WIRE 240 96 160 96
WIRE 384 96 320 96
WIRE 544 96 384 96
WIRE 384 128 384 96
WIRE -1376 144 -1376 80
WIRE -1232 144 -1232 64
WIRE -1232 144 -1376 144
WIRE -1376 176 -1376 144
WIRE -336 176 -432 176
WIRE 16 176 -80 176
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WIRE 112 320 16 320
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WIRE 880 480 544 480
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WIRE -208 560 -272 560
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WIRE -32 560 -96 560
WIRE 880 560 880 480
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WIRE 880 656 880 640
WIRE -208 688 -208 560
WIRE 112 688 16 688
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WIRE -368 752 -432 752
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WIRE 16 752 16 688
WIRE 16 752 -80 752
WIRE -368 832 -368 752
WIRE -336 832 -368 832
WIRE -32 832 -32 560
WIRE -32 832 -80 832
WIRE 160 832 160 704
WIRE 160 832 -32 832
WIRE 240 832 160 832
WIRE 384 832 320 832
WIRE 544 832 544 480
WIRE 544 832 384 832
WIRE 384 864 384 832
WIRE -336 912 -432 912
WIRE 16 912 -80 912
WIRE 384 960 384 928
WIRE 160 976 160 832
WIRE -208 992 -208 976
WIRE 16 1056 16 912
WIRE 112 1056 16 1056
WIRE 160 1088 160 1072
FLAG 160 352 0
FLAG 384 224 0
FLAG -432 16 vcc
FLAG -208 256 0
FLAG 160 -224 vbus
FLAG -432 176 pwm1
FLAG 160 1088 0
FLAG 384 960 0
FLAG 160 512 vbus
FLAG 880 656 0
FLAG -1376 176 0
FLAG -1168 -32 vbus
FLAG -1376 288 vcc
FLAG -1376 368 0
FLAG -1376 608 0
FLAG -1376 848 0
FLAG -1376 528 pwm1
FLAG -1376 768 pwm2
FLAG -432 752 vcc
FLAG -208 992 0
FLAG -432 912 pwm2
FLAG 880 480 out
SYMBOL ind 224 112 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value {L}
SYMATTR SpiceLine Rser=10m
SYMBOL cap 368 128 R0
SYMATTR InstName C1
SYMATTR Value {C}
SYMATTR SpiceLine Rser=5m
SYMBOL nmos 112 -128 R0
SYMATTR InstName M1
SYMATTR Value AONP36336_Q1
SYMBOL nmos 112 240 R0
SYMATTR InstName M2
SYMATTR Value AONP36336_Q2
SYMBOL cap -96 -192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 100n
SYMBOL diode -336 -160 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 224 848 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value {L}
SYMATTR SpiceLine Rser=10m
SYMBOL cap 368 864 R0
SYMATTR InstName C3
SYMATTR Value {C}
SYMATTR SpiceLine Rser=5m
SYMBOL nmos 112 608 R0
SYMATTR InstName M3
SYMATTR Value AONP36336_Q1
SYMBOL nmos 112 976 R0
SYMATTR InstName M4
SYMATTR Value AONP36336_Q2
SYMBOL res 864 544 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL voltage -1376 -16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value 28
SYMATTR SpiceLine Rser=1m
SYMBOL cap -1248 0 R0
SYMATTR InstName C5
SYMATTR Value 10000µ
SYMBOL voltage -1376 272 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage -1376 512 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value PULSE(0 5 0 10n 10n {ton} {tsw} 1k)
SYMBOL voltage -1376 752 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value PULSE(0 5 {td} 10n 10n {ton} {tsw} 1k)
SYMBOL PowerProducts\\LTC4442 -208 96 R0
SYMATTR InstName U3
SYMBOL cap -96 544 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL diode -336 576 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL PowerProducts\\LTC4442 -208 832 R0
SYMATTR InstName U1
TEXT -1528 -264 Left 2 !.param fsw=1000k
TEXT -1528 -328 Left 2 !.param L=1u C=22u
TEXT -1296 -264 Left 2 !.param tsw=1/{fsw}
TEXT -1528 -232 Left 2 !.param d=0.32
TEXT -1296 -232 Left 2 !.param ton={tsw}*{d}
TEXT -1528 1112 Left 2 !.tran 1m
TEXT -1528 -296 Left 2 !.param trf=10n
TEXT -1528 -200 Left 2 !.param td={tsw}/2