Current mirror version of the lowish distortion 1kHz sine wave osillator

"Bill Sloman" snipped-for-privacy@ieee.org wrote in message news:vm89vp$2ulja$ snipped-for-privacy@dont-email.me...

First I corrected the usual line wrap issues.

In the latest LTSpice (24.1.0) it took me a good hour or two to find out why I was getting strange netlist errors for all the opamps in the circuit.

This turned out to be .ENDS in the BAS70L model. Remove .ENDS and the issues go away.

So this is the circuit I'm simulating in 24.1.0 with no component updates available. I'm expecting it to take 2 hours to complete.

Version 4.1 SHEET 1 3608 920 WIRE -1360 -2400 -1984 -2400 WIRE -1200 -2400 -1360 -2400 WIRE -1104 -2400 -1200 -2400 WIRE -736 -2400 -1104 -2400 WIRE -320 -2400 -736 -2400 WIRE 208 -2400 -320 -2400 WIRE 336 -2400 208 -2400 WIRE 576 -2400 336 -2400 WIRE -736 -2384 -736 -2400 WIRE 208 -2384 208 -2400 WIRE -320 -2368 -320 -2400 WIRE 3376 -2272 -1616 -2272 WIRE 880 -2192 -1776 -2192 WIRE -1360 -2160 -1360 -2400 WIRE -736 -2160 -736 -2320 WIRE -656 -2160 -736 -2160 WIRE -320 -2160 -320 -2304 WIRE -176 -2160 -320 -2160 WIRE 208 -2144 208 -2320 WIRE 336 -2144 208 -2144 WIRE -1200 -2112 -1200 -2400 WIRE -1360 -2048 -1360 -2080 WIRE -320 -2000 -320 -2160 WIRE -736 -1984 -736 -2160 WIRE -1776 -1968 -1776 -2192 WIRE 336 -1968 336 -2144 WIRE 576 -1968 576 -2400 WIRE -1360 -1920 -1360 -1968 WIRE -1200 -1920 -1200 -2032 WIRE 1952 -1920 1744 -1920 WIRE 2160 -1920 1952 -1920 WIRE -1616 -1904 -1616 -2272 WIRE 1376 -1904 1072 -1904 WIRE 1536 -1904 1376 -1904 WIRE 336 -1888 336 -1904 WIRE -1280 -1872 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tol=1 SYMBOL cap -160 -1136 R0 SYMATTR InstName C1 SYMATTR Value 3.3n SYMBOL schottky 352 -1312 R0 WINDOW 3 -89 62 Left 2 WINDOW 0 -92 37 Left 2 SYMATTR Value BAS70L SYMATTR InstName D1 SYMBOL schottky 352 -1088 R0 WINDOW 3 -78 61 Left 2 WINDOW 0 -81 40 Left 2 SYMATTR Value BAS70L SYMATTR InstName D2 SYMBOL res 352 -1472 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1a SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 208 -1536 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 20k SYMATTR SpiceLine tol=1 SYMBOL res 480 -1408 R0 WINDOW 0 41 41 Left 2 WINDOW 3 34 79 Left 2 SYMATTR InstName R2a SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 560 -928 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2b SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 720 -928 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2c SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL cap 160 -960 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 3.3p SYMBOL res 48 -896 R0 WINDOW 0 39 33 Left 2 WINDOW 3 40 74 Left 2 SYMATTR InstName R1b SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL voltage -1104 -1120 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage -1104 -976 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 12 SYMBOL cap -448 -1600 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 15n SYMATTR SpiceLine V=63 Rser=4 Lser=12n SYMBOL res -448 -1568 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL cap -64 -1728 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 15n SYMATTR SpiceLine V=63 Rser=4 Lser=12n SYMBOL cap 3104 -1664 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C8 SYMATTR Value 100n SYMBOL res 2848 -1760 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R10 SYMATTR Value 82k SYMBOL cap 2784 -1120 R0 SYMATTR InstName C10 SYMATTR Value 3.3u SYMBOL cap 2912 -1552 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C11 SYMATTR Value 3.3p SYMBOL FerriteBead 576 -672 R0 SYMATTR InstName L2 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 752 -1408 R0 SYMATTR InstName C15 SYMATTR Value 100n SYMBOL cap 752 -800 R0 SYMATTR InstName C16 SYMATTR Value 100n SYMBOL FerriteBead -176 -928 R0 SYMATTR InstName L4 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -336 -2000 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C17 SYMATTR Value 100n SYMBOL cap -336 -1168 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C18 SYMATTR Value 100n SYMBOL cap 2272 -1184 R0 SYMATTR InstName C21 SYMATTR Value 100n SYMBOL FerriteBead 2288 -1408 R0 SYMATTR InstName L7 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL res -480 -1888 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R22 SYMATTR Value 2.49k SYMATTR SpiceLine tol=1 SYMBOL FerriteBead -320 -2336 R0 SYMATTR InstName L8 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -752 -1984 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C7 SYMATTR Value 100n SYMBOL FerriteBead -736 -2352 R0 SYMATTR InstName L3 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead -656 -896 R0 SYMATTR InstName L9 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -864 -1152 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C23 SYMATTR Value 100n SYMBOL res -160 -1600 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R26 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL res -768 -1808 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 4.99k SYMATTR SpiceLine tol=1 SYMBOL cap -784 -1648 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C19 SYMATTR Value 10p SYMBOL FerriteBead 208 -672 R0 SYMATTR InstName L5 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead 208 -2352 R0 SYMATTR InstName L6 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 320 -1968 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C20 SYMATTR Value 100n SYMBOL cap -96 -816 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C22 SYMATTR Value 100n SYMBOL cap -64 -1824 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 10p SYMBOL FerriteBead 576 -1936 R0 SYMATTR InstName L13 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 704 -1088 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C13 SYMATTR Value 10p SYMBOL res 2592 -1792 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 137k SYMBOL res 1376 -1776 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 14k SYMBOL res 1216 -1456 R0 SYMATTR InstName R13 SYMATTR Value 56k SYMBOL cap 1312 -1392 R0 SYMATTR InstName C3 SYMATTR Value 18n SYMBOL cap 1056 -1856 R0 SYMATTR InstName C12 SYMATTR Value 18n SYMBOL res 1216 -1568 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R14 SYMATTR Value 14k SYMBOL res 896 -1536 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R15 SYMATTR Value 18.7k SYMBOL res 2048 -1840 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R16 SYMATTR Value 14k SYMBOL cap 1728 -1872 R0 SYMATTR InstName C14 SYMATTR Value 18n SYMBOL res 1888 -1584 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R17 SYMATTR Value 14k SYMBOL res 1568 -1552 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R18 SYMATTR Value 18.7k SYMBOL res 1888 -1408 R0 SYMATTR InstName R19 SYMATTR Value 56k SYMBOL cap 1984 -1344 R0 SYMATTR InstName C24 SYMATTR Value 18n SYMBOL npn -1504 -1008 R0 SYMATTR InstName Q1 SYMATTR Value 2N5089 SYMBOL npn -1712 -1008 M0 SYMATTR InstName Q2 SYMATTR Value 2N5089 SYMBOL res 2384 -1792 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 17k SYMBOL res 2416 -1728 R0 SYMATTR InstName R28 SYMATTR Value 68k SYMBOL cap 320 -1376 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 3.3p SYMBOL res -1792 -848 R0 SYMATTR InstName R7 SYMATTR Value 68 SYMBOL pnp -1840 -1632 M180 WINDOW 3 84 0 Left 2 SYMATTR Value 2N5087 SYMATTR InstName Q3 SYMBOL res -1792 -1984 R0 SYMATTR InstName R11 SYMATTR Value 270k SYMBOL res -1632 -1920 R0 SYMATTR InstName R21 SYMATTR Value 47k SYMBOL npn -1584 -1424 R0 SYMATTR InstName Q5 SYMATTR Value 2N5089 SYMBOL npn -1296 -1424 M0 WINDOW 3 -40 125 Left 2 SYMATTR Value 2N5089 SYMATTR InstName Q6 SYMBOL pnp -1296 -1824 R180 WINDOW 3 84 0 Left 2 SYMATTR Value 2N5087 SYMATTR InstName Q7 SYMBOL pnp -1264 -1824 M180 WINDOW 0 57 29 Left 2 WINDOW 3 60 62 Left 2 SYMATTR InstName Q8 SYMATTR Value 2N5087 SYMBOL res -1056 -1360 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R23 SYMATTR Value 10k SYMATTR SpiceLine tol=1 SYMBOL schottky -1680 -1488 R0 WINDOW 3 -78 72 Left 2 WINDOW 0 -81 40 Left 2 SYMATTR Value BAS70L SYMATTR InstName D3 SYMBOL schottky -1632 -1264 R180 WINDOW 3 24 0 Left 2 WINDOW 0 24 64 Left 2 SYMATTR Value BAS70L SYMATTR InstName D4 SYMBOL res -1376 -2176 R0 SYMATTR InstName R6 SYMATTR Value 3k SYMBOL res -1216 -2128 R0 SYMATTR InstName R24 SYMATTR Value 3k SYMBOL pnp -1264 -1680 M180 WINDOW 0 57 29 Left 2 WINDOW 3 60 62 Left 2 SYMATTR InstName Q9 SYMATTR Value 2N5087 SYMBOL npn -1504 -1200 R0 SYMATTR InstName Q10 SYMATTR Value 2N5089 SYMBOL res -1376 -2064 R0 SYMATTR InstName R27 SYMATTR Value 9.1 SYMBOL res -560 -1744 R0 SYMATTR InstName R20 SYMATTR Value 100 SYMBOL res 3136 -1328 R0 SYMATTR InstName R25 SYMATTR Value 10k SYMBOL res 3136 -944 R0 SYMATTR InstName R29 SYMATTR Value 10k SYMBOL res -976 -1632 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R30 SYMATTR Value 10 SYMATTR SpiceLine tol=1 SYMBOL OpAmps\\LT1360 208 -1184 R0 SYMATTR InstName U1 SYMBOL OpAmps\\LT1115 -656 -1504 R0 SYMATTR InstName U3 SYMBOL OpAmps\\LT1115 -176 -1584 R0 SYMATTR InstName U8 SYMBOL OpAmps\\OP27 576 -1264 R0 SYMATTR InstName U2 SYMBOL OpAmps\\LT1056A 2992 -1456 R0 SYMATTR InstName U5 SYMBOL OpAmps\\LT1056A 3264 -1088 R0 SYMATTR InstName U10 SYMBOL References\\LTC6655-1.25 2560 -1120 R0 SYMATTR InstName U4 SYMBOL OpAmps\\LT1013 -1984 -1744 R0 SYMATTR InstName U9 SYMBOL OpAmps\\LT1013 1392 -1632 R0 SYMATTR InstName U6 SYMBOL OpAmps\\LT1013 2064 -1648 R0 SYMATTR InstName U7 TEXT -2232 -1200 Left 2 !.MODEL BAS70L D \n+ IS = 3.22E-9 \n+ N = 1.018 \n+ BV = 77 \n+ IBV = 1.67E-7 \n+ RS = 20.89 \n+ CJO =

Actually I was wrong about the simulation time. For 10 seconds the simulation time will be between 5 and 7 days.

Thank you for your tip to wait 2 hours for results. For what it's worth, Bill's original LTSpice source worked for me "as is."

Danke,

It did for me too, but because it looked like simulation time would be long I moved it to another machine I use over remote desktop. On that machine LTSpice asked if I'd like the latest version so I upgraded to 24.1.0. After the upgrade I got very strange netlist errors which didn't mention BAS70L and it took a while to figure out the cause.

I'm now revising the simulation time to a minimum of 4 days for 10 seconds.

"Edward Rawde" snipped-for-privacy@invalid.invalid wrote in message news:vm93ct$vf9$ snipped-for-privacy@nnrp.usenet.blueworldhosting.com...

There was a mistake in the corrected circuit I posted which was caused by me investigating why it wouldn't simulate at all in 24.1.0 U6 and U7 power was disconnected. But it still looks like 4 days for 10 seconds. The circuit below should be what Bill intended.

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WINDOW 0 43 31 Left 2 SYMATTR Value 4k02 SYMATTR InstName R2 SYMATTR SpiceLine tol=1 SYMBOL cap -160 -1136 R0 SYMATTR InstName C1 SYMATTR Value 3.3n SYMBOL schottky 352 -1312 R0 WINDOW 3 -89 62 Left 2 WINDOW 0 -92 37 Left 2 SYMATTR Value BAS70L SYMATTR InstName D1 SYMBOL schottky 352 -1088 R0 WINDOW 3 -78 61 Left 2 WINDOW 0 -81 40 Left 2 SYMATTR Value BAS70L SYMATTR InstName D2 SYMBOL res 352 -1472 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1a SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 208 -1536 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 20k SYMATTR SpiceLine tol=1 SYMBOL res 480 -1408 R0 WINDOW 0 41 41 Left 2 WINDOW 3 34 79 Left 2 SYMATTR InstName R2a SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 560 -928 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2b SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 720 -928 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR 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Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -864 -1152 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C23 SYMATTR Value 100n SYMBOL res -160 -1600 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R26 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL res -768 -1808 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 4.99k SYMATTR SpiceLine tol=1 SYMBOL cap -784 -1648 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C19 SYMATTR Value 10p SYMBOL FerriteBead 208 -672 R0 SYMATTR InstName L5 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead 208 -2352 R0 SYMATTR InstName L6 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 320 -1968 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 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SYMATTR InstName U8 SYMBOL OpAmps\\OP27 576 -1264 R0 SYMATTR InstName U2 SYMBOL OpAmps\\LT1056A 2992 -1456 R0 SYMATTR InstName U5 SYMBOL OpAmps\\LT1056A 3264 -1088 R0 SYMATTR InstName U10 SYMBOL References\\LTC6655-1.25 2560 -1120 R0 SYMATTR InstName U4 SYMBOL OpAmps\\LT1013 -1984 -1744 R0 SYMATTR InstName U9 SYMBOL OpAmps\\LT1013 1392 -1632 R0 SYMATTR InstName U6 SYMBOL OpAmps\\LT1013 2064 -1648 R0 SYMATTR InstName U7 TEXT -2232 -1200 Left 2 !.MODEL BAS70L D \n+ IS = 3.22E-9 \n+ N = 1.018 \n+ BV = 77 \n+ IBV = 1.67E-7 \n+ RS = 20.89 \n+ CJO =

My computer seems to be faster. It mostly simulates at about 25msec/sec for me so I get my 10 seconds in about seven minutes of real time. There are spots early in the process where it slows down, but not for long.

I pushed up R27 from 9.1R to 13R to make the Ic(Q6) and Ic(Q9) peak currents more nearly equal - you lose some base current in the second current mirror and R7 corrects for that.

It doesn't make much difference to the third harmonic content in the output which is still only 59 dB below the fundamental. I suppose I ought to low pass filter the current through R30 with a filter with a

The Lenovo core i7 3.6GHz with SSD I'm running it on hasn't gone above 30us/s. If your computer is 1000 times faster I'd like to have one, otherwise there's another explanation somewhere.

With an FFT from 525-536ms with Blackman-Harris window I'm seeing nearly 100dB down at 1kHz and 80dB at 2kHz. But there's also crud only 60dB down at 600kHz where crud means an almost contiuous spectrum between 500kHz and 600kHz.

My computer uses an i5-3470 CPU running at 3.20GHz. It's more than ten years old. LTSpice uses my SSD card which isn't original, so your hardware ought to be even faster.

This sounds like a typo. The fundamental is at 1kHz, and I've set up the circuit so that it is just above 0dB. The second harmonic at 2kHz is about at -80dB, but the third harmonic at 3kHz is at about -60dB. Numerical integration does produce high frequency crud - also known as rounding error and quantisation error. We'd have to build a real circuit to get a credible idea of how it performed at high frequencies, and you have to build it fairly carefully to avoid lots of crud on the supply rails, which gets everywhere.

My full-wave rectifier does do some fast switching, which could make it a noise source.

Ah yes, I meant 2kHz and 3kHz. 100dB down at 2kHz and 80dB down at 3 kHz from 754 to 778 ms, then it ran out of drive space. Crud has now moved to 1.5 MHz.

So there's some reason I don't yet understand why my simulation of the same circuit is a lot slower. Simulation of the 120dB circuit I posted some time ago completes in minutes on either 24.1.0 or earlier versions.

There was a dumb error in the original circuit. The two transistor switch (Q5 and Q6 in the original circuit) that turned the full wave rectified waveform back into a sine wave was set up with very little headroom. It didn't stop the circuit from working as intended after it had settled down, but it made start-up a bit tricky.

Here's the corrected version. It's performance isn't noticeably differ

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WINDOW 3 24 8 Left 2 SYMATTR InstName C8 SYMATTR Value 22n SYMBOL res 2848 -1760 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R10 SYMATTR Value 220k SYMBOL Opamps\\LT1056A 2992 -1456 R0 SYMATTR InstName U5 SYMBOL cap 2784 -1120 R0 SYMATTR InstName C10 SYMATTR Value 3.3µ SYMBOL cap 2912 -1552 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C11 SYMATTR Value 3.3p SYMBOL Opamps\\OP27 576 -1264 R0 SYMATTR InstName U2 SYMBOL FerriteBead 576 -672 R0 SYMATTR InstName L2 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 752 -1408 R0 SYMATTR InstName C15 SYMATTR Value 100n SYMBOL cap 752 -800 R0 SYMATTR InstName C16 SYMATTR Value 100n SYMBOL FerriteBead -176 -928 R0 SYMATTR InstName L4 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -336 -2000 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C17 SYMATTR Value 100n SYMBOL cap -336 -1168 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C18 SYMATTR Value 100n SYMBOL cap 2272 -1184 R0 SYMATTR InstName C21 SYMATTR Value 100n SYMBOL FerriteBead 2288 -1408 R0 SYMATTR InstName L7 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL res -480 -1888 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R22 SYMATTR Value 2.49k SYMATTR SpiceLine tol=1 SYMBOL FerriteBead -320 -2336 R0 SYMATTR InstName L8 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -752 -1984 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C7 SYMATTR Value 100n SYMBOL FerriteBead -736 -2352 R0 SYMATTR InstName L3 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead -656 -896 R0 SYMATTR InstName L9 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -864 -1152 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C23 SYMATTR Value 100n SYMBOL res -160 -1600 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R26 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL res -768 -1808 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 4.99k SYMATTR SpiceLine tol=1 SYMBOL cap -784 -1648 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C19 SYMATTR Value 10p SYMBOL FerriteBead 208 -672 R0 SYMATTR InstName L5 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead 208 -2352 R0 SYMATTR InstName L6 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 320 -1968 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C20 SYMATTR Value 100n SYMBOL cap -96 -816 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C22 SYMATTR Value 100n SYMBOL References\\LTC6655-1.25 2560 -1120 R0 SYMATTR InstName U4 SYMBOL cap -64 -1824 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 10p SYMBOL FerriteBead 576 -1936 R0 SYMATTR InstName L13 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 704 -1088 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C13 SYMATTR Value 10p SYMBOL res 2592 -1792 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 137k SYMBOL res 1376 -1776 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 14k SYMBOL res 1216 -1456 R0 SYMATTR InstName R13 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InstName Q8 SYMATTR Value 2N5087 SYMBOL res -448 -1328 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R23 SYMATTR Value 10k SYMATTR SpiceLine tol=1 SYMBOL res -1376 -2176 R0 SYMATTR InstName R6 SYMATTR Value 1.5k SYMBOL res -1216 -2128 R0 SYMATTR InstName R24 SYMATTR Value 1.5k SYMBOL pnp -1264 -1680 M180 WINDOW 0 57 29 Left 2 WINDOW 3 60 62 Left 2 SYMATTR InstName Q9 SYMATTR Value 2N5087 SYMBOL npn -1504 -1200 R0 SYMATTR InstName Q10 SYMATTR Value 2N5089 SYMBOL res -1376 -2064 R0 SYMATTR InstName R27 SYMATTR Value 6.2 SYMBOL Opamps\\LT1013 -1984 -1744 R0 SYMATTR InstName U9 SYMBOL res -560 -1744 R0 SYMATTR InstName R20 SYMATTR Value 120 SYMBOL Opamps\\LT1056A 3264 -1088 R0 SYMATTR InstName U10 SYMBOL res 3136 -1328 R0 SYMATTR InstName R25 SYMATTR Value 10k SYMBOL res 3136 -944 R0 SYMATTR InstName R29 SYMATTR Value 10k SYMBOL res -976 -1632 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R30 SYMATTR Value 1 SYMATTR SpiceLine tol=1 SYMBOL res -1008 -1296 R0 SYMATTR InstName R31 SYMATTR Value 20k SYMBOL res -1696 -2112 R0 SYMATTR InstName R32 SYMATTR Value 36k SYMATTR SpiceLine tol=1 SYMBOL res -1696 -1344 R0 SYMATTR InstName R33 SYMATTR Value 18k SYMBOL npn -1584 -1424 R0 SYMATTR InstName Q5 SYMATTR Value 2N5089 SYMBOL npn -1296 -1424 M0 SYMATTR InstName Q5 SYMATTR Value 2N5089 TEXT -2232 -1200 Left 2 !.MODEL BAS70L D \n+ IS = 3.22E-9 \n+ N = 1.018 \n+ BV = 77 \n+ IBV = 1.67E-7 \n+ RS = 20.89 \n+ CJO = 1.608E-12 \n+ VJ = 0.3891 \n+ M = 0.3683 \n+ FC = 0.5 \n+ EG = 0.69 \n+ XTI = 2 \n.ENDS TEXT -336 -528 Left 2 ;R2 a,b,c, Vishay Beschlag ACAS06S0830372P1AT precision 10k resistor array \n R1a, R1b Maxim MAX5492LB10000+T 10K resistive divider in a SOT-23-5 package TEXT -720 -464 Left 2 !.MODEL MMBF4391 NJF VTO=-4.6 BETA=0.02779 LAMBDA=0.00595 RD=1 RS=1 IS=1e-14 CGD=14p CGS=10.5p PB=1 B=1 KF=1e-18 AF=1 FC=0.5 mfg=Motorola TEXT -1112 -464 Left 2 !.tran 0 10s 0s startup

Fix obvious line wraps. Search for Elektronik and fix remaining line wraps. Move U1 down to connected position and connect + supply. Save File. Attempt to start simulation but get "Duplicate Q5" message. Remove Q5 and copy Q10 (it's now Q4). Save file. Start simulation and click on Vout. Note simulation speed about 20us/s (core i7 SSD). Stop simulation. Move file to other remote desktopable computer running LTSpice 24.1.0 Open schematic Attempt to run simulation but get strange errors, one for each of U1 - U10 Attempt to copy one of the errors but get unhelpful right click menu. Open log directly from file system to get exampe of error message: This sub-circuit name is not defined. X§U1 N040 N032 N005 N050 N039 LT1360 Use previous experience to fix errors in seconds (rather than hours) by editing schematic file to remove .ENDS from BAS70 line. Start simulation and click on Vout. Note simulation speed of about 25us/s Leave simulation running but expect it to run out of disk space. Go back to other work on main computer.

Check simulation at 180 ms raw file is now 32 GB FFT on a few cycles (approx 1V pk-pk) with blackman harris windows shows 80dB down at 3kHz. Stop simulation.

On 21/01/2025 2:19 am, Bill Sloman wrote:

I've taken Edward Rawles commnents to heart,but I suspect he has inadvertently corrected the circuit into something that simulates a lot slower that the circuit I'm looking at, which runs at about 30msec/sec.

I've corrected the right transistor to Q6. I've played with the text file in an attempt deal with the line feeds.

U1 is an LT1360 and Linear Technology's LTSpice should know all about that. The relevant lines in the file are

"SYMBOL Opamps\\LT1360 208 -1248 R0 SYMATTR InstName U1"

The BAS70L model file below is

TEXT -2232 -1200 Left 2 !.MODEL BAS70L D \n+ IS = 3.22E-9 \n+ N = 1.018 \n+ BV = 77 \n+ IBV = 1.67E-7 \n+ RS = 20.89 \n+ CJO = 1.608E-12 \n+ VJ = 0.3891 \n+ M = 0.3683 \n+ FC = 0.5 \n+ EG = 0.69 \n+ XTI = 2 \n.ENDS

The \n+ character string does seem to be the way WordPad deals with line wraps in the .asc file. Deleting .ENDS from the end of the model string may be one way of keepig LTSpice happy, but it probably isn't the right one.

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-992 -704 -1040 -704 WIRE -656 -704 -656 -864 WIRE -656 -704 -992 -704 WIRE -176 -704 -176 -896 WIRE -176 -704 -656 -704 WIRE -80 -704 -80 -752 WIRE 208 -704 208 -1152 WIRE 208 -704 -80 -704 WIRE 576 -704 576 -720 WIRE 208 -624 208 -640 WIRE 416 -624 208 -624 WIRE 576 -624 576 -640 WIRE 576 -624 416 -624 WIRE 2992 -624 2992 -1360 WIRE 2992 -624 576 -624 WIRE 3264 -624 3264 -992 WIRE 3264 -624 2992 -624 FLAG 464 -1152 0 FLAG -48 -1024 0 FLAG -1264 -992 0 FLAG 336 -2400 Vcc FLAG 416 -624 Vee FLAG -560 -1152 0 FLAG 16 -1520 Vout FLAG 2576 -960 0 FLAG 2432 -1456 Vcc FLAG -1040 -704 Vee FLAG -288 -1456 0 FLAG 336 -1888 0 FLAG 1376 -1904 filt1 FLAG 1648 -1648 Vcc FLAG 1632 -1456 Vee FLAG 1520 -1152 0 FLAG 1952 -1920 filter2 FLAG 2432 -1584 0 FLAG -2064 -1584 0 SYMBOL Opamps\\LT1360 208 -1248 R0 SYMATTR InstName U1 SYMBOL res 48 -1344 R0 WINDOW 0 41 37 Left 2 WINDOW 3 36 71 Left 2 SYMATTR InstName R1 SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res -64 -1152 R0 WINDOW 3 41 74 Left 2 WINDOW 0 43 31 Left 2 SYMATTR Value 4k02 SYMATTR InstName R2 SYMATTR SpiceLine tol=1 SYMBOL cap -160 -1136 R0 SYMATTR InstName C1 SYMATTR Value 3.3n SYMBOL schottky 352 -1312 R0 WINDOW 3 -89 62 Left 2 WINDOW 0 -92 37 Left 2 SYMATTR Value BAS70L SYMATTR InstName D1 SYMBOL schottky 352 -1088 R0 WINDOW 3 -78 61 Left 2 WINDOW 0 -81 40 Left 2 SYMATTR Value BAS70L SYMATTR InstName D2 SYMBOL res 352 -1472 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1a SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 208 -1536 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 20k SYMATTR SpiceLine tol=1 SYMBOL res 480 -1408 R0 WINDOW 0 41 41 Left 2 WINDOW 3 34 79 Left 2 SYMATTR InstName R2a SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 560 -928 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2b SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 720 -928 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2c SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL cap 160 -960 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 3.3p SYMBOL res 48 -896 R0 WINDOW 0 39 33 Left 2 WINDOW 3 40 74 Left 2 SYMATTR InstName R1b SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL voltage -1104 -1120 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage -1104 -976 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 12 SYMBOL cap -448 -1600 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 15n SYMATTR SpiceLine V=63 Rser=4 Lser=12n SYMBOL res -448 -1568 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL cap -64 -1728 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 15n SYMATTR SpiceLine V=63 Rser=4 Lser=12n SYMBOL cap 3104 -1664 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C8 SYMATTR Value 22n SYMBOL res 2848 -1760 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R10 SYMATTR Value 220k SYMBOL Opamps\\LT1056A 2992 -1456 R0 SYMATTR InstName U5 SYMBOL cap 2784 -1120 R0 SYMATTR InstName C10 SYMATTR Value 3.3µ SYMBOL cap 2912 -1552 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C11 SYMATTR Value 3.3p SYMBOL Opamps\\OP27 576 -1264 R0 SYMATTR InstName U2 SYMBOL FerriteBead 576 -672 R0 SYMATTR InstName L2 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 752 -1408 R0 SYMATTR InstName C15 SYMATTR Value 100n SYMBOL cap 752 -800 R0 SYMATTR InstName C16 SYMATTR Value 100n SYMBOL FerriteBead -176 -928 R0 SYMATTR InstName L4 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -336 -2000 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C17 SYMATTR Value 100n SYMBOL cap -336 -1168 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C18 SYMATTR Value 100n SYMBOL cap 2272 -1184 R0 SYMATTR InstName C21 SYMATTR Value 100n SYMBOL FerriteBead 2288 -1408 R0 SYMATTR InstName L7 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL res -480 -1888 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R22 SYMATTR Value 2.49k SYMATTR SpiceLine tol=1 SYMBOL FerriteBead -320 -2336 R0 SYMATTR InstName L8 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -752 -1984 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C7 SYMATTR Value 100n SYMBOL FerriteBead -736 -2352 R0 SYMATTR InstName L3 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead -656 -896 R0 SYMATTR InstName L9 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -864 -1152 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C23 SYMATTR Value 100n SYMBOL res -160 -1600 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R26 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL res -768 -1808 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 4.99k SYMATTR SpiceLine tol=1 SYMBOL cap -784 -1648 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C19 SYMATTR Value 10p SYMBOL FerriteBead 208 -672 R0 SYMATTR InstName L5 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead 208 -2352 R0 SYMATTR InstName L6 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 320 -1968 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C20 SYMATTR Value 100n SYMBOL cap -96 -816 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C22 SYMATTR Value 100n SYMBOL References\\LTC6655-1.25 2560 -1120 R0 SYMATTR InstName U4 SYMBOL cap -64 -1824 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 10p SYMBOL FerriteBead 576 -1936 R0 SYMATTR InstName L13 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 704 -1088 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C13 SYMATTR Value 10p SYMBOL res 2592 -1792 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 137k SYMBOL res 1376 -1776 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 14k SYMBOL res 1216 -1456 R0 SYMATTR InstName R13 SYMATTR Value 56k SYMBOL cap 1312 -1392 R0 SYMATTR InstName C3 SYMATTR Value 18n SYMBOL cap 1056 -1856 R0 SYMATTR InstName C12 SYMATTR Value 18n SYMBOL res 1216 -1568 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R14 SYMATTR Value 14k SYMBOL Opamps\\LT1013 1392 -1632 R0 SYMATTR InstName U6 SYMBOL res 896 -1536 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R15 SYMATTR Value 18.7k SYMBOL res 2048 -1840 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R16 SYMATTR Value 14k SYMBOL cap 1728 -1872 R0 SYMATTR InstName C14 SYMATTR Value 18n SYMBOL res 1888 -1584 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R17 SYMATTR Value 14k SYMBOL Opamps\\LT1013 2064 -1648 R0 SYMATTR InstName U7 SYMBOL res 1568 -1552 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R18 SYMATTR Value 18.7k SYMBOL res 1888 -1408 R0 SYMATTR InstName R19 SYMATTR Value 56k SYMBOL cap 1984 -1344 R0 SYMATTR InstName C24 SYMATTR Value 18n SYMBOL npn -1504 -1008 R0 SYMATTR InstName Q1 SYMATTR Value 2N5089 SYMBOL npn -1712 -1008 M0 SYMATTR InstName Q2 SYMATTR Value 2N5089 SYMBOL res 2384 -1792 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 17k SYMBOL res 2416 -1728 R0 SYMATTR InstName R28 SYMATTR Value 68k SYMBOL Opamps\\LT1115 -656 -1472 R0 SYMATTR InstName U3 SYMBOL Opamps\\LT1115 -176 -1584 R0 SYMATTR InstName U8 SYMBOL cap 320 -1376 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 3.3p SYMBOL res -1792 -848 R0 SYMATTR InstName R7 SYMATTR Value 68 SYMBOL pnp -1840 -1632 M180 WINDOW 3 84 0 Left 2 SYMATTR Value 2N5087 SYMATTR InstName Q3 SYMBOL res -1792 -1984 R0 SYMATTR InstName R11 SYMATTR Value 270k SYMBOL res -1632 -1920 R0 SYMATTR InstName R21 SYMATTR Value 47k SYMBOL pnp -1296 -1824 R180 WINDOW 3 84 0 Left 2 SYMATTR Value 2N5087 SYMATTR InstName Q7 SYMBOL pnp -1264 -1824 M180 WINDOW 0 57 29 Left 2 WINDOW 3 60 62 Left 2 SYMATTR InstName Q8 SYMATTR Value 2N5087 SYMBOL res -448 -1328 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R23 SYMATTR Value 10k SYMATTR SpiceLine tol=1 SYMBOL res -1376 -2176 R0 SYMATTR InstName R6 SYMATTR Value 1.5k SYMBOL res -1216 -2128 R0 SYMATTR InstName R24 SYMATTR Value 1.5k SYMBOL pnp -1264 -1680 M180 WINDOW 0 57 29 Left 2 WINDOW 3 60 62 Left 2 SYMATTR InstName Q9 SYMATTR Value 2N5087 SYMBOL npn -1504 -1200 R0 SYMATTR InstName Q10 SYMATTR Value 2N5089 SYMBOL res -1376 -2064 R0 SYMATTR InstName R27 SYMATTR Value 6.2 SYMBOL Opamps\\LT1013 -1984 -1744 R0 SYMATTR InstName U9 SYMBOL res -560 -1744 R0 SYMATTR InstName R20 SYMATTR Value 120 SYMBOL Opamps\\LT1056A 3264 -1088 R0 SYMATTR InstName U10 SYMBOL res 3136 -1328 R0 SYMATTR InstName R25 SYMATTR Value 10k SYMBOL res 3136 -944 R0 SYMATTR InstName R29 SYMATTR Value 10k SYMBOL res -976 -1632 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R30 SYMATTR Value 1 SYMATTR SpiceLine tol=1 SYMBOL res -1008 -1296 R0 SYMATTR InstName R31 SYMATTR Value 20k SYMBOL res -1696 -2112 R0 SYMATTR InstName R32 SYMATTR Value 36k SYMATTR SpiceLine tol=1 SYMBOL res -1696 -1344 R0 SYMATTR InstName R33 SYMATTR Value 18k SYMBOL npn -1584 -1424 R0 SYMATTR InstName Q5 SYMATTR Value 2N5089 SYMBOL npn -1296 -1424 M0 SYMATTR InstName Q6 SYMATTR Value 2N5089 TEXT -2232 -1200 Left 2 !.MODEL BAS70L D \n+ IS = 3.22E-9 \n+ N = 1.018 \n+ BV = 77 \n+ IBV = 1.67E-7 \n+ RS = 20.89 \n+ CJO = 1.608E-12 \n+ VJ = 0.3891 \n+ M = 0.3683 \n+ FC = 0.5 \n+ EG = 0.69 \n+ XTI = 2 \n.ENDS TEXT -336 -528 Left 2 \;R2 a,b,c, Vishay Beschlag ACAS06S0830372P1AT precision 10k resistor \n at R1a, R1b \Maxim MAX5492LB10000+T 10K resistive divider in a SOT-23-5 package TEXT -720 -464 Left 2 !.MODEL MMBF4391 NJF VTO=-4.6 BETA=0.02779 LAMBDA=0.00595 RD=1 RS=1 IS=1e-14 CGD=14p CGS=10.5p PB=1 B=1 KF=1e-18 AF=1 FC=0.5 mfg=Motorola TEXT -1112 -464 Left 2 !.tran 0 10s 0s startup

"Bill Sloman" snipped-for-privacy@ieee.org wrote in message news:vmninh$3t6oi$ snipped-for-privacy@dont-email.me...

It's been many years since I forgot that WordPad even exists. Get yourself a real editor:

Then please tell us what the right way is when you get to testing LTSpice 24.1.0

Make new folder Sloman 21 Jan 2025 Make a new text file in the folder and rename it sloman.asc Copy all relevant lines from post starting with Version 4 Open asc file with Notepad++ and paste lines. Search for Elektronik Fix 9 line wraps. Save file and attempt to open it in LTSpice 24.0.12 Get error with \n+ IS = 3.22E-9 line. Open asc file with Notepad++ Fix about 15 more line wraps with lines starting with \n and a few other lines. Note \ characters in line beginning with TEXT -336 -528 Left 2 these are not present in yesterday's file. Successfully open LTSpice to view a schematic. Note that U1 (LT1360) is displaced upwards such that the output is pointing at the centre of the letter B in the adjacent BAS70L Move U1 down so everything except + power is connected. Note that U1 + power wire ends about one resistor length above the U1 symbol. Connect U1 + power. Start simulation and click on Vout. Note simulation speed of about 20us/s

Stop simulation, Save file, Close LTSpice. Open asc file with Notepad++ Check that Word wrap is off and set EOL to Windows (CR LF). Save file. Open file with LTSpice. Schematic opens with no apparent issue and simulation runs at 20us/s. Close file. Open asc file with Notepad++. Edit, Select all, Copy. Paste into this post below. Note that \ characters in TEXT -336 -528 Left 2 line have now become \\ Examine post after sending and make another post.

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InstName R2c SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL cap 160 -960 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 3.3p SYMBOL res 48 -896 R0 WINDOW 0 39 33 Left 2 WINDOW 3 40 74 Left 2 SYMATTR InstName R1b SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL voltage -1104 -1120 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage -1104 -976 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 12 SYMBOL cap -448 -1600 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 15n SYMATTR SpiceLine V=63 Rser=4 Lser=12n SYMBOL res -448 -1568 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL cap -64 -1728 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 15n SYMATTR SpiceLine V=63 Rser=4 Lser=12n SYMBOL cap 3104 -1664 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C8 SYMATTR Value 22n SYMBOL res 2848 -1760 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R10 SYMATTR Value 220k SYMBOL Opamps\\LT1056A 2992 -1456 R0 SYMATTR InstName U5 SYMBOL cap 2784 -1120 R0 SYMATTR InstName C10 SYMATTR Value 3.3µ SYMBOL cap 2912 -1552 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C11 SYMATTR Value 3.3p SYMBOL Opamps\\OP27 576 -1264 R0 SYMATTR InstName U2 SYMBOL FerriteBead 576 -672 R0 SYMATTR InstName L2 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 752 -1408 R0 SYMATTR InstName C15 SYMATTR Value 100n SYMBOL cap 752 -800 R0 SYMATTR InstName C16 SYMATTR Value 100n SYMBOL FerriteBead -176 -928 R0 SYMATTR InstName L4 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -336 -2000 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C17 SYMATTR Value 100n SYMBOL cap -336 -1168 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C18 SYMATTR Value 100n SYMBOL cap 2272 -1184 R0 SYMATTR InstName C21 SYMATTR Value 100n SYMBOL FerriteBead 2288 -1408 R0 SYMATTR InstName L7 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL res -480 -1888 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R22 SYMATTR Value 2.49k SYMATTR SpiceLine tol=1 SYMBOL FerriteBead -320 -2336 R0 SYMATTR InstName L8 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -752 -1984 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C7 SYMATTR Value 100n SYMBOL FerriteBead -736 -2352 R0 SYMATTR InstName L3 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead -656 -896 R0 SYMATTR InstName L9 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -864 -1152 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C23 SYMATTR Value 100n SYMBOL res -160 -1600 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R26 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL res -768 -1808 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 4.99k SYMATTR SpiceLine tol=1 SYMBOL cap -784 -1648 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C19 SYMATTR Value 10p SYMBOL FerriteBead 208 -672 R0 SYMATTR InstName L5 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead 208 -2352 R0 SYMATTR InstName L6 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 320 -1968 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C20 SYMATTR Value 100n SYMBOL cap -96 -816 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C22 SYMATTR Value 100n SYMBOL References\\LTC6655-1.25 2560 -1120 R0 SYMATTR InstName U4 SYMBOL cap -64 -1824 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 10p SYMBOL FerriteBead 576 -1936 R0 SYMATTR InstName L13 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 704 -1088 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C13 SYMATTR Value 10p SYMBOL res 2592 -1792 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 137k SYMBOL res 1376 -1776 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 14k SYMBOL res 1216 -1456 R0 SYMATTR InstName R13 SYMATTR Value 56k SYMBOL cap 1312 -1392 R0 SYMATTR InstName C3 SYMATTR Value 18n SYMBOL cap 1056 -1856 R0 SYMATTR InstName C12 SYMATTR Value 18n SYMBOL res 1216 -1568 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R14 SYMATTR Value 14k SYMBOL Opamps\\LT1013 1392 -1632 R0 SYMATTR InstName U6 SYMBOL res 896 -1536 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R15 SYMATTR Value 18.7k SYMBOL res 2048 -1840 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R16 SYMATTR Value 14k SYMBOL cap 1728 -1872 R0 SYMATTR InstName C14 SYMATTR Value 18n SYMBOL res 1888 -1584 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R17 SYMATTR Value 14k SYMBOL Opamps\\LT1013 2064 -1648 R0 SYMATTR InstName U7 SYMBOL res 1568 -1552 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R18 SYMATTR Value 18.7k SYMBOL res 1888 -1408 R0 SYMATTR InstName R19 SYMATTR Value 56k SYMBOL cap 1984 -1344 R0 SYMATTR InstName C24 SYMATTR 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InstName Q8 SYMATTR Value 2N5087 SYMBOL res -448 -1328 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R23 SYMATTR Value 10k SYMATTR SpiceLine tol=1 SYMBOL res -1376 -2176 R0 SYMATTR InstName R6 SYMATTR Value 1.5k SYMBOL res -1216 -2128 R0 SYMATTR InstName R24 SYMATTR Value 1.5k SYMBOL pnp -1264 -1680 M180 WINDOW 0 57 29 Left 2 WINDOW 3 60 62 Left 2 SYMATTR InstName Q9 SYMATTR Value 2N5087 SYMBOL npn -1504 -1200 R0 SYMATTR InstName Q10 SYMATTR Value 2N5089 SYMBOL res -1376 -2064 R0 SYMATTR InstName R27 SYMATTR Value 6.2 SYMBOL Opamps\\LT1013 -1984 -1744 R0 SYMATTR InstName U9 SYMBOL res -560 -1744 R0 SYMATTR InstName R20 SYMATTR Value 120 SYMBOL Opamps\\LT1056A 3264 -1088 R0 SYMATTR InstName U10 SYMBOL res 3136 -1328 R0 SYMATTR InstName R25 SYMATTR Value 10k SYMBOL res 3136 -944 R0 SYMATTR InstName R29 SYMATTR Value 10k SYMBOL res -976 -1632 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R30 SYMATTR Value 1 SYMATTR SpiceLine tol=1 SYMBOL res -1008 -1296 R0 SYMATTR InstName R31 SYMATTR Value 20k SYMBOL res -1696 -2112 R0 SYMATTR InstName R32 SYMATTR Value 36k SYMATTR SpiceLine tol=1 SYMBOL res -1696 -1344 R0 SYMATTR InstName R33 SYMATTR Value 18k SYMBOL npn -1584 -1424 R0 SYMATTR InstName Q5 SYMATTR Value 2N5089 SYMBOL npn -1296 -1424 M0 SYMATTR InstName Q6 SYMATTR Value 2N5089 TEXT -2232 -1200 Left 2 !.MODEL BAS70L D \n+ IS = 3.22E-9 \n+ N = 1.018 \n+ BV = 77 \n+ IBV = 1.67E-7 \n+ RS = 20.89 \n+ CJO =

"Edward Rawde" snipped-for-privacy@invalid.invalid wrote in message news:vmogqg$23tl$ snipped-for-privacy@nnrp.usenet.blueworldhosting.com...

Copy text from Version 4 to end of file directly from previous post. Paste into new asc file using Notepad++ Note three line wraps near end of file with lines starting with 1.608E-12, MAX5492 and KF=1e-18 Position cursor at beginning of wrapped part and use backspace key to unwrap it. Save file with no other changes. Schematic opens in LTSpice with no issues. Start simulation and click on Vout. Note simulation speed of about 20us/s Copy file to other computer running LTSpice 24.1.0 Schematic opens without issues. Attempt to start simulation. Log file opens with errors claiming issues with U1 - U10. BAS70L is not mentioned. Close LTSpice. Edit asc file with Notepad++ to remove only .ENDS (note that includes the dot) from BAS70L line. Save file. Start simulation. Simulation runs at about 25us/s with no errors. Stop simulation. Note that log file opens claiming Simulation Failed when really it was just stopped. 24.0.12 doesn't do that. Examine schematic more closely. Find tiny extraneous piece of wire between R12/R28 and R10/C11. Remove it. Cannot find any other schematic issues. U1 and everything else looks as intended to me. Simulation still 25us/s Post schematic file below as it is now on 24.1.0

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-656 -704 -656 -864 WIRE -656 -704 -992 -704 WIRE -176 -704 -176 -896 WIRE -176 -704 -656 -704 WIRE -80 -704 -80 -752 WIRE 208 -704 208 -1152 WIRE 208 -704 -80 -704 WIRE 576 -704 576 -720 WIRE 208 -624 208 -640 WIRE 416 -624 208 -624 WIRE 576 -624 576 -640 WIRE 576 -624 416 -624 WIRE 2992 -624 2992 -1360 WIRE 2992 -624 576 -624 WIRE 3264 -624 3264 -992 WIRE 3264 -624 2992 -624 FLAG 464 -1152 0 FLAG -48 -1024 0 FLAG -1264 -992 0 FLAG 336 -2400 Vcc FLAG 416 -624 Vee FLAG -560 -1152 0 FLAG 16 -1520 Vout FLAG 2576 -960 0 FLAG 2432 -1456 Vcc FLAG -1040 -704 Vee FLAG -288 -1456 0 FLAG 336 -1888 0 FLAG 1376 -1904 filt1 FLAG 1648 -1648 Vcc FLAG 1632 -1456 Vee FLAG 1520 -1152 0 FLAG 1952 -1920 filter2 FLAG 2432 -1584 0 FLAG -2064 -1584 0 SYMBOL Opamps\\LT1360 208 -1184 R0 SYMATTR InstName U1 SYMBOL res 48 -1344 R0 WINDOW 0 41 37 Left 2 WINDOW 3 36 71 Left 2 SYMATTR InstName R1 SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res -64 -1152 R0 WINDOW 3 41 74 Left 2 WINDOW 0 43 31 Left 2 SYMATTR Value 4k02 SYMATTR InstName R2 SYMATTR SpiceLine tol=1 SYMBOL cap -160 -1136 R0 SYMATTR InstName C1 SYMATTR Value 3.3n SYMBOL schottky 352 -1312 R0 WINDOW 3 -89 62 Left 2 WINDOW 0 -92 37 Left 2 SYMATTR Value BAS70L SYMATTR InstName D1 SYMBOL schottky 352 -1088 R0 WINDOW 3 -78 61 Left 2 WINDOW 0 -81 40 Left 2 SYMATTR Value BAS70L SYMATTR InstName D2 SYMBOL res 352 -1472 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1a SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 208 -1536 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 20k SYMATTR SpiceLine tol=1 SYMBOL res 480 -1408 R0 WINDOW 0 41 41 Left 2 WINDOW 3 34 79 Left 2 SYMATTR InstName R2a SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 560 -928 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2b SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL res 720 -928 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2c SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL cap 160 -960 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 3.3p SYMBOL res 48 -896 R0 WINDOW 0 39 33 Left 2 WINDOW 3 40 74 Left 2 SYMATTR InstName R1b SYMATTR Value 10k SYMATTR SpiceLine tol=0.1 SYMBOL voltage -1104 -1120 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage -1104 -976 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 12 SYMBOL cap -448 -1600 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 15n SYMATTR SpiceLine V=63 Rser=4 Lser=12n SYMBOL res -448 -1568 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL cap -64 -1728 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 15n SYMATTR SpiceLine V=63 Rser=4 Lser=12n SYMBOL cap 3104 -1664 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C8 SYMATTR Value 22n SYMBOL res 2848 -1760 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R10 SYMATTR Value 220k SYMBOL Opamps\\LT1056A 2992 -1456 R0 SYMATTR InstName U5 SYMBOL cap 2784 -1120 R0 SYMATTR InstName C10 SYMATTR Value 3.3µ SYMBOL cap 2912 -1552 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C11 SYMATTR Value 3.3p SYMBOL Opamps\\OP27 576 -1264 R0 SYMATTR InstName U2 SYMBOL FerriteBead 576 -672 R0 SYMATTR InstName L2 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 752 -1408 R0 SYMATTR InstName C15 SYMATTR Value 100n SYMBOL cap 752 -800 R0 SYMATTR InstName C16 SYMATTR Value 100n SYMBOL FerriteBead -176 -928 R0 SYMATTR InstName L4 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -336 -2000 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C17 SYMATTR Value 100n SYMBOL cap -336 -1168 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C18 SYMATTR Value 100n SYMBOL cap 2272 -1184 R0 SYMATTR InstName C21 SYMATTR Value 100n SYMBOL FerriteBead 2288 -1408 R0 SYMATTR InstName L7 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL res -480 -1888 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R22 SYMATTR Value 2.49k SYMATTR SpiceLine tol=1 SYMBOL FerriteBead -320 -2336 R0 SYMATTR InstName L8 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -752 -1984 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C7 SYMATTR Value 100n SYMBOL FerriteBead -736 -2352 R0 SYMATTR InstName L3 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead -656 -896 R0 SYMATTR InstName L9 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap -864 -1152 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C23 SYMATTR Value 100n SYMBOL res -160 -1600 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R26 SYMATTR Value 10.7k SYMATTR SpiceLine tol=1 SYMBOL res -768 -1808 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 4.99k SYMATTR SpiceLine tol=1 SYMBOL cap -784 -1648 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C19 SYMATTR Value 10p SYMBOL FerriteBead 208 -672 R0 SYMATTR InstName L5 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL FerriteBead 208 -2352 R0 SYMATTR InstName L6 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 320 -1968 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C20 SYMATTR Value 100n SYMBOL cap -96 -816 R0 WINDOW 0 -60 15 Left 2 WINDOW 3 -62 54 Left 2 SYMATTR InstName C22 SYMATTR Value 100n SYMBOL References\\LTC6655-1.25 2560 -1120 R0 SYMATTR InstName U4 SYMBOL cap -64 -1824 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 10p SYMBOL FerriteBead 576 -1936 R0 SYMATTR InstName L13 SYMATTR Value 1000n SYMATTR SpiceLine Ipk=0.2 Rser=0.562 Rpar=750 Cpar=350f mfg="Würth Elektronik" pn="782422601 WE-CBA 0402" SYMBOL cap 704 -1088 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C13 SYMATTR Value 10p SYMBOL res 2592 -1792 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 137k SYMBOL res 1376 -1776 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 14k SYMBOL res 1216 -1456 R0 SYMATTR InstName R13 SYMATTR Value 56k SYMBOL cap 1312 -1392 R0 SYMATTR InstName C3 SYMATTR Value 18n SYMBOL cap 1056 -1856 R0 SYMATTR InstName C12 SYMATTR Value 18n SYMBOL res 1216 -1568 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R14 SYMATTR Value 14k SYMBOL Opamps\\LT1013 1392 -1632 R0 SYMATTR InstName U6 SYMBOL res 896 -1536 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R15 SYMATTR Value 18.7k SYMBOL res 2048 -1840 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R16 SYMATTR Value 14k SYMBOL cap 1728 -1872 R0 SYMATTR InstName C14 SYMATTR Value 18n SYMBOL res 1888 -1584 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R17 SYMATTR Value 14k SYMBOL Opamps\\LT1013 2064 -1648 R0 SYMATTR InstName U7 SYMBOL res 1568 -1552 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R18 SYMATTR Value 18.7k SYMBOL res 1888 -1408 R0 SYMATTR InstName R19 SYMATTR Value 56k SYMBOL cap 1984 -1344 R0 SYMATTR InstName C24 SYMATTR Value 18n SYMBOL npn -1504 -1008 R0 SYMATTR InstName Q1 SYMATTR Value 2N5089 SYMBOL npn -1712 -1008 M0 SYMATTR InstName Q2 SYMATTR Value 2N5089 SYMBOL res 2384 -1792 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 17k SYMBOL res 2416 -1728 R0 SYMATTR InstName R28 SYMATTR Value 68k SYMBOL Opamps\\LT1115 -656 -1472 R0 SYMATTR InstName U3 SYMBOL Opamps\\LT1115 -176 -1584 R0 SYMATTR InstName U8 SYMBOL cap 320 -1376 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 3.3p SYMBOL res -1792 -848 R0 SYMATTR InstName R7 SYMATTR Value 68 SYMBOL pnp -1840 -1632 M180 WINDOW 3 84 0 Left 2 SYMATTR Value 2N5087 SYMATTR InstName Q3 SYMBOL res -1792 -1984 R0 SYMATTR InstName R11 SYMATTR Value 270k SYMBOL res -1632 -1920 R0 SYMATTR InstName R21 SYMATTR Value 47k SYMBOL pnp -1296 -1824 R180 WINDOW 3 84 0 Left 2 SYMATTR Value 2N5087 SYMATTR InstName Q7 SYMBOL pnp -1264 -1824 M180 WINDOW 0 57 29 Left 2 WINDOW 3 60 62 Left 2 SYMATTR InstName Q8 SYMATTR Value 2N5087 SYMBOL res -448 -1328 R270 WINDOW 0 27 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName R23 SYMATTR Value 10k SYMATTR SpiceLine tol=1 SYMBOL res -1376 -2176 R0 SYMATTR InstName R6 SYMATTR Value 1.5k SYMBOL res -1216 -2128 R0 SYMATTR InstName R24 SYMATTR Value 1.5k SYMBOL pnp -1264 -1680 M180 WINDOW 0 57 29 Left 2 WINDOW 3 60 62 Left 2 SYMATTR InstName Q9 SYMATTR Value 2N5087 SYMBOL npn -1504 -1200 R0 SYMATTR InstName Q10 SYMATTR Value 2N5089 SYMBOL res -1376 -2064 R0 SYMATTR InstName R27 SYMATTR Value 6.2 SYMBOL Opamps\\LT1013 -1984 -1744 R0 SYMATTR InstName U9 SYMBOL res -560 -1744 R0 SYMATTR InstName R20 SYMATTR Value 120 SYMBOL Opamps\\LT1056A 3264 -1088 R0 SYMATTR InstName U10 SYMBOL res 3136 -1328 R0 SYMATTR InstName R25 SYMATTR Value 10k SYMBOL res 3136 -944 R0 SYMATTR InstName R29 SYMATTR Value 10k SYMBOL res -976 -1632 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R30 SYMATTR Value 1 SYMATTR SpiceLine tol=1 SYMBOL res -1008 -1296 R0 SYMATTR InstName R31 SYMATTR Value 20k SYMBOL res -1696 -2112 R0 SYMATTR InstName R32 SYMATTR Value 36k SYMATTR SpiceLine tol=1 SYMBOL res -1696 -1344 R0 SYMATTR InstName R33 SYMATTR Value 18k SYMBOL npn -1584 -1424 R0 SYMATTR InstName Q5 SYMATTR Value 2N5089 SYMBOL npn -1296 -1424 M0 SYMATTR InstName Q6 SYMATTR Value 2N5089 TEXT -2232 -1200 Left 2 !.MODEL BAS70L D \n+ IS = 3.22E-9 \n+ N = 1.018 \n+ BV = 77 \n+ IBV = 1.67E-7 \n+ RS = 20.89 \n+ CJO =

That circuit is of the category known as "component rich."