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Bernhard, The power rating is only used for the Bill of Material. You can ignore it as LTspice otherwise does. Note you don't have to use that editor to change the value either, just move the mouse to

Hello, Thank You very much, Helmut. Your help was helpful! I now can use the TL071-OpAmp in my circuits - perfect. But one thing astonished me: As I changed the value of a resistor, I saw that it is

Mike, I'm thankful for your promptness. This is GREAT customer service! Andrew McClelland P.S. I'm interested in integrating this with other tools like VIPEC (an S-chart analyser) or GEDA (GNU pc

Andrew, Thanks for reporting the problem. The crash mode was inadvertently introduced on Sept 15 of last year while trapping a different problem. I'll put up an update next week to take care of that

I ran a sim with start time=0 and zoomed in on a portion of the waveforms near the end of the sim. I then re-ran the sim with Tstart and Tstop specified as the beginning and end, respectively, of the

wrote: SPICE message:

Dear Mike and Helmut (and others): I've been trying to use microwave and other devices which are only expressed in s2p format, for which the company does not offer a SPICE model. I followed the Pspice

--- In LTspice@..., Panama Mike <panamatex@y...> wrote: > Norbert, > > > Please take a look at twomos.asc and twonorbs.asc, and > > how the parameterization works, and how AD is calculated

Norbert, Oh, yes, now I see what you're trying to do. Yes, the only supported way you have to scope math to an instance is with a subcircuit. (LTspice can scope math to a symbol when used to read

Mike, It does help to see the schematics! Please take a look at twomos.asc and twonorbs.asc, and how the parameterization works, and how AD is calculated as an example. In twomos.asc, the L and W of

<helmutsennewald@y...> wrote: TL071. to

Norbert, I don't think I understand. Attached is circuit that scales two mosfets by one parameter. --Mike --- snip.asc --- Version 4 SHEET 1 880 680 WIRE 32 240 112 240 WIRE 320 240 368 240 WIRE 224

which can be found in the directory C:&#92;Programme&#92;LTSpice&#92;lib&#92;sub&#92;. work. where the TL071 subcircuit is saved. But I don't know no way to define a library in a schematics file.

Hello, I have a problem with new symbol designing! I'd like to design a simple amplifier circuit with the OpAmp TL071. For that, I drawed a new symbol: TL071.asy I set the attribute "Prefix : X" I

the MOSFET"

Norbert, Yes. There's three ways to do it. i) If using the nmos4 symbol you get the "Monolithic MOSFET" dialog box. For length, type in {L}. And then place a SPICE directive on the schematic such as

If I were placing a MOSFET e.g. W=5u L=0.5u , and the length of the source and drain implants might be LS=1u LD=1u. LS,LD could be defined with a .PARAM spice directive. In some netlisters, the

Dale, I don't know that there's much published in magazines/journals. Worldwide, there's very few people who work on SPICE internals these days. Books a largely a better source. I really like the 2nd

<mrose2@a...> wrote: function models. The rise and fall times default to 0 which will cause incorrect switching when the flops are cascaded. You have to add a Trise=xx value to the flop's Spiceline.

I just wanted to pass along a little tip when using DFLOP special function models. The rise and fall times default to 0 which will cause incorrect switching when the flops are cascaded. You have to