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I'd like to add a trace for the magnetic field for a coil to my waveform plotting, and not sure how to do that. I have created a parameterized "step" simulation which steps over the inductance of a

Here is how you use the time varying transformer for any two inductors.. File --->Temp--->Non_ideal_inductors.asc

http://www.allegromicro.com/en/Products/Part_Numbers/0712/0712.pdf You are in luck. Here is a subcircuit I made, but you will have to make your own symbol for it. Change the gain parameter to

For those wishing to create 'permanent' LTspice parts that appear in your drop down menu of LTspice, please reference Adding a component to LTspice - Ltwiki.org

I forgot to add.. The flux doesn't collapse instantaneously... This can be modeled by putting V(X) through an RC low pass. Cheers AG

I have modeled an ideal transformer with time varying coupling coefficient.. File is in Temp--> Non_ideal_transformer.asc

Google is your friend. Search on the phrase "spice hall effect" Howard

Another problem with the LTspice Help, is that just about everything starts with the old non-graphical input format of traditional (i.e. Berkeley) SPICE: And then we tell everyone to use the schematic

Hi, i'm looking for a hall effect current sensor like the asc712... there isn't a .lib that i could simulate?? or anything possible solution but without use a shunt resistor

Tony, LTspice can be used to model any system of ordinary (not partical) differential equations using "analog computer" techniques. The coefficients can be made time varying by using BV elements that

In message <j50avg+6kln@...>, dated Fri, 16 Sep 2011, analogspiceman <analogspiceman@...> writes: I would add a few more words. 'Open the downloaded LTspiceIV folder, open examples and

--- In LTspice@..., John Woodgate wrote: A constructive, serious answer! Thank you. > [Y]ou have initially to forget all you know about the product, > program or application and consider

In message <075FBDBF-7FC5-4AE8-921F-42D73C76DF0D@...>, dated Fri, 16 Sep 2011, Jim Wagner <wagnerj@...> writes: I found several. 'Adding attributes', 'Adding the pins' and 'Attached

In message <744FF547-789E-48F5-9AE6-A4FF04DCCB25@...>, dated Fri, 16 Sep 2011, Jim Wagner <wagnerj@...> writes: Mike obviously has a responsibility to ensure that the Help is

As far as I can see, "constructive criticism" does no good. The documentation appears to be the sole perview of Mike and it will be what he wants it to be. End of story. I have offered several

In message <j500ob+lpdp@...>, dated Fri, 16 Sep 2011, analogspiceman <analogspiceman@...> writes: It needs a complete re-write, but the necessary combination of skills is extremely rare

Agree whole-heartedly, Helmut.

Well, people keeping complaining about Help, but so far no one, including the complainers, has been willing or able to offer any concrete constructive criticism. It remains a puzzle. -- a.s.

As you have noted, K must be a fixed value. However, LTspice includes a behavioral inductor that may be a function of time. I suppose you could set up a T-network of three such inductors to vary with