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Date
Re: Push-Pull 3-Winding Transformer Model Acting as LPF too?
Present: far too much stuff not relevant to the question of the transformer acting as a low-pass filter. Kerim, if you accept that a two-winding transformer acts as a low-pass filter, you should be
By John Woodgate · #147261 ·
Re: Push-Pull 3-Winding Transformer Model Acting as LPF too?
Missing: 74hc86.asy 74hc.lib Andy
By Andy I · #147260 ·
Re: Periodic signal from PWL file
Whoa. I haven't seen of seen BNF for several decades (I think the last I saw it was sgen learnjng Modula-2). DaveD
By Dave Daniel · #147259 ·
Push-Pull 3-Winding Transformer Model Acting as LPF too?
Hello, Please find the uploaded two schematics in ¡®PureSineInv.zip¡¯: [1] Sinewave inverter using a bridge to drive a two-winding linear transformer with no load and whose model include somehow its
By Kerim · #147257 ·
Re: Periodic signal from PWL file
Backus-Nauer Form! (commonly just "BNF") Donald.
By Donald H Locker · #147256 ·
Re: Periodic signal from PWL file
Regular expression? ====================================================================================== Best wishes John Woodgate OOO-Own Opinions Only www.woodjohn.uk Rayleigh, Essex UK I hear,
By John Woodgate · #147255 ·
Re: Periodic signal from PWL file
That is a "logical OR" separating two optional forms of the command or of a command's parameters. There is a formal mechanism for language specification (whose name I can't remember despite using is
By Donald H Locker · #147254 ·
Re: PWL sources (was but not related to: "Discrete data points in plot view")
Further to Tony's point above: There is no "Dirac" function in LTSpice, that defines a value at one infinitesimal time. You need a slew-up time, a hold time, and a slew-down time - and three voltage
By Bonkers · #147253 ·
Re: Periodic signal from PWL file
Thanks, Andy. I missed out on the computer world from 1958 to the BBC Micro. ====================================================================================== Best wishes John Woodgate OOO-Own
By John Woodgate · #147252 ·
Re: Periodic signal from PWL file
John asked, " What do you understand 'file spec' to mean? Is it another term for 'filename'? " Almost yes.? That is commonly what "file spec" (or "filespec") means, except that a filespec may include
By Andy I · #147251 ·
PWL sources (was but not related to: "Discrete data points in plot view")
The clue is in the name: Piece-Wise-Linear. In the waveform viewer, all the points are connected by straight lines. If you want impulses, you will have to create them. But zero width impulses don't
By Tony Casey · #147250 ·
Re: Periodic signal from PWL file
What do you understand 'file spec' to mean? Is it another term for 'filename'? It would be best to have uniform terminology.
By John Woodgate · #147249 ·
Discrete data points in plot view
Christoph, For time-domain and frequency-domain plots, I think LTspice only connects the dots with lines or curves.? I think there is no other option. I have seen .STEPped simulations where LTspice's
By Andy I · #147248 ·
Re: Periodic signal from PWL file
Here is my best guess. I think "analog spiceman" authored that information about the REPEAT ... ENDREPEAT syntax.? Maybe he meant to write it like this: ... PWL REPEAT FOR <n> ( <t1> <v1> ... <tn>
By Andy I · #147247 ·
Re: PWL sources (was but not related to: "Discrete data points in plot view")
The PWL function can be repeated, http://www.simonbramble.co.uk/lt_spice/ltspice_lt_spice_tutorial_5.htm I'd advise that you read all the tutorials from Simon Bramble. If you're making custom PWL
By Bonkers · #147246 ·
PWL sources (was but not related to: "Discrete data points in plot view")
Hi Christoph, Firstly, you can easily repeat cycles of your 32 points, even just using Notepad, if you adopt the +xxx option for the timestamp (relative timing). Secondly, PWL means it is linearly
By Bonkers · #147245 ·
Re: Periodic signal from PWL file
Christoph, I do not remember ever seeing the "|" (pipe) character used in this way before with LTspice.? I don't know whether that was a typo, or if it actually worked at one point in LTspice's
By Andy I · #147244 ·
Re: Periodic signal from PWL file
There seems to be a subtle difference: /A list of data points or a file reference can be repeated a fixed amount of times <n>, or forever// // //PWL REPEAT FOR <n> (|<file spec>)
By John Woodgate · #147243 ·
Re: Periodic signal from PWL file
Fine so far, but using the | (vertical bar) gives an error. PWL REPEAT FOREVER (file=Z:\Users\kuku\Documents\LTspiceXVII\pulses.txt) ENDREPEAT works, while PWL REPEAT FOREVER (|
By Christoph · #147242 ·
Re: Discrete data points in plot view
I think you have to export the data to Excel or similar to plot in those ways. ====================================================================================== Best wishes John Woodgate OOO-Own
By John Woodgate · #147241 ·