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
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John Woodgate
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#147261
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Re: Push-Pull 3-Winding Transformer Model Acting as LPF too?
Missing: 74hc86.asy 74hc.lib Andy
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Andy I
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#147260
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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
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Dave Daniel
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#147259
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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
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Kerim
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#147257
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Re: Periodic signal from PWL file
Backus-Nauer Form! (commonly just "BNF") Donald.
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Donald H Locker
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#147256
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Re: Periodic signal from PWL file
Regular expression? ====================================================================================== Best wishes John Woodgate OOO-Own Opinions Only www.woodjohn.uk Rayleigh, Essex UK I hear,
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John Woodgate
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#147255
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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
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Donald H Locker
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#147254
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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
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Bonkers
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#147253
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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
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John Woodgate
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#147252
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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
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Andy I
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#147251
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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
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Tony Casey
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#147250
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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.
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John Woodgate
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#147249
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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
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Andy I
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#147248
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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>
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Andy I
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#147247
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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
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Bonkers
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#147246
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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
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Bonkers
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#147245
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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
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Andy I
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#147244
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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>)
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John Woodgate
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#147243
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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 (|
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Christoph
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#147242
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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
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John Woodgate
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#147241
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