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    Closed: Re: Current increase electrolytic cell

    Analog meter has a current shunt. Often the movement is a 10K/V sensitivity and the shunt is limiting current. Anyway, you need to read the fine manual that came with it. DMM also has a current shunt...
  2. Closed: Re: How to fix Too many open files or Segmentation Fault.

    In general, earlier errors are more user-friendly than subsequent errors.

    One single error often produces a cascade; usually the first reported error needs the greatest attention.

    Sometimes if...
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    Closed: Re: public hex to asm possible to get

    It took long time because I made mistakes after mistakes. I made mistakes not because I did not know how to do but because I was not careful enough.

    I am glad that it worked. Happy coding and...
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    Closed: Re: public hex to asm possible to get

    yes, I fount the error and made changes. Here is the correct file: 156585
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    Closed: Re: public hex to asm possible to get

    You are correct; but this is a nice exercise for a beginner.

    Fortunately the code was not protected. PIC HEX files can be resistant to editing if they are code protected. However, I do not know...
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    Closed: Re: Choose a proper magnetic field sensor

    The transducer can be mounted outside the box; it is quite robust. IR sensors are modulated; just like a remote control they can work in outdoor light. Will the magnetic field sensor will work at...
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    Closed: Re: public hex to asm possible to get

    The corrected file is -- 156569

    Hope that is useful.
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    Closed: Re: public hex to asm possible to get

    Sorry, I must have made some mistake in the editing. I am outlining the steps to be followed with some screenshots.

    1. Start with the last working file, final.zip, extract it to get final.hex....
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    Closed: Re: public hex to asm possible to get

    It is my fault; I did not double check. I should have.

    Now that it is working, I can tell you how I did edit the hex file OR I can do the correction.

    I did edit the file in vim; it has context...
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    Closed: Re: public hex to asm possible to get

    Yes, I have finally modified the mw104.zip (this appears to be a newer file). The corrected file is attached here:156537

    You need to unzip and upload the final.hex - fortunately the code was not...
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    Closed: Re: public hex to asm possible to get

    The source code files you have posted are different but compiles ok.

    I shall try to edit the hex file...
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    Closed: Re: public hex to asm possible to get

    Could you try the modified file? Did it work?
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    Closed: Re: public hex to asm possible to get

    I have compiled the source file once again (the one named 020026-11.zip) and there appears to be no serious error (some warnings are there).

    Unzip the following zip file and use the hex file and...
  14. Closed: Re: Will this ceramic capacitor be damaged by overvoltage spikes?

    Even peak voltage ratings have limits: it is never specified but may be +/-5%

    Exact nature of the damage is usually not specified. Some damages are cumulative but some may recover too with time.
    ...
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    Closed: Re: public hex to asm possible to get

    I shall take a look on the first set tomorrow and let you know. If that does not work, I shall work on the second file.

    It is not really difficult. I have edited hex files in younger days.
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    [SOLVED]Closed: Re: Ohm's Law and Power calculation problem

    That is the point I am trying to convey: it is not possible to measure any quantity in ZERO time; all physical measurements take time to perform.



    No, it is still defined. Consider a sine wave...
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    Closed: Re: public hex to asm possible to get

    Could you please zip all the relevant files and put up here? One that you found working...

    Once I get it, I shall recompile, correct errors and resend back to you with modifications.
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    Closed: Re: public hex to asm possible to get

    I am puzzled; I shall compile the original and send you once again. Without any modifications: that should tell whether I have made any mistakes in compilations.
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    [SOLVED]Closed: Re: Ohm's Law and Power calculation problem

    It need not be exactly zero; in floating point asthmatics, you test for zero with a small number.



    when both current and voltage are zero, what is the calculated value of the resistance?
    ...
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    Closed: Re: public hex to asm possible to get

    Try this once again: this has been compiled fresh.

    156478

    Expand the file and try....
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    [SOLVED]Closed: Re: Ohm's Law and Power calculation problem

    What you have done is called point-wise division. This may not be same R(t)=U(t)/I(t) under some conditions. Particularly near singularities. I won't go into these details. Recall that division by...
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    Closed: Re: public hex to asm possible to get

    ok, I shall take a look once more.
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    [SOLVED]Closed: Re: Ohm's Law and Power calculation problem

    Please explain: if you are using R(t)=U(t)/I(t) to calculate the resistance, I have no problem. But the 4th graph is misleading, because you are trying to plot a point where the R becomes infinite.
    ...
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    Closed: Re: public hex to asm possible to get

    156458

    I have made some changes (only partial). OZ2CPU has been replaced by REVE FM.

    please see if this works; otherwise I might have made mistake in the manual checksum calculations.

    If it...
  25. Closed: Re: Scoping the post rectifier DC bus in a 240VAC , 100W PFC'd flyback

    If you do not mind a little heat, you can perhaps turn on (and off) the drive FET a little softly. Most of the noise (I am afraid) is coming from the hard turn on of the pass transistor. Perhaps if...
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