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View Poll Results: Whatís the most important thing to you?
Lowest possible cost 3 23.08%
Make it as small and light as possible 6 46.15%
Battery longevity is very important 3 23.08%
Highest power possible 3 23.08%
Highest RPM possible 2 15.38%
Only use through hole construction 2 15.38%
No winding of transformers 4 30.77%
Group buy of components including boards 0 0%
Group buy of boards only 1 7.69%
Iíd rather buy a kit with everything in it 0 0%
I want to buy a pre-built & pre-programmed system 0 0%
I only want to use a 4.8v Ni-MH battery 2 15.38%
I only want to use a 2S battery 1 7.69%
I only want to use a 3S battery 1 7.69%
I want to use a 4.8v battery to 3S battery 5 38.46%
I want to use only off the shelf parts from Digi-Key or Mouser 3 23.08%
I want the Timer board to be separate from the HV board 6 46.15%
I want a combination Timer & HV board 1 7.69%
I want all the options possible using jumpers 3 23.08%
I want a USB connection 2 15.38%
I want a serial connection (DB9) and Iíll use my own USB adapter 3 23.08%
I want a ICSP connection 3 23.08%
I want a premade parts list (BOM) at Digi-Key 2 15.38%
I want a premade project parts list (BOM) at Mouser 1 7.69%
I want 1 design and 1 design only 1 7.69%
I want optional designs to choose from and Ill make the boards myself 8 61.54%
Multiple Choice Poll. Voters: 13. You may not vote on this poll

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Old Dec 30, 2012, 08:23 PM
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Above install would not work so removed Mplab v1.10 and re-installed v 1.41.

It comes up with errors everywhere when one loads a C code in new projects but at least I can get a hex file out of it.

Hope the hex is ok, no way of knowing really.

I think the mplab is just a shoddy system, maybe look for some other compiler.

Just waste too much time on things that should work.
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Old Jan 01, 2013, 01:12 PM
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I think if you copy your source code into the projects directory and right click on the directory it should then show the source files available. Then by clicking on the source file it should load it without a problem. At least that's how I've been doing it. After it is loaded, you just click the hammer symbol to do the build. It will display some cautions and suggestions but ignore those. Do the build, then Find the hex it made. Should work, since that is what I've been doing and was successful.

John
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Old Jan 01, 2013, 01:53 PM
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Canada, MB, Winnipeg
Joined Nov 2011
316 Posts
Lastest Spreadsheet Fixes

John (gr8flyer55), Guys, people I have uploaded the lastest fixed spreadsheets. Please see Post #4
for the lastest versions. John and I checked it and it is now copying the values correctly to the Code and Tables sheets.


Ray
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Old Jan 01, 2013, 03:10 PM
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Have fun.
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Last edited by Gompy; May 05, 2013 at 05:03 PM.
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Old Jan 01, 2013, 03:26 PM
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Quote:
Originally Posted by Gompy View Post
Please use the right hardware.
Where can I get the correct ones?

Ray

Never mind Rob I figured it out.
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Last edited by Nav_Aids; Jan 01, 2013 at 04:40 PM.
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Old Jan 01, 2013, 04:31 PM
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I have seen this output transistor configuration before to try to get output inversion, and I think it could be a problem.

Connected as common emitter is fine, i.e. with R12 zero and R11 as 1K.

However, when you make R11 zero and R12 as 1K, it becomes a common collector configuration. In this mode, as the base starts to conduct, it causes the emitter voltage to rise and thus , turn off the transistor again. I think you may have problems getting it to saturate under this mode.
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Old Jan 01, 2013, 04:42 PM
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Quote:
Originally Posted by gr8flyer55 View Post
I think if you copy your source code into the projects directory and right click on the directory it should then show the source files available. Then by clicking on the source file it should load it without a problem. At least that's how I've been doing it. After it is loaded, you just click the hammer symbol to do the build. It will display some cautions and suggestions but ignore those. Do the build, then Find the hex it made. Should work, since that is what I've been doing and was successful.

John
Yes,well, it's the installation errors that come up when getting near the end of the compiler install that concern me. Primarily because it states that the compiler may not work properly as it failed some test or other.

I think I will wait until Microchip supply some answers.
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Old Jan 01, 2013, 04:49 PM
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Quote:
Originally Posted by bluejets View Post
I have seen this output transistor configuration before to try to get output inversion, and I think it could be a problem.

Connected as common emitter is fine, i.e. with R12 zero and R11 as 1K.

However, when you make R11 zero and R12 as 1K, it becomes a common collector configuration. In this mode, as the base starts to conduct, it causes the emitter voltage to rise and thus , turn off the transistor again. I think you may have problems getting it to saturate under this mode.
If R11 is 1k and R12 is 0 then the output is inverse to the input, sort of like an amplifier circuit. If R11 is 0 and R12 is 1k then this is an emitter follower and the output signal is in step with the input signal minus the biasing voltage. I'm being very simple about this because you can get into bypass caps and such but, thats for another time.

Ray
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Old Jan 01, 2013, 05:10 PM
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I'm pretty sure that's what I just said, but you miss the most important point.
Look again.
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Old Jan 01, 2013, 09:40 PM
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Quote:
Originally Posted by bluejets View Post
I'm pretty sure that's what I just said, but you miss the most important point.
Look again.
What, saturation, the BC547, has a Vbe(sat) of just 0.7 volts and a max V(BR)EBO of just 6 volts and most raings given are at 5 volts.

Besides, I believe I used the wrong version because Gompy now uses a 4N25 opto there, I have to change the schematic.

Ray
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Old Jan 02, 2013, 02:47 AM
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You have no idea what I'm talking about.

I'll round up some theory for you to read.
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Old Jan 02, 2013, 04:40 AM
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Hi bluejets
Thanks for your reply to my post #83. OK about the limitations of the 628A. This is my first attempt so hope to make progress. The 628a version appeared promising as it looked easy to change the curve. My requirement is for up to 6000 rpm. I'll be looking at the links you provided and ito alternative circuits.
cheers
Don m5aky
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Old Jan 02, 2013, 06:41 AM
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Quote:
Originally Posted by bluejets View Post
You have no idea what I'm talking about.

I'll round up some theory for you to read.
That would be nice.

Ray
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Old Jan 02, 2013, 07:27 AM
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Quote:
Originally Posted by Gompy View Post
Please use the right hardware.
Gompy I put up the latest Timer board design I could find, post #4. I hope I got it right this time.

Ray
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Old Jan 08, 2013, 02:22 PM
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Update
New spreadsheet versions posted on the website!
http://www.electrofunnel.com/CDI-2012/index.htm

A big thanks goes out to Ray Richter (Nav_Aids) for creating these versions!

Ray created these versions to fix a number of bugs in my spreadsheets. The v1.0 spreadsheets work great for me, running Excel 2007, on Windows XP SP3. However, it seems that several bugs crop up when using different Excel versions, and/or OS versions, and/or VB runtimes, and/or .Net framework versions. I have no way to test all these configurations, and I certainly can't fix all of Micro$oft's bugs, so Ray's mastery of VBA and Excel macros, and knowledge of the many version compatibility problems, have really helped the project. All future spreadsheets will be based off of these.

I suggest downloading the v1.0 release .zip file, then replacing the spreadsheet contained in them with Ray's new version. The old v1.0 release file will remain on the website for historical reasons and because I'm too busy (and lazy) to mess with it. If anyone needs or wants any of the old, pre-v1.0 code versions feel free to email or PM me. (my email is on the website)


-Jake
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