Help to design a PCB for my PI design!

[aft_72005]

Hi 1843,

Let me know if this is what you're looking for?
There may be errors, so please check. The usual caveats apply.

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Hi Qiaozhi
Nice PCB and had good design. What is software name that you done with it?
Best regards.

[OSTIN]

Hi 1843!

Please share the video how your detector work, if it realy work how you said - your will have a nice PCB in few days. Becouse many people and I have a big doubts that you md so good how you told.

Sorry for my eanglish!

[1843]

Hi 1843!

Please share the video how your detector work, if it realy work how you said - your will have a nice PCB in few days. Becouse many people and I have a big doubts that you md so good how you told.

Sorry for my eanglish!

Hi,

I see what you mean. You will be using this PI when it gets completed...

I am going to make a PCB by Qiaozhi's layout... I really like it.
And I no longer desier anyone else design a PCB... maybe later for their use....

Now I'm working on the software... will add an Auto-Tune to its settings.

Best regards,
1843

[okantex]

Hi 1843 ,
you have nt answer my question.
did you have any calculation about timings , is it possible to get early samples for discrimination test. does TX-off fast enough.

[Qiaozhi]

Latest Version

See attached zip file.
The following errors were corrected:

1. The missing 10K Battery Setting resistor has been added.
2. The PCB name was written as PI-110. Changed to PI-111.
3. Original schematic from 1843 showed separate grounds in use, but this was not intended. All components now use the same ground.
4. D1 changed to 1N4937.
5. Lead spacing of C1 increased to 0.3".
6. Pin B of R26 connected to -12V (battery supply).
7. Emitters of Q3, Q6 and Q8 connected to -12V.

The layout passes all DRC and continuity checks.
The board size is 4" x 3.5".

[barry]

Qiaozhi what package do you use to make the PCB layout ?

[1843]

Hi 1843 ,
you have nt answer my question.
did you have any calculation about timings , is it possible to get early samples for discrimination test. does TX-off fast enough.

Hi okantex,
Sorry... but this thread is related to PCB...
Please ask all your questions later in other threads related to PI-111.

Thanks,
1843

[Unregistered]

So you intend to start dozen of new threads relating to this ?
Super! At least good to know sad future of this, once nice forum!
Making intrigue of this funny project doesn't mean it will attract some attention here.
Whatever you do, it will stay just ordinary, poor performances pulse induction funny toy .
Just spare us of starting hundred threads more. Keep you small ideas on one place, please.
Do not polute this nice forum.

[1843]

To keep analog signal paths as short as possible, I suggust the following PCB configuration:


Best regards,
1843

[okantex]

Hi 1843 ,
I think you are sure enought that you wont need to upgrade this schematic.
otherwise you will have to wait for another pcb
take care.......

[1843]

Hi 1843 ,
I think you are sure enought that you wont need to upgrade this schematic.
otherwise you will have to wait for another pcb
take care.......

I don't want...
Just it's a suggestion to those who are interested to design a PCB.

Regards,
1843

[Qiaozhi]

Last one

IMHO I think this is now good enough to create a prototype.

Latest ECO:

1. Moved PC1 net to junction of R25 and R27.
2. Changed value of C1 on schematic to 4700uF. Value was lost during last update.
3. Recreated copper pour using thermal pads. During the last update the copper pour areas were deleted and redrawn. Some of the properties were removed during the process.
4. Moved C10 closer to PC0 on the ATMega8.
5. Decreased pin spacing on C11 and C12 to 0.2".

Given the small size of this PCB, with thick tracks and wide spacing, I would expect this layout to be relatively noise free. I do not have the time (or inclination) to drastically change the layout at this time.
Please keep us updated with your progress on this project. We will expect lots of photos and test results.

[barry]

IMHO I think this is now good enough to create a prototype.

Latest ECO:

1. Moved PC1 net to junction of R25 and R27.
2. Changed value of C1 on schematic to 4700uF. Value was lost during last update.
3. Recreated copper pour using thermal pads. During the last update the copper pour areas were deleted and redrawn. Some of the properties were removed during the process.
4. Moved C10 closer to PC0 on the ATMega8.
5. Decreased pin spacing on C11 and C12 to 0.2".

Given the small size of this PCB, with thick tracks and wide spacing, I would expect this layout to be relatively noise free. I do not have the time (or inclination) to drastically change the layout at this time.
Please keep us updated with your progress on this project. We will expect lots of photos and test results.

Qiaozhi what program did you make that layout with ?

[Qiaozhi]

Qiaozhi what program did you make that layout with ?

http://www.numberone.com/

[1843]

IMHO I think this is now good enough to create a prototype.

Please keep us updated with your progress on this project. We will expect lots of photos and test results.

Alright, ASAP I make it and test the software.(Within a few days)
Auto-tune was added successfully!

Kind regards,
1843