Comments on: 0-24VDC Digital PIC Power Supply

By: vvv

vvv — Tue, 16 Jun 2020 19:29:59 +0000

Excellent project, works perfectly well. But there were 3 problems with the original hex file.
1. It did not work, so I recompiled it with the last CCS compiler.
2. The connections of voltage bottons were confused with the current ones.
3. Eeprom memory did not work because the program to save int16 directly to eeprom.
So, I corrected all those small bags and the power supply started to work as expected.

By: Julio CÃ©sar Souza

Julio CÃ©sar Souza — Sun, 26 Jun 2016 18:36:14 +0000

quem colocou este projeto aqui nÃ£o quer que ninguÃ©m monte pois nÃ£o tem o HEX do PIC, este circuito Ã© uma fria montar, deveria haver um pouco mais de sensibilidade de um autor desses, o arquivo comprimido tambÃ©m nÃ£o tem o HEX, UMA PENA !!!
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By: Paulo Malta

Paulo Malta — Thu, 07 Apr 2016 14:44:01 +0000

Very cool this project.
Where I can download files – sch, pcb and PIC firmware – for this project?

By: ??????????

?????????? — Tue, 07 Jul 2015 10:01:11 +0000

Heya i’m for the first time here. I came across this board and I in finding It really helpful & it helped me out a lot.
I am hoping to present one thing back and aid others such as you helped me.

By: Ray Drury

Ray Drury — Fri, 04 May 2012 17:23:41 +0000

Can anyone help? I have built the circuit board and populated as per the list above. I had a specialist transformer made which includes the 24V supply and the 6.3 V supply rail.
When populated with the ICs it does not output any voltage but with IC3 removed the output voltage is the rail voltage of about 34V. IC3 (the op-amp) seems to taking the current from the transistor. Pin voltage on IC3 is +30V (pin4)and -1.28V(Pin11).
I cannot understand how to get round this.
Suggestions please. Has anyone else had the problem

Ray

By: Darin

Darin — Thu, 05 Apr 2012 13:24:58 +0000

I second what Denis said (except the profanity). I cannot download the plans due to adware interference. Please clean up your site so I can get this download and begin my project.

Thanks!

By: Denis potter

Denis potter — Sat, 10 Mar 2012 11:21:50 +0000

You cannot download from link provided, goes to adware shit, Shows this site in a poor light.
please give valid download link

By: Ray Drury

Ray Drury — Wed, 15 Feb 2012 15:29:06 +0000

Hi,

Would I be right in thinking that the 6.3V transformer is not critical? Looking at the 337 datasheet for calculating output, input voltage does not seem to be critical.
I want o use a 9V or 12v supply (otherwise I will need to pay an import charge to Farnell to bring a 6.3 V transformer into the UK)

Thanks, think this is a great project, which I’ve been looking for sometime. How you guys work it out is quite amazing.

Ray Drury

By: blink_pogi

blink_pogi — Sat, 28 Jan 2012 10:57:40 +0000

sir what’s the meaning of JP1 and JP2…do i need to short it?..is it possible to replace the IC1 op amp with LM324. i already build the circuit, but the LCD only light on in few seconds and light off again..how can i troubleshoot it..

By: blink_pogi

blink_pogi — Sat, 28 Jan 2012 10:35:25 +0000

and….where should we get the output?