Author Topic: Digital Power Supply 0 to 25V with 0 to 3A cc (Read 1009 times)

maldihtah13 · « **on:** September 10, 2009, 09:30:08 PM »

Here is my project. I want to present it for improvement.

Simulan ko sa Power Section

Comments are welcome. I will try to follow up with the functions tomorrow.

Philippine Electronics Forum · « **on:** September 10, 2009, 09:30:08 PM »

Woots29 · « **Reply #1 on:** September 11, 2009, 08:51:53 AM »

waw subscribing

Philippine Electronics Forum · « **Reply #1 on:** September 11, 2009, 08:51:53 AM »

maldihtah13 · « **Reply #2 on:** September 11, 2009, 12:33:55 PM »

Actually this is based on the digital power supply presented in Electronic Enthusiast. I just changed the control voltage to 0-5V for my DAC then changed the controller to PIC 16F877.

What I like about this circuit is that it has all the function I need for Laboratory Supply. My design incorporates keypad to enter desired voltage and current limit. The only limitation I found is the unavailability of multi output (multi winding) transformer.

I've used 8bit DAC thats why the output is 0-25.5V with scale of 0.1V and the current is 0-2.55A with step of 0.01A.

I would like to enhance this with the help of the master and share it to elab members.

Philippine Electronics Forum · « **Reply #2 on:** September 11, 2009, 12:33:55 PM »

glutnix_neo · « **Reply #3 on:** September 11, 2009, 01:03:54 PM »

request, di ko po makita eh,

paupload po dito "http://www.zwixy.com"

Philippine Electronics Forum · « **Reply #3 on:** September 11, 2009, 01:03:54 PM »

maldihtah13 · « **Reply #4 on:** September 11, 2009, 01:12:04 PM »

eto po

Philippine Electronics Forum · « **Reply #4 on:** September 11, 2009, 01:12:04 PM »

glutnix_neo · « **Reply #5 on:** September 11, 2009, 01:18:57 PM »

I see, aralin ko muna circuit.

Thanks

Ikasamoko · « **Reply #6 on:** September 11, 2009, 03:20:23 PM »

Ito yata ang project sa EE na direct keypad entry? tapos clear transparent acrylic yung casing?

maldihtah13 · « **Reply #7 on:** September 11, 2009, 06:32:18 PM »

Yes ito nga yung power section with some modification. Pinalitan ko na rin DAC and Microcontroller.

Philippine Electronics Forum · « **Reply #7 on:** September 11, 2009, 06:32:18 PM »

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