0-30V 3A power supply is needed

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Hi

I need a laboratory power supply sch,I like that it be digital (meters,adj) ,
 

PSU

Hi

There are numerous designs of PSU's in this forum, search for digital controled power supply and so on. I do not know how advanced it should be but check here:

123.people.cornell.edu/pages/shb7/ps.html
123.epemag.com I think..
123.elektroda.pl/eboard/viewtopic.php?t=20690&highlight=digitally
123.elektroda.pl/eboard/viewtopic.php?t=25696&highlight=digitally
I am building an old design from elektor 0-40V 0-5A, +-0-40 and 0-5A or in seriall paralell mode 0-80 and 0-10A. But the design are quite old so the modern ones are perhaps a little bit cheaper. The reason I choosethis design was that I already had some of the thyristors and diodes.

Regards
 

Look at:

0-30 VDC STABILIZED POWER SUPPLY WITH CURRENT CONTROL 0.002-3 A
**broken link removed**
 

You can use very popular regulator IC LM317
 

And something more simple

Variable Power Supply 0–24 V, 1 A or 2 A
It realy is ideal for the small workshop
 

Digital Benchtop Power supply

hi

Full paacket for this supply (Digital Benchtop Power supply)

**broken link removed**
 

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