Can any one recommend a good but affordable power suppy

I have been looking for a good, low-cost, dual channel power supply. Ideally I would like variable voltage (0-30V), current limiting and good current reporting (nice to be able to see uA level readings). Anyone have any recommendations?

Thanks!

Gene

Top Replies

kas.lewis over 7 years ago +2

I use a Tenama, its not the best but it sure does the job. Kas
michaelwylie over 7 years ago in reply to genebren +2

Although I've never used it, Dave Jones makes a uCurrent adapter for multimeters https://www.eevblog.com/projects/ucurrent/
genebren over 7 years ago in reply to michaelwylie +2

Yeah, that is pretty cool. I have seen a couple of write-up on this product before. I have used a ACS712 (Hall effect, linear current sensor) in another product and I might be able to adapt my design slightly…

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jw0752 over 7 years ago

Hi Gene,
What you describe is a standard low cost unit up until you mentioned micro amps. I would recommend that you get a low cost unit that will read down to 10 milliamps and then get a bench multimeter that you can use for more precise amp readings. I have this power supply which has worked very well for my simple bench top experiments.

http://www.mastechpowersupply.com/mastech-linear-dc-power-supply-30v-3a-hy3003f-3-triple-outputs.html

I have made several similar units that were not quite as good as the commercial unit and if you counted my labor as worth anything the one I built would be more expensive than the commercial unit.

John
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jw0752 over 7 years ago

Hi Gene,
What you describe is a standard low cost unit up until you mentioned micro amps. I would recommend that you get a low cost unit that will read down to 10 milliamps and then get a bench multimeter that you can use for more precise amp readings. I have this power supply which has worked very well for my simple bench top experiments.

http://www.mastechpowersupply.com/mastech-linear-dc-power-supply-30v-3a-hy3003f-3-triple-outputs.html

I have made several similar units that were not quite as good as the commercial unit and if you counted my labor as worth anything the one I built would be more expensive than the commercial unit.

John
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