Electronics > Beginners

Bench PSU kit comments?

<< < (5/5)

saturation:
Hi Alm,

My pleasure.  I enjoy finding a good deal. 

Alas, no, it doubles the pots capability, which is strange.  By putting the secondaries in parallel they could double the output current while halving the maximum voltage but!  ???  The fan is very generic, its an easily obtainable PC case fan, I have the exact same model I use to supplement my PCs cooling, cost me $3 for 2.  There is enough room inside the case to add mods.  You could add a temperature driven variable speed control, to cut noise down.

The quiescent power is 15 watts, measured with a power meter.

This is what the older design looked like, and heat sink does bulk up the design.  Spin the flash graphic for a 360 deg view.

http://www.mpja.com/email/flash/showflash.asp?itemno=14601%20PS




--- Quote from: alm on July 02, 2010, 07:23:06 pm ---Thanks for posting your impressions! Does the Hi/Lo halve the max voltage and put the windings in parallel instead of series? Otherwise I don't understand the point (except doubling the range of the current pot). Sounds a bit awkward if you're just around the 1.5A point, I would have designed some overlap if I had to do it at all (and preferably switch automatically). I dislike fans in equipment, especially fixed speed ones, so I'm not sure if I'd be happy with the trade-off, but I'm sure it reduces the cost (fans are cheaper that large heat sinks).

--- End quote ---

johnnyk126:

--- Quote from: EEVblog on June 18, 2010, 01:09:46 am ---
--- Quote from: Anders on June 15, 2010, 09:41:43 am ---When do we get to see this PSU Dave?  :)

--- End quote ---
Hopefully in the not too distant future.

--- End quote ---
How is that project going? Can you give some more information when and in what form would it be available?
And possibly a little bit more about the design...

Navigation

[0] Message Index

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod