Found some boost converter boards on eBay and took a shot. I can get up to 45 volts off my One Spot and it was perfectly quiet powering a plex drive. The best part is they're only about $2.50 each :o
Link to eBay item (http://www.ebay.com/itm/2pcs-XL6009-DC-DC-Adjustable-Boost-Step-up-Power-Supply-Module-6A-6V-45V-Output-/221276480739?pt=LH_DefaultDomain_0&hash=item33851b24e3)
(http://cl.ly/image/3k06110I0o10/$(KGrHqV,!qsFIdM5J4(gBSIvi6!Y8w~~60_3.JPG)
This look like the part?
http://www.xlsemi.com/datasheet/XL6009%20datasheet.pdf (http://www.xlsemi.com/datasheet/XL6009%20datasheet.pdf)
If so, it'll do inversion too and it runs at 400kHz and claims 94% efficiency. Now to find the parts somewhere.
Thanks, these look very promising.
Quote from: kothoma on September 29, 2013, 06:55:48 AM
Thanks, these look very promising.
Not shipping to germany :-(
What about this?
http://www.ebay.com/itm/DC-DC-Buck-Converter-Step-Down-Module-LM2596-Power-Supply-Output-1-25V-35V-/400560839975?pt=LH_DefaultDomain_0&hash=item5d43495d27 (http://www.ebay.com/itm/DC-DC-Buck-Converter-Step-Down-Module-LM2596-Power-Supply-Output-1-25V-35V-/400560839975?pt=LH_DefaultDomain_0&hash=item5d43495d27)
Quote from: brejna on September 29, 2013, 02:31:46 PM
What about this?
http://www.ebay.com/itm/DC-DC-Buck-Converter-Step-Down-Module-LM2596-Power-Supply-Output-1-25V-35V-/400560839975?pt=LH_DefaultDomain_0&hash=item5d43495d27 (http://www.ebay.com/itm/DC-DC-Buck-Converter-Step-Down-Module-LM2596-Power-Supply-Output-1-25V-35V-/400560839975?pt=LH_DefaultDomain_0&hash=item5d43495d27)
That one looks like it's a buck converter and will only step down the voltage.
Quote from: Thomas_H on September 29, 2013, 01:43:33 PM
Quote from: kothoma on September 29, 2013, 06:55:48 AM
Thanks, these look very promising.
Not shipping to germany :-(
Yep, but these sellers do: :)
http://www.ebay.de/itm/251331225242 (1pc $3.39)
http://www.ebay.de/itm/331020427744 (10pcs $19.99)