Power One power supply

[bob91343]

I was recently gifted an old power supply, Power One model HE 15-9.  It's rated for 15V out at 9A.

If anyone has a schematic or manual for this I would appreciate getting the information.  Google has not produced anything useful.  It seems the company was bought out a few years ago and there is no useful website.

[duak]

I've never seen schematics published by the manufacturer.  However, here's a website that is very useful: https://www.djerickson.com/p1hack/

[bob91343]

Thanks for that, duak!  I discovered that my 15V supply could be adjusted to the desired 13.8V by the little cheap pot they used.  That makes the 9A rating a bit optimistic so I best stay well below that.

I never looked to see if there is a 723 in there but I will.

The company seems to have disappeared, for all practical purposes.  Mine came with a hard wired power cord but no fuse or switch, an omission easily corrected.

[ledtester]

Looks like Power One was acquired by Bel Fuse:

https://ir.belfuse.com/news-releases/news-release-details/bel-closes-acquisition-abb-power-one-solutions

Also:

https://www.artisantg.com/TestMeasurement/71753-9/Bel-Fuse-Power-One-HBB15-1-5-A-Power-Supply

[bob91343]

Well yes there is a 723 in the unit, the 14 pin DIP style.

As for the acquisition information, well the balloon doesn't seem to have been inflated very much, as Power One's existence is a bit dubious.  Be that as it may, the supply I have works okay (although I haven't put a load on it yet).

But it was free so I have no complaints.