[ale] Re: UPS thread

[Hogg, Russell E]

Hmm..
Pumped flywheel and UPS into Google.

http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=flywheel+UPS&btnG=Goo
gle+Search


Whole pile off stuff came back.  Some of it's interesting reading



http://librenix.com/?inode=919


http://www.aspes.ch/messages/391.shtml


http://murray.newcastle.edu.au/users/students/2001/c9605166/modern_ups.htm







____________________________________________
ctcrreho at opm.gov



-----Original Message-----
From: tfreeman at intel.digichem.net [mailto:tfreeman at intel.digichem.net] 
Sent: Saturday, October 11, 2003 2:38 PM
To: Atlanta Linux Enthusiasts
Subject: [ale] Re: UPS thread


If memory serves, we have hit this topic once or twice before. 'Couple of 
whimpers/nits/whatever. 

One of the other posters has wondered why modern devices don't carry 
enough reserve capacitance to survive a 30 sec power blip. IMHO, I suspect 
that weight and upfront cost are the culprits - if your vcr is too heavy, 
Ms. Consumer will not lug same home, and if there is a 2% premium charge, 
Mr. Consumer will skip over to something less costly upfront. After all, 
resetting the clock and channels every week or so doesn't cost any money 
8-).

I rather like to see a home UPS based on flywheel technology. Fewer toxins 
to deal with at the end of life cycle (although recycling lead batteries 
seems to have gotten much better lately) for one thing, and I suspect 
longer service life for flywheels. Also, a flywheel should 
charge/discharge at higher rates without damage indefinitely.

With respect to battery concepts, I'd love to see some Li ion cells 
adapted to the computer/electronic power supply. In addition to fewer 
toxics at the end of the life cycle, they can be produced as fibers, 
meaning that part of the case could be molded from the battery. (Wonder if 
there is a way to incorporate a battery as part of the Motherboard circuit 
board?) Put a largish capacitor early in the power supply to buffer 
circuits from a local surge, while hanging 2-4 minutes of Li ion batteries 
off the low voltage DC side to allow for an orderly shut down. The trick 
would be getting the consumer to pay for such.

Since the general consumer seems unlikely to pay for such niceties, any of 
the engineering types here have leads on building your own power supplies 
and/or UPSs? I'm probably too lazy to do either, but the knowledge of the 
technology would be of interest anyway.

-- 
=============================================
If you think Education is expensive
Try Ignorance
                   Author Unknown
============================================

_______________________________________________
Ale mailing list
Ale at ale.org
http://www.ale.org/mailman/listinfo/ale


-------------------------------
--  Even though this E-Mail has been scanned and found clean of  
--  known viruses, OPM can not guarantee this message is virus free.
-------------------------------
--  This message was automatically generated.
-------------------------------mi
-------------- next part --------------
An HTML attachment was scrubbed...