Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

ups\inverter for pc and home equipment

Status
Not open for further replies.

waqasraheel

Newbie level 5
Joined
May 18, 2011
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,331
I would like to build my own UPS ( 800 w).
Where can I get the good circuit or help?
i also want to know what rating of battery and transformer will be used in the circuit
 

BradtheRad

Super Moderator
Staff member
Joined
Apr 1, 2011
Messages
13,972
Helped
2,785
Reputation
5,568
Reaction score
2,691
Trophy points
1,393
Location
Minneapolis, Minnesota, USA
Activity points
104,221
I believe a lot of us would like to be able to do the same.

The cost of parts will include a not-commonly-available transformer designed to step up 12V (or 24V) to your house AC voltage. Rated for 800 W.

Plus you'll need various other parts...

all of which combined will no doubt add up to more than a commercially-manufactured unit.
 

waqasraheel

Newbie level 5
Joined
May 18, 2011
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,331
i want a schematic diagram and also the specification of the circuit
 

daver01a

Junior Member level 2
Joined
Aug 1, 2007
Messages
21
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,283
Activity points
1,480
Here is a tried and true Home UPS Approach.
We used it for seven years on a Web Hosting Start-up.
We ran 4 servers 24-7 for seven years.
..
Simple::
..
We used two Heavy Duty Deep Cycle Batteries (the kind they use in Large Diesel Tractor Trailer rucks).
..
We used cheap DC/AC Inverters (Harbor Freight $79.95).
..
We also used simple Battery chargers.
...
Each Computer/Server was hooked up to a UPS. The UPS was powered by a set of Batteries. The batteries were hooked up to a battery charger.
...
I told you it was simple!!!
..
Background:
1st: A 24VDC or 48VDC Computer/Server Power supply is expensive.
Normal AC Powered Computer Power Supplies are not.
2nd: Commercial UPS's are expensive... Most home UPSs (the $299.00 variety) only give 10 to 15 minutes of back up power.
...
The simple set up I described would easily power the server for over 48-hours with a sustained power outage. Since it was hooked up and always on-line, it was essentially a 24-7 power source for the server.
..
We have since migrated to multiple Blade servers in a custom built Server center. Our server center has three phase power, and we use a set of 100KW Commercial UPSs. But they are nice, but cost per KW - the Battery and Inverter with Battery charger was the most economical all around for a server, or even a pair of servers. But our operation has grown to over 28 Cabinets, each with at least 64 Blade Servers - way to cumbersome for dedicated Batteries, Inverter, and Battery Charger for each Blade Server Set.
..
Dave
Phoenix Computer Labs
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top