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Old 2nd November 2007, 09:58 AM   #1
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Default DIY UPS, completed

DIY UPS, took me ~9 weeks to complete.

What do you all think of this, itís a homemade UPS that took me more then 9 weeks to complete, and the circuit is all made by me.

Functions added:
10 sec timer for mains to stabilized
High and low voltage protection
Auto resume function after mains recovered / keeps suspended after turned of by PC after mains is turned on
Communication cable via RS-232 serial cable, to inform my PC that the mains is down and to inform my PC if the battery is low, and a function that allow my PC to switch of my UPS after a successful shutdown then the certain time is reach set by my PC


The charging works with a normal 8 amp 12v charger that it set to trickle charge
And the battery bank uses 2 X 60Ah car batteries


What to u think? Worth it or not?
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Old 2nd November 2007, 09:59 AM   #2
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another front face pic
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Old 2nd November 2007, 10:02 AM   #3
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control board
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Old 2nd November 2007, 10:53 AM   #4
Zen Mod is offline Zen Mod  Serbia
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Old 2nd November 2007, 11:17 AM   #5
Luke is offline Luke  New Zealand
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well worth it
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