[time-nuts] Oncore question

GandalfG8 at aol.com GandalfG8 at aol.com
Mon Nov 24 08:47:30 UTC 2008


 
In a message dated 24/11/2008 05:43:49 GMT Standard Time, yuri at ostry.ru  
writes:

I simply  put large rechargeable Lithium-Vanadium pentoxide coin cell
with  appropriate charging circuit to GPS carrier board and forgot about
this  question...

Another solution is to put CR123 battery holder to carrier  PCB, stuff
it with a good quality cell and it will probably last for 15+  years,
driving just clock and CMOS RAM during power  outages..



----------------
 
And if it's important that the whole system stays working for reasonable  
length drop outs, lead acid gel batteries on a master 12, 24 or 48 volt  
(nominal) power supply, again forgetting batteries at board level, are  still hard to 
beat.
 
regards
 
Nigel
GM8PZR


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