[time-nuts] Portable standard
EWKehren at aol.com
EWKehren at aol.com
Wed Apr 6 11:54:39 UTC 2011
Sorry to confuse. Pulse was the wrong word. What I was trying to say is
that during the charge mode the charge controller does interrupt the charge
process to check battery voltage. Since English is my third language please
forgive me.
Bert Kehren
In a message dated 4/6/2011 7:04:36 A.M. Eastern Daylight Time,
phk at phk.freebsd.dk writes:
In message <1c9ce.62e32c26.3acda07c at aol.com>, EWKehren at aol.com writes:
>Today most electronic charge circuits use pulse mode [...]
Really ?
The only place I see "pulse mode" chargers for SLA batteries is in
the automobile snakeoil market, where d00des appearantly think it
will make their speakers louder...
For Li+ batteries in tiny gadgets, like mobiles, pulse mode charging
is used to reduce the size and heat from the charge regulator, but
it does nothing good for the battery.
A good temperature compensating switchmode charger is the way to go.
Poul-Henning
PS: Source of good papers about batteries in backup applications:
http://www.battcon.com/ArchivePapers.htm
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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