Rockbox.org home
release
dev builds
extras
themes manual
wiki
device status forums
mailing lists
IRC bugs
patches
dev guide



Rockbox mail archive

Subject: RE: Question to powermgm.c charging algorithm
From: Nielsen Linus (ext) (Linus.Nielsen_at_elema.siemens.se)
Date: 2002-08-08


> First: What do you call negative and positive delta? It seems that
>
> positive delta = voltage is going down
> negative delta = voltage is going up

What makes you think that?

> why is the second test (delta <= 5) ? Shouldn't it be (delta
> >= 5), that means "turn off charging if the voltage
> went down at least by 0.005" Volts?

No, i guess it means "stop charging if the voltage doesn't rise that much
anymore".

> Does the first check (delta < -50) mean that charging
> stops if the voltage went up very quickly?

No, it stops if the voltage drops quickly, a negative-delta detection.

/Linus



Page was last modified "Jan 10 2012" The Rockbox Crew
aaa