lkml.org 
[lkml]   [2023]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 00/10] Add RT5033 charger device driver
From
Hi Pavel,

On 25.03.23 17:08, Pavel Machek wrote:
> Hi!

...

>> - The third option of the rt5033 chip is enabling charging termination. This
>> also enables a re-charge cycle. When the charging current sinks below the
>> end-of-charge current, the chip stops charging. The sysfs state changes to
>> "not charging". When the voltage gets 0.1 V below the end-of-charge constant
>> voltage, re-charging starts. Then again, when charging current sinks below
>> the end-of-charge current, the chip stops charging. And so on, going up and
>> down in re-charge cycles. In case the power consumption is high (e.g. tuning
>> on the display of the mobile device), the current goes into an equilibrium.
>> The downside of this charging termination option: When reaching the end-of-
>> charge current, the capacity might not have reached 100 % yet. The capacity
>> to reach probably depends on power consumption and battery wear. On my mobile
>> device, capacity reaches 98 %, drops to 96 % until re-charging kicks in,
>> climbs to 98 %, drops to 96 %, and so on. Not reaching 100 % is a bit
>> confusing to the user, too.
>
> Is the system powered from the battery in the not-charging case?

Yes, at RT5033 in the "not charging" state the system draws the power
from the battery.

...

Kind regards,
Jakob

\
 
 \ /
  Last update: 2023-03-27 22:22    [W:0.209 / U:1.784 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site