No battery Vsys issue is USB overcurrent?

Werner Almesberger werner at openmoko.org
Mon Jun 30 16:25:44 CEST 2008


Andy Green wrote:
> Did that mail you replied to go out on the list or what?  I didn't
> receive a copy of it yet.

Yup, it went to the list. Maybe it's having a slow Monday ;-)

> | That sounds plausible, yes. I estimated that the systems draws about
> | 3W from the capacitor bypassing VB_SYS.
>
> Wah for how long though?

One of the voices in my head tells me that this was with a drop
duration of about 100us, but I'm not sure.

> I didn't see why it shouldn't be coincidence.

One way to find out would be by starting to remove stuff.
Perhaps that's what I'll do ...

- Werner




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