Werner Almesberger wrote: > Another theory is that the bead doesn't like 1 A for extended > periods of time. But then, if this was a general problem, we'd > see more units with that issue. As far as I know, yours is the > only one that did this. > > Yet another theory (by Joerg) is that your power supply has a > lot of high-frequency ripple and the bead had to work extra-hard > to get rid of that.
When the original reporter said the phone was plugged in all night - was this on the Openmoko wall charger? And what state was the phone in? Was it running Linux, suspended, off, etc? I am just wondering if this could be connected to a u-boot bug that I encountered last year (see http://lists.openmoko.org/pipermail/openmoko-kernel/2008-August/004706.html). With that issue a phone connected to the wall charger would rapidly toggle the PMU's current limit between 0 and 1A, resulting in spikes in the current drawn from the wall charger. A similar issue is the "Vsys brownout" on A5 boards with a completely dead battery (trac #1712), where the PMU tries to start up but the system draws too much current and the PMU shuts off again. _______________________________________________ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support