3 ms·
That sound weird, a 0.05V fluctuation should be well within tolerance. Otherwise there'd be plenty of phones blowing up out of nowhere due to glitches or random
by laurentdc 10y ago
That sound weird, a 0.05V fluctuation should be well within tolerance. Otherwise there'd be plenty of phones blowing up out of nowhere due to glitches or random overshoots from the charging circuitry.
- petertodd 10y agoCharge circuitry can easily maintain a ±0.05V voltage tolerance if needed. For example, googling for datasheets found this charge controller IC with 1% tolerance: http://cds.linear.com/docs/en/datasheet/4050f.pdf http://cds.linear.com/docs/en/datasheet/4050f.pdf I'm no expert on battery chargers, but I can certainly imagine a design using that kind of tolerance if it made the batteries work better; holding that kind of tolerance is fairly cheap these days. Re: glitches, I'd imagine that a battery isn't going to care about extremely short duration events; preventing longer-duration overshoots isn't all that hard.
- qb45 10y agoYour argument would be valid if they all exploded neatly when reaching 100% charge, not when there actually is "plenty of phones blowing up out of nowhere".