I’m sure we all have seen this and I don’t know if it’s exactly as what’s described here, but my little 1” square sized Apple charger for my iPhone, gets burning hot to the point where I can’t even touch it while the phone is charging for an hour or so. It hasn’t died yet, after several years. Sent from: My extremely complicated, hand held electronic device.
On Feb 21, 2024, at 8:47 PM, William Dudley via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:
Electrolytic caps are not going to be happy with high temperatures.
Bill Dudley
This email is free of malware because I run Linux.
On Wed, Feb 21, 2024 at 2:58 PM John Heritage via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
Hey folks -
Looking for some insight from the hardware inclined here.
GaN USB chargers are touted as being able to deliver higher power in smaller form factors (I.e. charging a 65W USB device while the size of a “standard silicon” ~ 10-20W USB charger).
I know on paper GaN can run a lot hotter successfully than silicon (>150C for example), but I’m wondering - when you have a GaN USB charger that runs pretty hot for long period of time, is it really safe? Aren’t there likely other components in the charger that don’t have the increased heat tolerance of GaN semiconductors?
I’m asking as one of my GaN chargers gets hot enough to the point that I’d be really worried with a traditional PSU. It only happens if I had two devices attached that need a full charge - once they’re topped off or higher up in charge temperature is no issue.
Thanks, John