Charged my smartphone on a wireless charger and I’m convinced it is black magic or witchcraft. It barely charged (sitting for 4 hours, only went up by 10%.) I assume it has something to do with electrons…
In: 41
> It barely charged (sitting for 4 hours, only went up by 10%.)
That seems quite low. The phone may not have been properly aligned with the charger.
Make sure your case doesn’t interfere with the charging, and that it’s plugged in with the right voltage usb or charging block
Kind of a follow up question:
I faintly remember from college that in a conventional socket charger, voltage is stepped down (are phases altered as well?), rectified to DC and the raw DC again ‚filtered’ as to get a smooth and roughly constant voltage.
Now the induction should deliver AC as well, electronics (usually) and battery charging requires DC so a rectifier is required within the phone – so far so good, but what about the other processes?
Is some of it (voltage, phases, peak amplitude, …) already optimised by the charging device or is additional circuitry on top to charging coil and rectifier required?
Or am I actually overestimating the capabilities of my charger‘s socket and recitifying/filtering/… was already done within the phone all the time before (except for voltage transformation)?
Electricity can produce electromagnetic fields which in turn, induce an electrical current in a nearby conductor. Transformers (such as the step-down transformers that go from 120 V AC to 24 V AC for your thermostat) work the same way. There isn’t a direct physical connection between your 120 V wiring and your 24 V wiring in your furnace.
Latest Answers