The obsession of the internet folks with "wireless power" is ridiculous.
@cweickhmann My electric toothbrush has one!
I think wireless charging is inefficient, isn't it? Does your tooth brush or charger get warm when it charges?
@Pat @cweickhmann Not really, because it's not a lot of power needed for charging a toothbrush.
Besides, for in a bathroom an induction charger is great because of less danger of electric shock, so that's a great reason to have one there.
That makes sense for that safety reason, but my understanding is that it works like a transformer, except the primary and secondary are in separeate units. And a transformer is inefficient.
There is also a way to transmit power via RF, usually microwaves, but I think that's inefficient, too.
@Pat @cweickhmann Yup, it's indeed inefficient. That's why you usually find it in spots that's actually safer with this.
@trinsec @Pat I was actually not referring to induction charging which has its obvious use cases especially in a potentially wet/corrosive environment. I'm not talking about induction heating either (that's actually very efficient).
What I was referring to is the obsession with Nikola Tesla-style "wireless power" instead of HV wires.
But generally as a rule of thumb: Wireless is never very directive, ie. it works great in very short distances. The longer you need to go, the more you spill. End of story.
>"What I was referring to is the obsession with Nikola Tesla-style "wireless power" instead of HV wires."
Yeah, I don't understand why people get these conspiratorial ideas -- like the power utilities wouldn't be all over that if it was true.
I just thought of another way to transmit power through the air. Just ionize the air molecules so that air becomes conductive -- lightning.
