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Apple is working with Energous on wireless charging

venturebeat.com

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Re: Apple is working with Energous on wireless charging

#31

Post by usaphp »

satysin wrote: post #13
brendan_a_b wrote: post #8

Earlier quoted context omitted.

"Energous’ technology involves more than just a charging mat to lay devices on top of. The company’s transmitter broadcasts proprietary waveforms directly to receivers and then surrounds those receivers with a radio frequency “pocket” that charges devices. The signals can travel up to 15 feet, and up to 12 devices can be charged at once." This quote sums up the difference

Yay a proprietary changing protocol so I will need how many different wireless charging stations? Sigh.

People complain that they don't innovate and also complain that they don't use standards, you can't innovate while using standards I think

Re: Apple is working with Energous on wireless charging

#35

Post by mitchty »

noobermin wrote: post #20
scoot wrote: post #11

Earlier quoted context omitted.

Like a solar powered watch or calculator?

Arguably, yes. Of course, the power requirement to recharge a battery for a calculator (in a decent amount of time) is a lot less than that for a modern cell phone. Same physics if your level of detail is Ohm's Law but very different in practice because we are talking about charging a phone batt in a comparable time to plugging it in.

Yeah, kinetic energy recharge of a phone is a pipe dream, last time I remember figuring out how much energy you can get from that, it amounted to walking across the USA from coast to coast.

Solar is equally crappy.

Re: Apple is working with Energous on wireless charging

#37

Post by givinguflac »

mariojv wrote: post #34

This way they can remove the only plug on the new iPhones. :)

Honestly I'm fine with that if it means never having to plug my device in again. "The signals can travel up to 15 feet, and up to 12 devices can be charged at once." Sounds amazing.

Re: Apple is working with Energous on wireless charging

#38

Post by ProAm »

adevine wrote: post #15

My understanding, though, is that all of these wireless charging solutions are significantly less efficient that wired power. Even if it's, say, 10% less efficient, that's a huge, huge waste of energy on a large scale if this technology becomes popular.

Not only is it inefficient but I believe the heat produced while charging seriously degrades the battery and reduces it's expected lifespan.

Re: Apple is working with Energous on wireless charging

#39

Post by givinguflac »

nxzero wrote: post #30
Yhippa wrote: post #5

Earlier quoted context omitted.

I wouldn't mind it. For a lot of my devices if you put on the wireless charger the wrong way you come up to a dead device. This would theoretically allow you to be fully charged if there were enough beacons in a building.

Most people would not mind wireless power that's not dangerous, but that is not a pragmatic reasoning behind why it will happen soon, but didn't happen in the past. Right?

It's almost like technology is constantly changing and advancing, weird. /s

Re: Apple is working with Energous on wireless charging

#40

Post by g52oevr0in »

duaneb wrote: post #24
adevine wrote: post #15

My understanding, though, is that all of these wireless charging solutions are significantly less efficient that wired power. Even if it's, say, 10% less efficient, that's a huge, huge waste of energy on a large scale if this technology becomes popular.

Why would it not be absorbed by proportional savings in heating?

This is true only if your home is running an electric heater. Burning hydrocarbons like natural gas, oil, and wood to heat your home directly is more efficient than using them to run a turbine to generate electricity, then run that electricity many miles to your home, then turn it into heat.
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