How Wireless Charging Works, According to a Former Nokia R&D Director | WSJ Tech Behind
Wireless charging is based on induction, a field that’s seeing rapid innovation. Now, as the universal wireless charging standard makes its first generational update, Qi2 will bring Apple, Samsung and other smartphones to the same universal charging standard. This will create more efficiency and help pave the way for a range of innovations for devices and accessories beyond cell phones.
WSJ explores the tech behind wireless charging and looks at where it is heading in the future.
Chapters:
0:00 Wireless charging
0:41 How the tech works
3:01 How the tech originated
4:16 Where the tech is going
‘The Tech Behind’ explores the amazing engineering, computing, science and algorithms that power our favorite tech.
#Charging #Tech #WSJ
Wireless charging sucks. It warms up the phone and wastes a lot of power
Ngl. The wireless kettle got me more excited than qi2
And then Apple serializes the wireless charger and the phone and if you place a phone on a different charger it bricks both the phone and the charger. 🙃
Nice
Too big to fail corporations has reduced competition, lobbying has made corruption legal and politicians more and more accountable to corporations than the well-being of its citizens
It’s not wireless charging it’s pad charging!!
My Xiaomi is capable of 50W wireless. Never had an issue
Just realized that when wireless charging becomes more of the norm, iphones will no longer have a charging port. It would be a cost saving since you no longer have to machine cut the hole
Seems like a lot of waste of energy,vs wired charging.
Can it wirelessly charge a Tesla?
Feel like this video is about 5-10 years too late, as its ubiquitous now days
I absolutely don’t use the term "wireless charging" because it’s a bit inaccurate. You still need a wire for the charging pad. A more appropriate and accurate name is exactly what it is, it’s called inductive charging. Wireless charging is seriously just a marketing gimmick. I only refer to it as inductive charging.
When you realise Apple actually innovated some good stuff but we take it for granted 😂
Hygiene, accessibility and waterproofing, etc. What other advantages could there be?
Tesla is actually making you huge progress behind the scenes in this field. They have already developed a wireless charging mat where you can place multiple phones anywhere on the mat to charge it. Expect to see this soon for their cars too! Elon is crazy enough to do it 😂
love the appliance use case expansion
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Phones don’t die because of broken connectors, they die because of non replaceable batteries. We don’t need wireless charging, we need replaceable batteries for devices that would otherwise work fine for 20+ yrs. You don’t solve broken connectors with wireless charging you solve it with a proper connector, which USB-C is.
I’d rather have a power cable on things than have to carry every appliance to one place in the kitchen to use it. That’s a tech fail before it even hits the market.
This is so stupid, so much power wasted for so little convenience.
This is peak consumerism creating something that literally consumes the world for very little benefit (only to the rich individual).
The connector argument is stupid, just design the hardware so that the connector is easily replaced and that’s it. We didn’t starte removing the brake pads in car just because they age and need to be replaced at some point…
The video doesn’t answer the question properly. These strong EM waves can interfere with high speed electronics and RF transmission lines inside. There is a good amount of engineering to stop that too.
It still has a wire for you know charging which means
Not wireless.
Wireless charging is the future. Imagine having your laptop and other appliances go around without any wires. OCD heaven
I used a wireless charger for a week or so. It beeps when the charge level is complete. If you leave it on the charger, and it is on, then it discharges a bit and the charger kicks on again. And after a short charge to bring the phone back up to %100, it… beeps. And it does this again. And again. And again. In fact ALL NIGHT. Since I charge the phone on the dresser next to me while I sleep, this is a problem. The charger lives in a bottom drawer now, gathering dust. Obviously the person who designed the thing NEVER ACTUALLY USED IT THEMSELVES.
2012 you say? What about Palm Pre 2009? Only took Magsafe 14 years to duplicate Palm Pre’s magnetic-alignment wireless charging.
What about the EMF and people with pacemakers? I’m not sure it would be safe to go in the kitchen?
I think "wireless" is an inaccurate moniker for a technology that requires the device to be in physical contact to a charging device connected to a power source via, you guessed it, wires.
A solution that only causes greater electricity consumption due to its greater inefficiency in energy transmission than if the cell phone were connected directly by cable.
Make so much sense and sensibility.
Apple – "Universal" that’s not good
Comms channel between charger and reciever .. ? CIA tapped into it already and listening to ur phone while it be charging.
Edit : okay, surveillance angle confirmed.
I wonder if This is why Elon Musk got rid of his supercharging teams. How close till we can just park numerous cars on a parking lot and charge them with the same or similar technology?
this is SO cool
In 2024, many people spend more time thinking of religions than applying science. That is why those countries are so poor and beg for help from scientific countries
Its about time the burden of sticking a plug in a socket is removed from our lives.
Nikolai Tesla (cough, cough)
How much more power does it take to wirelessly charge something?
Electric cars would be great… The cables are really big and heavy inside your car and take lots of space inside a tiny car.
If Apple had their way, and the regulatory agencies did not, then you could kiss an industry wide power charger good bye. I bet Apple had to be dragged , kicking and screaming, to the table for USB C charging, which is now the standard.
Uses 5x power
Don’t read my name!
Reminder to self: Do not upgrade to next smart phone until Qi2 is out
1:06 It is not wireless.
It’s not wireless if it’s still attached to a wire, no?
too much heat generated, it’ll ruin the battery quicker.. wired > wireless
wireless chargers are very inefficient and waste energy
I will be using my own type c charger with me at all times. There is no way I’m using a wireless charger lol. Makes your phone even more useless because it has to be aligned on 1 spot, I use my phone as I’m charging it sometimes.
Wondering if this could possibly be the answer for Electric vehicles in the future: go on a platform and charge
"that won’t be released until 2025"? My Xiaomi charges 50w wirelessly for 3 years now 🤔
Convenience Vs Efficiency