Power needs for different equipment can and do very widely. A single charger solution has a great deal of appeal. However legislating in an attempt to make "one size fits all' will create it's own set of problems. I have a tablet that requires a high power charger: 18W. I don't know how anyone else feels about it but I would not be happy having to wait several additional hours for my tablet or phone to recharge. And if it was charging, I wouldn't be able to use it since the adapter couldn't even power the device and charge simultaineously. If politicians must meddle, they should at least understand what they are messing with.
@pseudoid, there are several wireless charging solutions in the market. A very popular one is PowerMat, but requires a special case for the device. They have teamed up with Startbucks and AT&T to have wireless power in many Starbucks coffee shops.
Sony has announced charging covers for their Xperia Z2 phone and tablet, and a Wireless Charging Plate, but the solution will add another $100 to the phone price.
Electronic product seem to be moving to Micro-USB here in the US. Two recent purchases both use it: A bluetooth speaker and an mp3 player. Of course, my wife's Samsung phone uses it. But, I have four Apple devices (all 30 pin) and Apple will always be Apple.
Yesterday, I ordered several more Apple 30-pin charge/sync cables. Two are for cars to replace Micro USB after I switched from a Samsung feature phone to an iPhone 4. The others will be scattered around the house.
So fo the most part, we're down to two types of cables, micro USB and Apple 30-pin.
One exception is a digital camera I bought last year. It's connector looks like microUSB but is slightly different. So, you have to use the cable that came with the camera. :-(
Why even bother with a power cord? According to this article (http://www.cnn.com/2014/03/14/tech/innovation/wireless-electricity/index.html?iid=article_sidebar); a company called WiTricity is said to be looking for EOMs to help develop products using their "Source Resonator" — a coil of electrical wire that generates a magnetic field when power is attached. They contend that their applied-for patents are not the same thing as what Tesla was attempting to do with alternating current transmissions. They vision that the whole house will be a magnetic resonator that will even do away with the power cord on your TV/PC...
My 7 year old toothbrush is way ahead of its time!
Max, you're right. I have a Targus power adapter that came with six different plugs, and none fits my Chromebook.
My main computer is a Dell XPS and my wife has a Macbook. When we travel we only take the Chromebook and a Nexus tablet, but before we needed all gear. We really need a solution for laptops, probably a standard for charging batteries.
One of the new HP Chromebooks can use a standard Smartphone charger, but those do not need a lot of power.
@przem: Now, if someone could do something about the laptop and cellphone batteries :)
Forget about laptop batteries -- what about laptop power supplies -- I cannot even think hoe many I've gone through over the years -- it's $%^$ rediculous that every notepad has a completely different power supply interface (mutter mutter, grumble grumble)
Thanks, EU, for making everyone use microUSB for charging. It was really ridiculous with every device having its own connector---and as a side benefit, the USB data connection is much more widely used and working.
I didn't know that requirement expires in 2012. Kudos to EU again for pursuing it. This is an example where the free market simply wasn't able to come up with a solution and regulation worked well for the consumer. Sadly, the US regulatory system is in such disarray that I am not surprised that they couldn't come up with this outcome.
Now, if someone could do something about the laptop and cellphone batteries :)
This helps those situations as well. Third-party chargers that handle multiple devices are already available here in the US, and even if you completely forget your charger it is much more likely that a plug can be found if that plug is standardized (they are common these days at airports). Even if it can't, a charger can be picked up at a corner drugstore for minimal cost instead of having to go to a cell phone or electronics specialty store and buying an expensive specialized one (if you can find it) at a much higher cost.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.