I've just about had it with chargers. At my house, we have chargers for phones, cameras, game boys, Nintendos, a Kindle, Bluetooth headsets, and I'm sure I'm forgetting something. Of course, none of them work with more than one device.
I'm begging my engineering friends out there: can you PLEASE fix this. The wireless world has me drowning in cables. Oh yes, I bought a "charging station" to keep everything in one place. Here's what it looks like right this minute:
Impressive, eh? Anyone else feeling my pain? Is there hope on the horizon?
Unfortunately it seems that many manufacturers can come up with different connectors and unusual voltages just so that their charger/power supply is the only one that will work. And somebody in airports helps to assure lots of replacement sales by stealing power supplies from checked luggage. THANKS A LOT, TSA!!!
One solution is to switch to wireless USB devices and then use something like the Motorola EcoMoto Universal Wall Charger for charging. You can actually get a USB hub and connect it to the universal charger and then connect the devices that you want to charge to the USB hub. Keep in mind that the total connected load should be less than the rated load of the charger.
You still have a lot of devices but at least you have one charger for all the devices. Hope it helps.
There is an organized way around this.
1) There are only two common voltages, the others are rare: 5v and 12v
2) 5v is going all USB, there are only 3 connectors in common use: B, mini B, and micro B , the others are being deprecated. So have one SHORT! cable of each that plugs into a USB hub. Power the hub with a 3.5A or better power supply. The max you need for a single device is 2A. The number of things you charge at the same time depends on the amp rating of the supply. If you get a 120-240 5amp supply it will charge most things new. and can be used for travel. The power connector on the hub may be unique, but this is only one connector. Keep the power supply wires fat and short.
For 12v always mark the power connector on the device, not the power supply with voltage polarity, and amps. Mark the supply with what it goes to, router etc.
This leaves cameras, cordless phones and other stuff that is almost all 6v,7.5v, 8.4v or 9v
you can get a universal charger that will do this and 5v as well , with 120-240, it is good for travel too. This goes a long way to solving the power supply issues. Don't buy anything with a wierd voltage.
I believe this was a forced requirement by the EU. No longer do they supply new chargers with every phone, the expectation is that you will use the last charger. This and the adoption of a "standard" phone charger (ie nothing proprietary) is a part of the master RoHS plan.
Sadly, in NA we'd rather add more to our landfills than think green
Folks, this problem has already been solved. Cell phone manufacturers have converged on a standard: the Wireless Power Consortium (WPC)1.0 released the Qi (pronounced "Chi") standard one a year ago. It is designed to be inter-operable with all devices carrying the Q" logo.
Already there are many products on the market with this built in. Nearly 100 member compananies support the Qi standard, including LG, Verizon, Nokia, Energizer, Maxim, Texas Instruments, Motorola, Nat Semi, Panasonic, Samsung, HTC, IDT, Intersil, etc.
I love Bluetooth. Little did I know, seventeen years ago when I was assigned my first project to write about the origins of Bluetooth and the viking that inspired the name that it would bring so much joy and convenience to my life
The main point of this blog is to point out that there is a major shift in LDMOS technology for cellular applications and the device operating voltage is changing from the current 28V range up into the 48V region.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.