Embedded Systems Conference
Breaking News
Comments
Oldest First | Newest First | Threaded View
Page 1 / 2   >   >>
zewde yeraswork
User Rank
Author
too many options?
zewde yeraswork   12/13/2013 1:45:14 PM
NO RATINGS
This article leads naturally to the question--the same question behind Moore's Law and a number of other technological paradigms--is there really such a thing as too many options? Too much power? Too much diversity? Too much integration?

krisi
User Rank
Author
heat
krisi   12/13/2013 3:38:03 PM
NO RATINGS
I wonder how much heat is dissipated in the process of charging...can I put my coffee on top on the wireless box to keep it warm?

_hm
User Rank
Author
Re: heat
_hm   12/13/2013 5:40:55 PM
NO RATINGS
@Krisi: It is Faraday cage. It will not RF escape.

_hm
User Rank
Author
There is always better way!
_hm   12/13/2013 5:43:42 PM
NO RATINGS
This is wonderful idea and very suitable application. Kudos to them. This technology will proliferate soon. IEEE should consider working on standard for this. It will be very helpful.

 

krisi
User Rank
Author
Re: heat
krisi   12/13/2013 7:01:50 PM
NO RATINGS
I realize RF signals will not escape...but the energy has to go somewhere...and energy transfer is not 100%, actually how high is it?

DrQuine
User Rank
Author
The Larger Question
DrQuine   12/14/2013 9:31:37 PM
NO RATINGS
It doesn't matter how many ways we develop to send power to a rechargeable device, we still need to have a compatible receiver on the device end. Just when standards are being set to ensure compatible charging cords for mobile phones, we seem to be spiraling into endless combinations and permutations of wireless charging protocols. Consumers probably just need to step away and allow the competition to play out.

Sanjib.A
User Rank
Author
Re: heat
Sanjib.A   12/15/2013 6:13:25 AM
NO RATINGS
I was going through an article on the same topic and learned that the efficiency of RF transmission would be ~90% and above for this device. So 10% of that would be dissipated as heat? Again some more would be dissipated by the receiver, the charging chip on the device being charged...don't know how much that would be.

krisi
User Rank
Author
Re: The Larger Question
krisi   12/15/2013 11:35:49 AM
NO RATINGS
I think it is a natural market evolution @Dr Quine...some technologies, standards and companies will eventually die...at this point it is not clear who is the winner, BTW,  the winner might be decided by a consumer company like Starbucks not by the technology company...Kris

Kinnar
User Rank
Author
Keeping Electronics will also become power hungry
Kinnar   12/16/2013 4:00:40 AM
NO RATINGS
Till today portable electronics was not consumer power, but with this kind of devices being used for charging batteries will be consuming more power than required individually by the actual portable device. Yes it is better that it removes the charging connectors from the devices but at the same time it is equally required to be economical in terms of power consumption.

Sanjib.A
User Rank
Author
RF Energy Harvestiing?
Sanjib.A   12/16/2013 11:55:52 AM
NO RATINGS
"The signals are received by electronics built into the charging device and then converted to DC energy"

I am assuming that the "charging device" mentioned here is some kind of RF energy harvesting device which converts RF energy into charging current. What is the kind of RF signal used? I wonder if the electronic gadgets with these "charging devices" would be capable of harvesting RF energy from mobile phones, wireless devices, radios etc. even when not kept inside those charging boxes...possible?

 

Page 1 / 2   >   >>


Radio
NEXT UPCOMING BROADCAST
In conjunction with unveiling of EE Times’ Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. One of Silicon Valley's great contributions to the world has been the demonstration of how the application of entrepreneurship and venture capital to electronics and semiconductor hardware can create wealth with developments in semiconductors, displays, design automation, MEMS and across the breadth of hardware developments. But in recent years concerns have been raised that traditional venture capital has turned its back on hardware-related startups in favor of software and Internet applications and services. Panelists from incubators join Peter Clarke in debate.
Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...