Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
mithrandir
User Rank
Rookie
Useful with regulation?
mithrandir   5/9/2014 1:06:00 AM
NO RATINGS
Wonder what sort of regulation this little guy needs before it's useful to be plugged in. I don't particlarly imagine watchmakers jumping at the prospect of adding a regulator IC on the already small footprint. 

kfield
User Rank
Blogger
What about hot air?
kfield   5/8/2014 7:50:01 PM
NO RATINGS
I believe some people may generate enough hot air in order to power this generator!!

anon0050695
User Rank
Rookie
Not useable in practice - I think.
anon0050695   5/8/2014 1:58:46 PM
NO RATINGS
Hello, does not work in temperate climates where the temp difference is small and heat transfer away from the 'generator' is not a sure thing. And as a Norwegian I know it's not going to work in winter. I'm not going to bare my wrists! Thus the temperature inside my jacket and mittens cafrefully covering my wrists is the same as my external body temperature ie no energy can be harvested. A lot more work is needed.

However, if someone comes up wirt a safe and efficient way to move energy from the shoes to the wrist (apart from wires or using the body's blood stream) then we start talking re how to power a werable device!   

 

Pablo Valerio
User Rank
Blogger
Re: Use in wearables
Pablo Valerio   5/8/2014 11:20:08 AM
NO RATINGS
I believe this technology needs further development. The initial numbers are very encouraging, but it can be enhanced.

Also people do not use the wearables all the time, so continous charging is not necessary, but the power strip can provide addtional usage time.

fpga_brad1
User Rank
Rookie
Use in wearables
fpga_brad1   5/7/2014 8:39:36 PM
NO RATINGS
Assuming 15C delta temp(pretty high for typical users) and 140mAh battery that lasts a day I calculate it would take roughly 46  cm2 to power it. That is about one order of magnitude too large for typical wearables. It is nice work but 46 cmworth of solar cell will also power this in an office environment. If you get an athlete in a cold environment the numbers do start to look reasonable.



Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Where Are the Ceramic Vacuum Tube Holders of Yesteryear?
Max Maxfield
50 comments
I'm currently cursing myself for being a fool. I have let chances and opportunities slip between my fingers. I deserve to be berated soundly. But what is the cause of this gnashing of ...

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
2 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...