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

Book Review: Deadly Odds by Allen Wyler
Max Maxfield
11 comments
Generally speaking, when it comes to settling down with a good book, I tend to gravitate towards science fiction and science fantasy. Having said this, I do spend a lot of time reading ...

Martin Rowe

No 2014 Punkin Chunkin, What Will You Do?
Martin Rowe
1 Comment
American Thanksgiving is next week, and while some people watch (American) football all day, the real competition on TV has become Punkin Chunkin. But there will be no Punkin Chunkin on TV ...

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
13 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Martin Rowe

Book Review: Controlling Radiated Emissions by Design
Martin Rowe
1 Comment
Controlling Radiated Emissions by Design, Third Edition, by Michel Mardiguian. Contributions by Donald L. Sweeney and Roger Swanberg. List price: $89.99 (e-book), $119 (hardcover).