Breaking News
Comments
Oldest First | Newest First | Threaded View
P_brane
User Rank
Rookie
re: Coupling a Supercapacitor with a Small Energy Harvesting Source
P_brane   1/25/2012 9:58:53 PM
NO RATINGS
I like this article. Energy density for portable applications is a real limiting factor for many otherwise worthwhile or essential products. This is a good leadin to a look at advances in battery technology and capacitor technology. Very useful!

DrFPGA
User Rank
Blogger
re: Coupling a Supercapacitor with a Small Energy Harvesting Source
DrFPGA   1/27/2012 8:41:28 PM
NO RATINGS
Great level of detail and examples. Some real practical information. If you plan on using these techniques bookmark this article!

anne-francoise.pele
User Rank
CEO
re: Coupling a Supercapacitor with a Small Energy Harvesting Source
anne-francoise.pele   7/20/2012 9:19:32 PM
NO RATINGS
Click on the link below to check out the collection of the Design Articles, Case Studies, Product How-To articles, Teardowns, etc... related to energy scavenging that have been published on Smart Energy Designline. Click here: http://www.eetimes.com/design/smart-energy-design/4372778/Energy-harvesting---Design-archive Check back frequently. The list will be updated as new articles arrive.

santo_
User Rank
Rookie
re: Coupling a Supercapacitor with a Small Energy Harvesting Source
santo_   11/16/2012 4:51:23 PM
NO RATINGS
WRONG! In this article there is the wrong assertion: "...the supercapacitor will draw short circuit current from the solar cell when it is at 0V. As it charges, the current reduces according to the solar cell V-I characteristic, but at all times, the supercapacitor is drawing the maximum current it can, so it is charging at the fastest possible rate..." This is wrong because the power delivered from source is very small when voltage is near to 0V (see magenta line on Fig.4). If source work at MPPT then the power delivered to supercap is max and charge time is minimum. Santo Ilardo



Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Engineer's Bookshelf
Caleb Kraft

The Martian: A Delightful Exploration of Math, Mars & Feces
Caleb Kraft
3 comments
To say that Andy Weir's The Martian is an exploration of math, Mars, and feces is a slight simplification. I doubt that the author would have any complaints, though.

The Engineering Life - Around the Web
Caleb Kraft

Surprise TOQ Teardown at EELive!
Caleb Kraft
Post a comment
This year, for EELive! I had a little surprise that I was quite eager to share. Qualcomm had given us a TOQ smart watch in order to award someone a prize. We were given complete freedom to ...

Design Contests & Competitions
Caleb Kraft

Join The Balancing Act With April's Caption Contest
Caleb Kraft
54 comments
Sometimes it can feel like you're really performing in the big tent when presenting your hardware. This month's caption contest exemplifies this wonderfully.

Engineering Investigations
Caleb Kraft

Frankenstein's Fix: The Winners Announced!
Caleb Kraft
8 comments
The Frankenstein's Fix contest for the Tektronix Scope has finally officially come to an end. We had an incredibly amusing live chat earlier today to announce the winners. However, we ...

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)