Breaking News
Comments
Newest First | Oldest First | Threaded View
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

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.

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!

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!



Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

MSGEQ7-Based DIY Audio Spectrum Analyzer: Testing
Max Maxfield
13 comments
In my previous column on this topic, we discussed the step-by-step construction of the first pass at a MSGEQ7-based DIY audio spectrum analyzer for use in my BADASS Display project. Of ...

Karen Field

June 2014 Cartoon Caption Winner
Karen Field
13 comments
Congratulations to "Wnderer" for submitting the winning caption for our June cartoon, after much heated conversation by our judges, given the plethora of great entries.

Jeremy Cook

Inspection Rejection: Why More Is Less in a Vision System
Jeremy Cook
3 comments
Albert Einstein has been quoted as saying, "Everything should be as simple as possible, but not simpler." I would never claim to have his level of insight -- or such an awesome head of ...

Jeremy Cook

Machine Fixes That Made Me Go 'DUH!'
Jeremy Cook
21 comments
As you can see in my bio at the end of this article, I work as a manufacturing engineer. One of my favorite things that happens on a Friday late in the afternoon is to hear my phone ring ...

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)