Rob Spiegel
User Rank
Re: Solar Up-Converter
Rob Spiegel   5/11/2012 5:05:27 PM
That's right, Chuck, this gadget is very cheap, and the parts are readily available. That tends to be one of the recurring features of Gadget Freak.

User Rank
Author contact and comment
wgrill   5/9/2012 12:35:41 PM

So far everyone seems to like both the subject and implementation.

There was a companion article published in EDN (Dec1,2011 'A Diode Ladder Multiplies...') related to this application. EDN is a Design News sister publication, It was developed as part of this project but I opted for the implementation finally seen here, which provides a more incremental and potentially useful solution set. I also believed it would be easier to describe and create the analysis included in the article.

The article includes a power load analysis and some information about battery rating characteristics. I would still look forward to hearing comments about how the simple charger, shown in the schematic or what and how those other losses, only mentioned in the article, effect the application.

The project worked out pretty good and the final assembly has my 'cool' factor stamp of approval. The author can be reached at contact@riverheadsystems.com

WGrill Loveland,CO

William K.
User Rank
Voltage up-converter.
William K.   5/8/2012 10:26:31 PM
The concept is good, and there is always room for another version of this type of equipment. The challenge being that the solar cell will only produce a given number of volt-amps, So it is not something-for-nothing. There is also the overhaed for the converter. So there is indeed a tradeoff. Increasing the intercepted power requires more solar cells, which do indeed cost more, and take up more room. 

Presently most solar cell installations need to have a voltage changer someplace in the system, which validates this as a good idea.

User Rank
upconversion rocks
cvandewater   5/8/2012 2:20:11 PM
While it is technically possible to place enough solar cells in series to gain a voltage high enough to operate electronics and charge batteries, but I know of a company who studied the solutions for solar-charging cell phone and they came to the conclusion that using a *single* cell (which delivers around 0.45V at optimal irradiation and loading) and upconverting this to the battery voltage was more efficient and a better solution than using a series of cells. It may have been because of variation in quality and the shadowing which causes a string to fail to deliver as soon as a shadow is present on one cell... So, they designed an up-converter from 0.45V to battery level (typical Li-Ion around 4V).

User Rank
Re: Solar Up-Converter
Mydesign   5/8/2012 5:14:44 AM
1 saves
Apreher, you are right. I think the system can expand further for different applications even for home automation. Since it’s a self powered device using Solar panel, we can call it’s as a green device or ecco friendly device.

User Rank
Great Stuff
tekochip   5/7/2012 9:42:08 PM
Excellent article on utilizing off the shelf solar products for a wide variety of projects.

Charles Murray
User Rank
Re: Solar Up-Converter
Charles Murray   5/7/2012 5:59:46 PM
I agree, Al. It's very creative. The author also did this for relatively low cost. The most expensive item on the BOM is the Prioto board at $13.55. Given the kinds of apps that this is targeted for, the costs are tolerable.

User Rank
Re: Solar Up-Converter
naperlou   5/7/2012 10:41:08 AM
apresher, I think you are correct.  There are a lot of possibilities in the home for this kind of thing. 

What I like most is the line about taking the products apart and adding components.  My sons and I do this a lot with computers, of course.  We are just getting in to other types of devices. 

I once worked at a large aerospace contractor where there was a senior engineer who took things apart all the time to see how they worked.  He needed little prompting.  He also could get away with it becuase of his standing with the company.  So, if we wanted something taken apar that was expensive (and probably wouldn't go back together again) we woulld put it on his desk when he was out.  We would also take off all the stickers that said do not disassemble.  He would always take it apart.  It was great! 

User Rank
Solar Up-Converter
apresher   5/7/2012 8:36:06 AM
Very creative application for remote sensors.  It seems like there is a lot of room for innovative control solutions for home automation, ways to save energy or monitor within the home environment.

Partner Zone
Latest Analysis
Using 3D-printing to integrate electronics is an enthralling idea, but there's a long road ahead to commercialization.
What should have been an easy microcontroller upgrade opens up a mysterious web of problems.
Prime Minister Narendra Modi is seeking help from Tesla Motors' Powerwall technology for solar-energy storage in India.
The September release spotlights Autodesk's long-term strategy for provisioning of its CAD, CAM, and CAE software and its commitment to cloud delivery.
The transformative nature of designing and making things was the overarching, common theme at separate conferences held in Boston by two giants in the PLM space: Autodesk, with its Accelerate 2015, and Siemens’s Industry Analyst Conference 2015.
Design News Webinar Series
10/1/2015 11:00 a.m. California / 2:00 p.m. New York
9/10/2015 11:00 a.m. California / 2:00 p.m. New York
8/13/2015 11:00 a.m. California / 2:00 p.m. New York
6/25/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 5 - 9, Standards for the Internet of Things (IoT)
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7

Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service