Wee, more protoboards! Now this is the last batch, we don't got no more. Next time it will be something else, I promise. PadBoard-1 Pad-per-Hole, 80x50mm Solder Protoboard $3.75 A tight and tidy one-pad-per-hole, plated-through, double-sided board. Ideal for wildly-wired, small projects! PadBoard-2, Pad-Per-Hole, 80x100mm Solder Protoboard $6.82 For the ultimate in protoboard flexibility, here's […]
2001 Solar Cell Analysis Data - Direct S...
Dave Hrynkiw
July 12, 2007
| Overview | ||
| At Solarbotics, we've been getting quite a few questions regarding the "real-world" performance of our solarcells. Although we do have the official Panasonic Sunceram datasheets, it is written in a quite technical manner and does not include practical design data. With that in mind, we have generated the following - the first of three sets of data for use by the BEAM community. This first set of data is taken with direct-sunlight performance in mind. The second and third sets will be measured under halogen and incandescent lighting (stay tuned...). | ||
| Data Acquisition Procedure | ||
| Solarcell voltage across resistance values recorded on June 20 between 13:07 and 13:25. Solarcell capacitor charging values for capacitors between 1000uF and 4700uF recorded on June 22 Between 13:30 and 14:00.Solarcell capacitor charging values for capacitors between .047F and 1.0F recorded on June 25 between 13:25 and 14:10.Summer solstice on June 21, maximum sunlight at 13:37 (located in Calgary, Alberta, Canada).Testing apparatus consists of a basic stamp 2 for data logging and a ADC0831 chip for analog to digital conversion, 8 bit accuracy (0.02 volt resolution). When testing multiple resistive loads, relays were used to switch the load across the solarcell with a 200ms settle time. The basic stamp controlled sequencing and data logging by measuring the voltage across each switched load.When testing the charge rate of multiple capacitors, the capacitor was shorted by a relay for a period of five seconds, then released to charge by the solarcell. Voltage readings were taken between .2 and 5 seconds, depending on estimated total charge time. An 80% open voltage line is also indicated on the graphs. |
||
| Charge Times sorted by Solar Cell | ||
|
||
| Charge Times sorted by Capacitor | ||
| Solar Cell output under Resistance | ||
| Complete Data Sheet Download | ||
| For those of you who would rather have access to the complete data sheets and charts for the 2001 Solar Cell Analysis, we provide this information in the Microsoft Excel format.Solarcell Data Sheet A - 88KB Solarcell Data Sheet B - 388KB |
||
| Disclaimer: | ||
| Although the information is provided freely, we request that any reproduction or reference to the above data be included with proper accreditation to Solarbotics Ltd. Additionally, although we have performed these tests in good faith, we do not and cannot warrantee this data in any way. | ||
MORE POSTS
Tasty Treats and New Treats, Too
A couple of weeks back we held an open house for Calgary's Protospace group. Many BBQ'd items were consumed, many objects were lazored, and many people seemed to be walking around in a stupor of admiration for all the nifty bits and pieces of equipment we have on hand. We had a good time visiting […]
Monday Projects: Lasercut Stamps - Resea...
Yours truly is about to teach a mixed media class and wanted to try making some stamps to enhance my (and my students') collaging experience. Stamps are used to create background patterns and give interest to surface design in 2d mixed media techniques. There is a variety of stamps available both online and in craft […]
Christmas/New Years Holiday Hours
Well, it's that time of year for the Solarbotics staff to go spend time with friends and family. With that said, we hope that you all have a safe and happy holiday season, whatever your plans may be. Wednesday, December 24 - Sunday, December 28 -- Closed Monday, December 29 - Wednesday, December 31 -- […]
Solarbotics has been operating for more than 25 years, bringing electronics know-how and supplies to both the electronics professional and hobbyist. We'll be happy to help you too!
Solarbotics, Ltd. is not responsible for misprints or errors on product prices or information. For more information, please see our Terms and Conditions.
Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.