 | | Solar Cell Output in Direct Sunlight
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Well, it finally got sunny here. In direct sunlight, the solar cell seems to put out about 4V, 135mA (24 years ago, 23-Mar-01, to lugnet.robotics, lugnet.dacta)
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| | Re: Solar Cell Output in Direct Sunlight
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(...) I'd suggest that you try this again mid-summer. The solar radiation angle is still fairly low at this time of year with much of the energy being scattered by the atmosphere as well as being spread over a larger surface area of the earth. I (...) (24 years ago, 25-Mar-01, to lugnet.robotics, lugnet.dacta)
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| | Re: Solar Cell Output in Direct Sunlight
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(...) Well, I could certainly create an artificial environment which would increase the solar cell's output without the need for scheduling another test on the summer solstice, if you were merely curious as to its maximum output based on the cell's (...) (24 years ago, 25-Mar-01, to lugnet.robotics, lugnet.dacta)
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| | Re: Solar Cell Output in Direct Sunlight
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(...) I agree - and another factor is the angle of the panel to the incident light. The amount of light varies as the cosine of the angle of the sun to a line thats perpendicular to the panel. Building some kind of a mechanism that tilts the panel (...) (24 years ago, 25-Mar-01, to lugnet.robotics)
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| | Re: Solar Cell Output in Direct Sunlight
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(...) The experts say that such a scheme can increase total power collected by up to 40%, though I'm not sure if this includes the power required to drive the steering mechanism. See: (URL) (24 years ago, 27-Mar-01, to lugnet.robotics)
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| | Re: Solar Cell Output in Direct Sunlight
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(...) was delayed by over 24 hours from crynwr.com to LUGNET, and Steve emailed me a copy of the reply as well, I assumed it was private correspondence and replied in kind. Here's most of what was said: Steve Baker wrote: (...) (24 years ago, 27-Mar-01, to lugnet.robotics)
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| | Re: Solar Cell Output in Direct Sunlight
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(...) That sounds about the right number. Whether it's enough to cover the cost of driving it depends on the nature of the vehicle. If it's something that only goes in straight lines then in can adjust the panel one time - and then only have to make (...) (24 years ago, 27-Mar-01, to lugnet.robotics)
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| | Re: Solar Cell Output (Shell logo)
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This is may be a bit Off Topic With all the talk about the lego solar cell, (and cap) I went and got one of each. They are a nice curiosity, but as of right now, I can't seem to find any robot applications. Maybe when the sun comes back to Toronto, (...) (24 years ago, 1-Apr-01, to lugnet.robotics)
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| | Re: Solar Cell Output (Shell logo)
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(...) I believe the cell is made by Shell's photovoltaics division. (URL) Regards Micah J. Mabelitini - LUGNET #918 The University of Kentucky SECC Middlesboro Academic Skills Resource Center accutron@kih.net - (URL) (24 years ago, 2-Apr-01, to lugnet.robotics)
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| | Re: Solar Cell Output (Shell logo)
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Here's another link. (URL) Regards Micah J. Mabelitini - LUGNET #918 The University of Kentucky SECC Middlesboro Academic Skills Resource Center accutron@kih.net - (URL) (24 years ago, 2-Apr-01, to lugnet.robotics)
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| | Re: Solar Cell Output in Direct Sunlight
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I have a Halogen uplight lighting a room and my solar cell will power a motor, with no load up to a distance of around '6 (3' work height) from the light pole. This will fluctuate according to the reflectance's of the ceiling, walls, etc. Rose (...) (24 years ago, 6-Apr-01, to lugnet.robotics, lugnet.dacta)
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