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Return to: Electronics related to alternative Energy |
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#Post#: 2379-------------------------------------------------- |
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Ideas on how to light these Leds |
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By: barbados Date: April 22, 2014, 7:00 pm |
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Hi Guys, |
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I am really enjoying this forum, it just seems to be a hot bed |
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for ideas and innovations! |
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I recently came across these leds ( |
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http://www.goldmine-elec-products.com/prodinfo.asp?number=G19653<br |
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/>, |
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http://www.goldmine-elec-products.com/prodinfo.asp?number=G19461<br |
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/>) and wondered if they could be economically driven by joule |
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lamp coils? |
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Looking forward to hearing your thoughts. |
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Thanks |
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Andre |
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#Post#: 2381-------------------------------------------------- |
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Re: Ideas on how to light these Leds |
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By: lynx wind Date: April 22, 2014, 7:11 pm |
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The first one listed just needs 9-12 vdc. You might be able to |
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pulse the DC and fool the eye into thinking its on all the time. |
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I'd use the circuit out of a piezo buzzer (remove the buzzer) |
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and run to the base of a 2N3055 transistor. That will turn the |
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transistor on and off at a high rate and you might save some |
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current. |
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#Post#: 2382-------------------------------------------------- |
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Re: Ideas on how to light these Leds |
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By: happygolucky Date: April 22, 2014, 7:32 pm |
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yes, very popular with |
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http://forum.arduino.cc/index.php?topic=194720.0 |
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#Post#: 2383-------------------------------------------------- |
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Re: Ideas on how to light these Leds |
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By: nessprojects Date: April 22, 2014, 7:43 pm |
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Firstly Hi barbados and welcome, |
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Both of these led's must be run at the correct current or you |
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will simply burn them out. |
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the 10w led is comprised of 3 rows of 3 colums of 1w led's, now |
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generally a 1w led can be driven with a max of 350ma hence |
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multiply this by the 3 gives the 1 Amp specified or near enough. |
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The smaller one needs a lower current because of the higher |
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voltage + they are not going to be as bright. |
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I have a scematic of a circuit to run led's at any given current |
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rating and will post it as soon as i sort this tempremental |
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computer out. |
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#Post#: 2391-------------------------------------------------- |
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Re: Ideas on how to light these Leds |
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By: barbados Date: April 23, 2014, 2:22 pm |
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Hi Guys, |
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Thanks very much for your contributions, i will take them on |
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board and make an effort to get something going. |
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Though not an active contributing member, i make it a point to |
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always check this forum and review submissions. |
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There is always something to learn! |
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Thanks again. |
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Best |
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Andre |
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