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SOLAR AUTOMATIC MOBILE CHARGER WITH PAY SYSTEM


Posted by: seminar class
Created at: Wednesday 23rd of February 2011 04:41:59 AM
Last Edited Or Replied at :Friday 12th of July 2013 12:58:07 AM
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form of solar cell, producing energy for plants and trees to grow in a chemical process known as Photosynthesis.
• A solar panel or battery converts the sun's energy to electricity. Gerald Pearson, Calvin Fuller and Daryl Chapin invented the first sun energy battery in 1954. The inventors created an array of several strips of silicon (each about the size of a razorblade), placed them in sunlight, captured the free electrons and turned them into electrical current. Bell Laboratories in New York announced the prototype manufacture of a new solar battery. Bell had funded the research. The fi..................[:=> Show Contents <=:]



SOLAR POWER GENERATION WITH AUTO TRACKING SYSTEM


Posted by: project report helper
Created at: Thursday 30th of September 2010 12:51:06 AM
Last Edited Or Replied at :Thursday 02nd of February 2012 10:17:03 PM
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d to switch on the lights.
At present solar electric power generation systems are having fixed solar panels whose efficiency of generation is less. The aim of the project is..................[:=> Show Contents <=:]



solar tracking system


Posted by: AMISH GHEEWALA
Created at: Wednesday 04th of August 2010 06:32:50 AM
Last Edited Or Replied at :Wednesday 03rd of November 2010 06:12:03 AM
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kindly provide al..................[:=> Show Contents <=:]



Smart Solar Tracking System For Optimal Power Generation Ppt


Posted by: nandish36
Created at: Friday 04th of June 2010 08:29:43 AM
Last Edited Or Replied at :Wednesday 15th of October 2014 12:22:18 PM
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Dear sir.

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wireless charger full report


Posted by: project topics
Created at: Friday 02nd of April 2010 12:05:22 PM
Last Edited Or Replied at :Thursday 03rd of January 2013 12:50:22 AM
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C), meaning that usually every part of the circuit had its own package. These packages were also very large. These large circuit boards required large amounts of power, which meant bigger batteries. This reliance on power was a major contributor to the reason these phones were so big.
Through the years, technology has allowed the cellular phone to shrink not only the size of the ICs, but also the batteries. New combinations of materials have made possible the ability to produce batteries that not only are smaller and last longer, but also can be recharged easily. However, as technology has a..................[:=> Show Contents <=:]



Automatic Sun Tracking System ASTS


Posted by: electronics seminars
Created at: Thursday 24th of December 2009 03:36:29 AM
Last Edited Or Replied at :Monday 21st of July 2014 10:48:22 AM
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(figure-8). The automatic sun tracking is accomplished according to following 3-step diagram.

Figure6. Basic Automatic Sun Tracking Operation
¢ Step-1 shows that when the sun is in front of solar panel, both sensors i.e. STS-1 and STS-2 are getting same amount of light.
¢ In step-2, after some time as the earth rotates the solar panel gets repositioned with respect to sun and STS-1 obtains less amount of light. At this point the LDR i.e. STS-1 sends signal to the microcontroller (figure 3). Then the controller1 rotates motor, resulting the rotation of solar panel towards the sun.
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turbo charger


Posted by: rajkiran
Created at: Wednesday 28th of October 2009 11:30:34 PM
Last Edited Or Replied at :Saturday 03rd of April 2010 01:23:15 PM
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sir im btech mechanical final year student ,
i want mo..................[:=> Show Contents <=:]



Automatic Solar Tracker


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:16:01 PM
Last Edited Or Replied at :Tuesday 01st of January 2013 10:31:55 PM
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ages. The proposed rectifier can be controlled to operate in two- or-three ? level PWM.
Based on the model analysis, the switching signals of the power switches can be derived from the measured line current error and the mains voltage. Experimental results show a good line current waveform with almost unity power factor and low current harmonics to meet the requirements of IEC 1000-3-2 class A. The transient response due to load change is about one cycle and voltage drop is about 5V. According to measured results the proposed rectifier has the properties of high power factor, low current dist..................[:=> Show Contents <=:]



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