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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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• Current-limiting. By placing a resistor in series with another component, such as a light-emitting diode the current through that component is reduced to a known safe value.
• An attenuator is a network of tw..................[:=> Show Contents <=:]


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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Solar energy is the most abundant stream of energy. It is available directly as solar isolation and indirectly as wind energy. Solar energy has the sources of renewable energy. Its potential is 178 Billion MW, which is about 20,000 times the world’s demand. Sun sends out energy in the form of electromagnetic radiation.
In this project we use the solar energy for generation of electrical energy, by using the Solar cells. The solar cells receive the solar energy. The solar cells operate on the photo-electric energy by using solar cells principle. The en..................[:=> Show Contents <=:]

solar tracking system

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 all d..................[:=> 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.

I am nandish engineering..................[:=> Show Contents <=:]

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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t is primarily empirical. There are many variables in the system that can change the voltage that is developed. The stage capacitors need to be optimized. The number of stages needs to be determined that, combined with the capacitor values for each stage, will result in a sufficiently high voltage level to turn on the phone and charge the phoneâ„¢s battery. Also, a capacitor can be used across the output as a filter to provide a flat DC signal and store charge. The value of that capacitance also needs to be determined. There really are no fixed parameters for any of these values. The only ..................[:=> 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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anel and computer terminal.

Figure 9. Flow Chart showing automatic operation of ASTS

Computer Based Control Unit
This is completely software based control, written in VB 6.0. It incorporates a GUI (figure-10) and a Database, linked with Microsoft Access. Using this software the computer serially communicates (RS232) with the ASTS. The Slave microcontroller (89c51) of the system makes this communication successful. Due to some fault if the solar panel stops rotating, then with the help of this software a user can:
¢ rotate the solar panel manually.
¢ stop all operations of ASTS ..................[:=> Show Contents <=:]

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 more information about fabrication of turbo c..................[:=> 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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three-level instead of a two-level PWM scheme are that the blocking voltage of each power switch is clamped to half the DC-bus voltage (if the off ?state resistance of power switches is equal),and the voltage harmonic on the AC side of rectifier is reduced.

A novel single phase neutral point diode clamped rectifier has been proposed to achieve high power factor, low current distortion, low peak factor, and stable capacitor voltages. 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 switch..................[:=> Show Contents <=:]

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