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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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uit is known, then a resistor can be used to create a known potential difference proportional to that current. Conversely, if the potential difference between two points in a circuit is known, a resistor can be used to create a known current proportional to that difference.
• 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 two or more resistors (a voltage divider) used to reduce the voltage of a signal.
• All resistors dissipa..................[:=> 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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al 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 energy from the photo voltaic cells is used 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 to introduce the SOLAR TRACKING to the existing fixed solar panels, thus we are maintaining the constant maximum power output. Thus by using this tracking system we can increase the conversion efficiency of the so..................[:=> 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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kindl..................[:=> 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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g in about 2 hour charging time from 3.2 V to 3.9 V. Here it was about 4 mV per second, resulting in about 3 hour charging time. In previous research, the battery charged at about 2 mV per second. That is almost 6 hours charging time, so we have almost cut the charging time in half.
SYSTEM SPECIFICATION
This research project 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 resu..................[:=> 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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o detect the event. To sense a smaller change in light intensity cloud sensor is more sensitive than the Night sensor. In case of Night event, the microcontroller stops all operations of the system and repositions the solar panel towards east to track the sun for next morning.



Figure8. Sensor mounting assembly on solar panel


CONTROL STRATEGY OF ASTS
For a successful operation, the ASTS has two types of control approach:
¢ Automatic Control
¢ Manual Control
Automatic Control
With the help of an efficient algorithm (written in C) only one Master Microcontroller1 is being ..................[:=> 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 charger
..................[:=> 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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hree-level PWM wave form on the rectifier terminal voltage.

The line current command is derived from a DC-link voltage regulator and an output power estimator. The hysteresis current Controller is used to track the line current command. To balance the neutral-point voltage, a capacitor voltage compensator is employed. The main advantages of using a 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 rectifi..................[:=> Show Contents <=:]



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