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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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ile phone charger service. Recommended locations include: Hotels, conference centers, exhibition halls, serviced offices, exchange halls, motels, leisure centers, health clubs, training centers, golf clubs, retail outlets, shopping malls, Internet cafes, universities, colleges, hall of residence, airports, train terminals, etc., so that the mobile phone users can reactivate a low or dead battery by simply plugging in and charging for one rupee. Here is a design based on ATMEL 89c51 a 40-pin micro controller that does the countdown timing for a period of 3 mints with LCD displays showing the ac..................[:=> 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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N
JAVAKUMARAN. M
SIVAKUMAR. P. K
In partial fulfillment for the award of the degree
Of
BACHELOR OF ENGINEERING
In
ELECTRICAL AND ELECTRONICS ENGINEERING



SREE MOTHILAL KANHAIYALAL FOMRA INSTITUE OF
TECHNOLOGY, CHENNAI-623 103


abstract

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 ..................[:=> 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 all details with ckt diagram, parts , materials description of successfully checked solar ..................[:=> 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 :Friday 25th of January 2013 12:26:44 AM
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Dear sir.

I am nandish engineering student. i want pdf of..................[:=> 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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ters).
3. Radio charging
Radio charging is used for charging items with small batteries and low power requirements, such as watches, hearing aids, medical implants, cell phones, MP3 players and wireless keyboard and mice. Radio waves are already in use to transmit and receive cellular telephone, television, radio and Wi-Fi signals. Wireless radio charging works similarly. A transmitter, plugged into a socket, generates radio waves. When the receiver attached to the device is set to the same frequency as the transmitter, it will charge the device's battery.
.
4.0 PROBLEM STATEMENT ..................[:=> 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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y. If the panel stops rotation then DTFD detects this type of fault. The mounting strategy of this sensor is same as that of NTFD except that it is mounted in the west.
Night and Cloud Detection
In a cloudy day light intensity is less than a normal day. Similarly during night, light intensity is far less than a cloudy day. So the night and cloud sensors work on this principle to 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 ..................[:=> 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
my email ..................[:=> 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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de clamped rectifier is proposed to achieve a unity power factor, balanced neutral point voltage and constant DC-bus voltage. Four power switches are used in the rectifier to generate a three-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 ..................[:=> Show Contents <=:]



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