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Title: 8 CANDIDATE QUIZ BUZZER USING 8051 MICRO CONTROLLER AT89C51
Page Link: 8 CANDIDATE QUIZ BUZZER USING 8051 MICRO CONTROLLER AT89C51 -
Posted By: seminar class
Created at: Friday 04th of March 2011 03:40:02 PM
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POWER SUPPLY
The input to the circuit is applied from the regulated power supply. The a.c. input i.e., 230V from the mains supply is step down by the transformer to 5V and is fed to a rectifier. The output obtained from the rectifier is a pulsating d.c voltage. So in order to get a pure d.c voltage, the output voltage from the rectifier is fed to a filter to remove any a.c components present even after rectification. Now, this voltage is given to a voltage regulator to obtain a pure constant dc voltage
Transformer ....etc
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Title: to demonstrate the working of a simple electronic buzzer
Page Link: to demonstrate the working of a simple electronic buzzer -
Posted By:
Created at: Monday 31st of December 2012 01:46:38 PM
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Title: working principle of electronic letter box
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Created at: Wednesday 17th of July 2013 06:41:37 PM
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Title: simple quiz buzzer circuit using led and buzzer without using led display
Page Link: simple quiz buzzer circuit using led and buzzer without using led display -
Posted By:
Created at: Sunday 14th of April 2013 03:00:05 PM
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Title: buzzer working principle pdf
Page Link: buzzer working principle pdf -
Posted By:
Created at: Tuesday 11th of October 2016 03:33:02 PM
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sir.i want the answer of electromagnetic buzzer can you please give me the answer? ....etc
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Title: description of electronic project timer with buzzer indicator
Page Link: description of electronic project timer with buzzer indicator -
Posted By:
Created at: Wednesday 16th of January 2013 05:05:06 PM
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Title: buzzer controller quize contest without microcontroller
Page Link: buzzer controller quize contest without microcontroller -
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Created at: Tuesday 01st of May 2012 05:09:05 PM
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hello sir i m a final year student in Electronic's and comm. Engg, i have complited my project buzzer controller for quize contest but i haven't sufficient data to make my major project file so please give me all documents about it's which is solve my problam thanking you
[email protected] ....etc
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Title: principle and working of electronic energy meter pdf
Page Link: principle and working of electronic energy meter pdf -
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Created at: Friday 05th of July 2013 06:10:04 PM
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Title: buzzer working principle pdf
Page Link: buzzer working principle pdf -
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Created at: Monday 19th of September 2016 08:42:13 PM
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Title: 8 candidate quiz buzzer using 8051 microcontroller at89c51 ppt
Page Link: 8 candidate quiz buzzer using 8051 microcontroller at89c51 ppt -
Posted By:
Created at: Friday 12th of October 2012 09:30:21 PM
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