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AUTOMATIC STREET LIGHT CONTROL USING LDR full report


Posted by: seminar class
Created at: Tuesday 26th of April 2011 02:28:23 AM
Last Edited Or Replied at :Saturday 03rd of August 2013 07:51:35 PM
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t time. If any obstacle crosses the IR, automatically particular light will be ON, for few seconds.
In our project we use regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.
The programming language used for developing the software to the microcontroller is Embedded/Assembly. The KEIL cross compiler is used to edit, compile and debug this program. Here in our application we are using AT89C51 microcontroller which is Flash Program..................[:=> Show Contents <=:]



Embedded Temperature based Fan speed Controller using AT89S52 Microcontroller


Posted by: seminar class
Created at: Wednesday 06th of April 2011 11:26:08 PM
Last Edited Or Replied at :Wednesday 15th of February 2012 02:15:10 AM
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23]
Embedded Temperature Based Fan Speed Controller using AT89S52
Microcontroller

This project is a standalone automatic fan speed controller that controls the speed of an electric fan according to our requirement. Use of embedded technology makes this closed loop feedback control system efficient and reliable. Micro controller (AT89S52) allows dynamic and faster control. Liquid crystal display (LCD) makes the system user-friendly. The sensed temperature and fan speed level values are simultaneously displayed on the LCD panel. It is very compact using few components ..................[:=> Show Contents <=:]



mini projects microcontroller using 8051


Posted by: project topics
Created at: Wednesday 06th of April 2011 12:04:53 AM
Last Edited Or Replied at :Monday 30th of January 2012 10:07:41 PM
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o Frequency based Realtime Child monitoring and alarm system.
12. Transformer realtime temperature monitoring and thermal Overload protection
13. Automatic advanced Railway gate Control System.
14. Temperature based ceiling fan speed control system (230v AC Motor).
15. Embedded Realtime Clock based Industrial Devices Control System.
16. Industrial conveyer belt object counting system.
17. High Voltage Fuse blown Indicator with Display on Computer/PC
18. Pulse Width Modulation (PWM) Speed Control of a DC Motor
19. Infrared Remote based Electrical Device Control with Triac and Optically ..................[:=> Show Contents <=:]



automatic speed controller for fanscoolers


Posted by: 143com2me
Created at: Tuesday 23rd of February 2010 01:00:12 AM
Last Edited Or Replied at :Thursday 23rd of February 2012 04:03:46 AM
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it consist of IC NE555,CD4017B, 6v 100ohm SPDT relays 4nos,BC548transistor 5nos,13 diodes.
we need a detailed working ,block diagram and pcb design to make a mini project report
:idea:
the device presented here makes the fan run at full speed for a predetermined time.speed is decreased to medium after sometime.after a period of 8 hours fan /cooler is switched off.
http://www.electronic-circuits-diagrams.com/images/fans-3.jpg .
it consist of IC NE555,CD4017B, 6v 100ohm SPDT relays 4nos,BC548transistor 5nos,13 diodes.
we..................[:=> Show Contents <=:]



MICROCONTROLLER BASED AUTOMATIC POWER FACTOR CONTROLLING SYSTEM


Posted by: projectsofme
Created at: Friday 15th of October 2010 06:42:46 AM
Last Edited Or Replied at :Saturday 20th of July 2013 12:09:11 AM
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p in achieving the desired target. With the advent in technology, the existing systems are developed to have in built intelligence.

Description:

In our project, we are going to monitor the power of the system especially known as industries and controlling the power line using power factor. The power plant known as produces power for the working of the industries. Here the current transformers and potential transformers are widely used for analyzing the performance of the power plant and it is given to the circuit.
Then it gives to an ADC circuit for giving to the microcontroller. Th..................[:=> Show Contents <=:]



automatic temperature control of vaccum brazing furnace by using plc full report


Posted by: project topics
Created at: Tuesday 20th of April 2010 07:05:36 AM
Last Edited Or Replied at :Sunday 03rd of February 2013 09:19:41 AM
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der ON condition, the heater can be OFF when heat sink temperature goes excessively high.
c) The indicating lamps IL4 and IL5 are provided for over current and over temperature trip.
d) An extra normally closed terminal is provided to communicate other system from vacuum system
TROUBLE SHOOTING GUIDE:
Since the maintenance and troubleshooting of normal electrical items is well known and common, only the trouble shooting of electronic trigger control card is described here.
Sr.No Symptom Possible reason
1 No output 1. No power source available
2. fuse blown
3. com..................[:=> Show Contents <=:]



AUTOMATIC SPEED CONTROLLER FOR FANS WITH ON OFF CONTROL BY LIGHT


Posted by: project report tiger
Created at: Thursday 04th of March 2010 03:09:23 AM
Last Edited Or Replied at :Thursday 23rd of February 2012 04:03:37 AM
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)=Vcc/3
, dv^ Vcc-V(0-)
'1 D< RA + RB
(1)
VC1(0+> = VCC/3 (2)
1 2
1~3e
f (RA + Re)Cl)L
vC1 = VCC
(3)
Since the duration of the timer output high state(tH) is the amount of time it takes for the Vci(t) to reach 2Vcc/3,
A3
vci«) = !vcc-vcc
1ie
(RA+RB)C1
(4)
tH = C1(RA + RB)ln2 = 0.693(RA+RB)C1 (5)
The equivalent circuit for discharging capacitor CI when timer output is low as follows:
DVC1 ' 1
Ci^+R^vcr° (6)
t
2 (R,+RD)C1
VClW = 3Vcce <7>
Since the duration of the timer output low state(tL) is the amount of time it takes for the Vci(t) to reach Vcc/3,
h..................[:=> Show Contents <=:]



STEPPER MOTOR CONTROL WITH SELECTED STEPS FOR CONVEYOR BELT


Posted by: jagadeeshdeepu
Created at: Wednesday 20th of January 2010 10:50:43 AM
Last Edited Or Replied at :Wednesday 12th of January 2011 04:46:44 AM
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send me the my email is jagade..................[:=> Show Contents <=:]



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