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Study the working decoder for conversion of BCD into 7segment display code

Posted by: seminar class
Created at: Friday 13th of May 2011 06:11:02 AM
Last Edited Or Replied at :Friday 13th of May 2011 06:11:02 AM
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D display, the ICs are IC 7448, IC 74248, IC 7449 etc. They have active high, open collector outputs.
Working of the circuit –
1) When BCD inputs from 0000 to 1001 are applied at the input terminals, the IC produces equivalent outputs at its output terminals from a–g. The 7–seg display is common anode type.
2) Suppose BCD input is DCBA = 0101. It is equivalent to decimal 5. This input is converted into equivalent 7–seg code by the IC and its outputs abcdefg = 0100100. For the input DCBA = 1000, all segments of the display will glow to show decimal 8 and outputs abcdefg = 000..................[:=> Show Contents <=:]

Automatic car parking system

Posted by: seminar project explorer
Created at: Monday 14th of March 2011 06:35:25 AM
Last Edited Or Replied at :Friday 12th of October 2012 02:54:42 AM
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essarily in that sequence.
For identifying the states and the order in which they occur, we give the Y1, Y3 and Y2 lines after logical inversions to the clock inputs of the three successive flip-flops, respectively. A Vcc signal is the input to the first flip-flop, while each subsequent input is the output of the previous flip-flop. The logic states of the three coded output lines are inverted because these are active low, while the 74LS74 D flip-flops are triggered by the rising edge of the clock signals.
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Posted by: seminar class
Created at: Monday 28th of February 2011 02:22:18 AM
Last Edited Or Replied at :Thursday 04th of April 2013 11:34:57 AM
counting system using toll pass system , jaseel swadakhath, automatic door , electronic project automatic man counter at door, seven segment display counter , jaseel pdy gmail com, door counter electronics project , relay driving circuits using ldr and optocouplers, 7 segment driver using gates , automatic door open close system by count down counter using 8051, automatic door in theatres with down counter display , two digit down counter up, ideafield co th loc es , different types of chajja,


We have introduced a project named Automatic door system with down counter display in theatre to reduce the rush of people in theatre and also to reduce the malpractices which are held in theatre.
This project had made successful with help sufficient components like LDR, Optocoupler, TIP122, relays, S-R flip flop, counter ic 4510,driver ic 7448,7 segments, power supply etc.
We are proudly introducing to you an “AUTOMATIC DOOR SYSTEM” ..................[:=> Show Contents <=:]

digital electronics project

Posted by: project topics
Created at: Wednesday 29th of December 2010 06:53:16 AM
Last Edited Or Replied at :Friday 23rd of November 2012 02:14:52 AM
single chip timer with digital clock and calender, multi melody generator with instrumental effect , a single chip timer with digital clock and calender, nending machine project in vhdl , staircase climbing robot rf controlled kit price, vending machine using vhdl project , a single chip timer with digital clock and calendar project, www indvidval com , 4 digit 7 segment multiplex display, vhdl fpr cw receiver , electronic voting m c vhdl code, plc based object counter using conveyor belt , electronic dice using at89c2051, wireless biomedical monitoring system , digital electronics, digital electronics project , digital electronics project ideas,
122. Priority for Emergency Vehicles in Traffic Signals
123. Condenser Mic Audio Amplifier
124. speech processing using Kalman filter
125. Prep - Paid Energy Meter
126. RFID Based Attendance System
127. A Fuzzy based PID Controller using VHDL/VERILOG for Transportation
128. Traffic Controller
129. Remote Controlled Land Rover
130. CD-ROM Drive As Digital-Audio CD-Player
131. Specifications
132. Solar Panel battery charger
133. Implementation of image slicing using MATLAB.
134. Aqua robot based on Advanced PIC microcontrollers
135. Floating-point multiplication (VHDL).
136..................[:=> Show Contents <=:]

electronics project design

Posted by: project topics
Created at: Wednesday 29th of December 2010 06:52:46 AM
Last Edited Or Replied at :Wednesday 29th of December 2010 06:52:46 AM
programs for voters identification system using labview , dynamic temperature indicator and controller project, who s first game indicator , ppt finger impression based ration card system, metronome program vhdl , electronic voting m c vhdl code, temperature controlled water bath , atmega16 asm program for mobile controled robot, design of automatic off timer for cd players , thermistor thermometer 7 segment vhdl project, cardiac arrest auto car control using gsm , fuse cum power failure indicator, bank token apparatus ,
age Stabilizer Using Autotransformer
125. Power generating station automation using PLC with high protection.
126. Flashing Brakelight
127. Home security system.
128. MicroController based Office Automation for Saving Electricity
129. Song Number Display
130. Help Quit Wateh
131. Auto braking system with auto path changer
132. Wheel Angle Indicator
133. Shortwave Transmitter
134. Keeps distance warning system.
135. Temperatures Indicator & Controller Using AT89C51
136. Control the mechanical river with the help of ..................[:=> Show Contents <=:]

electronics project for final year

Posted by: project topics
Created at: Wednesday 29th of December 2010 06:24:05 AM
Last Edited Or Replied at :Wednesday 29th of December 2010 06:24:05 AM
automated vehicle identification and toll pass system, project on smoke sensor using microcontroller 8051 , project report on low cost rain gauges detectors, pic microcontroller based cardiac pacemaker , 4 digit 7 segment multiplex display, final year project on conductivity meter , pyroelectric fire alarm using 89c51 8051, melody generator pic controller , walking stick with heart attack 8051, documentation of ionizer mains 230v ac , 65 digital thermostat with lcd temperature display, parallel telephone with secrecy and call prevention using scr , coding for greenhouse robot using pic microcontroller,
or Using Chip-On-Board
5. Six Channel Petrochemical Fire Monitoring And Control Station
6. PIC microcontroller based Automatic tank filling
7. JPEG compression using DCT.
8. Implementation of Fragile Speech watermarking.
9. Irrigation Robot
10. Micro controller based temperature LCD Display
11. Anti-Theft Alarm For Bikes
12. Implementation and analysis of decision feedback equalizers
13. MICROCONTROLLER BASED Temperature Monitoring using Thermocouple
14. Prediction and Prevention System to Avoid Train Collision
15. Industrial security system.
16. WALKING STICK WITH HEART ATTA..................[:=> Show Contents <=:]

Simple digital stopwatch using at89s51 Microcontroller

Posted by: project report helper
Created at: Thursday 14th of October 2010 05:57:00 AM
Last Edited Or Replied at :Tuesday 19th of March 2013 02:19:53 AM
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will show 00 at the startup
• Press the switch SP1 to get the watch to run
• Press the switch again to stop the watch
• To start the watch press the same switch again
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Posted by: project report tiger
Created at: Thursday 04th of March 2010 03:43:51 AM
Last Edited Or Replied at :Thursday 04th of March 2010 03:43:51 AM
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+0.3V Operating Temperature -20°C to 75°C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maxi¬mum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged expo¬sure to extreme conditions may affect device reliability.
D.C. Characteristics Ta=25°C
Symbol Parameter Test Conditions Min. Typ. Max. Unit

VDD Conditions

VDD Operating Voltage ” ” 2.5 5 5.5 V
IDD Oper..................[:=> Show Contents <=:]

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