Lecture Notes in the topic logic gates in physics for high school. This part only deals the first 2hours lecture in the topic. For more such lectures one needs to have good knowledge of the …Full description
In electronics, a logic gate is an idealized or physical device implementing a Boolean function; that is, it performs a logical operation on one or more logical inputs, and produces a single logica...
This is a useful summery for logic gates.This contains Logic information about Gates,Circuit,NOR,OR,BUFFER,AND,NAND,XOR,XNOR,
Copyright to brenen thayaparan
Experimental report on Logic GatesFull description
Digital Systems From Logic Gates to ProcessorsFull description
In this document we will be going through the basics of logic gates and digital circuits.
Descrição: the project contains introductions, circuits and all other important things. the project also contains the photos of the circuit prepared to make it look more realistic. downloading the project i...
Descripción: Digital Systems From Logic Gates to Processors
Physics Class 12 Project (Logic Gates)Full description
fully working on the breadboard
this project is using fuzzy logic controller to control the position of cannon
It is a sample of class 12th C.B.S.E. project related to Logic gatesFull description
Department of Electrical Engineering
EE 200 DIGITAL LOGIC CIRCUIT DESIGN
Design Project
StopWatch Done by Anwer Alsomaily 200841680 & Abdullah Al-Karairi 200923910 For Dr. K QURESHI
Introduction: Due to importance of time in exams competition and other situations in our life, we found that stopwatch is the most useful project we may do. This stopwatch should have START/STOP/RESET functions and it counts up to 100 minutes (99:59) then it rests itself.
Equipment & ICs:
4- Hexadecimal display 4- BCD counter (74-161) 1- 7408 AND Gate 1- 7400 NAND Gate 1- 7432 OR Gate
Reset Clock Start/Stop
Circuit logic work implantation:
Lab Work +5 V (RED) We used it as a power supply for all IC's 0V "ground" (Blue) We use it to set the initial value of the inputs (A,B,C,D) to be 0 To Ground All IC's. Load (Orange) We Connect it As Shown in the logic work Diagram; By that way 1st Counter will count up to 9 and rest it self at the same moment it gives a clock pulse to 2nd Counter 2nd Counter Will count up to 5 then repeat it self, Once It is be came 5 & 1st Counter 9 they will give a clock pulse to the 3rd Counter which will count up to 9 and by the same way 4th counter will be pulsed. Clock (white) Connected with SWETCH using And Gate to deactivate it when we want to stop counting and the output of this and is connected to this clock of 1st counter. Output "QA,QB,QC,QD" (Green) The output of the counters are connected to hexadecimal display. Clear (Black) We connected all the clear together and connect it to active high pulser.
The stopwach was working duo to this table:
ClK
Clear (invert)
Load
Display
up
1
1
Next state
up
0
x
0
up
1
0
Intial state (ABCD)
Defficalies:
At the beginning of our project we used 7493 BCD counter but we faced a problem that 7493 counter before it goes to the next state it go back to the initial state and start counting up to the needed state. So we tride to make the Counter using JK FF But when we did the simulation on logicworks we found the the connection was very complicated and it is very difficuat to do it on minilab. By searching on the Internet we found BCD counter 74_161 (Fig 2 Last PIG) wich is fuction well with our project. 7-segment displayer needs to be connected to a 7-segment decoder in order to reduce the number of ICs and the cost of the circuit we used HexDicimal Diplayer. (Fig1 Last PG)
Conclusion: At the end of our work the stopwatch was working as we planned. In this project we touched the exciting part of digital design every issue was exciting challenge. The most important part of this project that we covered what we have studied experimentally and practice a new experience; also we had a good review for the final Exam.
