Seminar on Logic Gates Simulator

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Transcript of Seminar on Logic Gates Simulator

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AMRITA MORE NEHA BHEDA DHANASHREE GANPULE

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Abstract :๏ A “ logic gate ” performs a logical operation

on one or more logic inputs and produces a single logic output.

๏ The logic normally performed is Boolean logic and is most commonly found in digital circuits.

๏ Logic gates are primarily implemented electronically using diodes or transistors.

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Overview : ๏ With logic gate Simulator you can design and simulate

digital logic circuits with the help of logic gates like AND, OR, NOT etc. The following type of logic gates are included:

๏ Basic: AND, OR, Not.

๏ Inputs: Switch, number input for decimal and hexadecimal values.

๏ Output: LED, LCD for decimal and hexadecimal values.

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Logic gate symbols :๏ The Traditional symbols have distinctive shapes

making them easy to recognise so they are widely used in industry and education.

๏ An AND gate, OR gate, and NOT gate.๏ A NOT gate is also called an INVERTER.๏ When these gates are properly connected, it creates a

logical circuit.

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Present Method :๏ The recognition of need is the first step in

developing the software. ๏ First step towards the solution is defining the

problem.๏ This needs the preliminary survey about the

current system and what are the drawbacks of the current system and whether an alternative system can solve the problem or not.

๏ If the problem is serious enough then management needs to have an expert to look at it.

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๏ The development process of a hardware unit may take several months or even years, and the costs of instrumentation needed for its fabrication may reach several billions of dollars.

๏ Therefore circuit simulations done before fabrication have become an important and necessary step to avoid design error.

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In short “recognition of need” is nothing but:-

๏ To find out what are the limitations in current system.

๏ Can the current problems solved and how?

๏ Determining the market request to change, improve or enhance an existing system.

๏ Make a list of objectives for new system.

๏ Write down the problem definition for “existing system”.

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Drawbacks of Present Method :

๏ In today’s technical world each and every system we are using is a digital system. But time spend to make 1 digital device is very huge and the major problems are faced after creating it.

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Problems such as :

๏ Time to create a system.๏ Time to test the system.๏ Check the system for no errors๏ Rectifying the errors.๏ Replacing some faulty component.๏ Cost to repair a new faulty device.๏ Wastage of time and resources to repair a newly

created device.

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Proposed method :

๏ As we just discussed, Simulators are the only way to resolve the above defined problems; we just review why simulation is selected as the solution.

๏ These problems were very huge and hence needed to be resolved by some of the system. The first step to resolve the above problems are “SIMULATORS”.

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Why Simulation?

๏ We here want to give the main reasons for our belief that such computer simulation is becoming an increasingly more important method.

๏ This is the extremely rapid development of computer technology.

๏ The development appears to follow what is called Moore's law: For a computer of a given price, there is a doubling in speed and capacity almost every 18 months.

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Circuit simulation can be classified into four groups:

๏ Behavioral or functional simulation in which circuit elements are modeled as functional blocks.

๏ Gate-level logic simulation in which a circuit is modeled as a collection of logic gates.

๏ Switch-level simulation in which circuit elements are modeled as transistors.

๏ Circuit level simulation In which resistors and wires with propagation delays are also represented.

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Objectives of Our Solution :

๏ Easy GUI to create a digital design.

๏ Way to pack a created design and reuse it in any application.

๏ To create a distributed system.

๏ To provide built in tutor.

๏ Easily upgradable.

๏ Tested software which provides accurate outputs.

๏ designing circuits.

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SYSTEM DESIGN :๏ ART OF DEFINING THE ARCHITECTURE

COMPONENTS, MODULES ,INTERFACES

TO SATISFY SPECIFIED REQUIREMENT.

๏ MAIN GOAL – USER FRIENDLY.

๏ SO SYSTEM DESIGN IS IMPORTANT IN OUR PROJECT.

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DATA FLOW DIAGRAM

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Level 0 DFD :

:

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FEASIBILITY STUDY OF OUR PROJECT :

๏ TECHNICAL FEASIBILITY : Technical resources such as compilers ,

interpreters for java are easily available.

๏ OPERATIONAL FEASIBILITY : Operations of logix is very simple &

user-friendly. It requires java enabled system.

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Application

๏ Circuit designing is very easy.๏ Circuit testing is very easy.๏ It is used to rectify the errors in

circuit.๏ It can be used in engineering

colleges for teaching purpose.

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Conclusion :

๏ Thus we can conclude that many digital circuits are designed using Basic logic gates.

๏ By using the software logic gate simulator we can

easily design or create the circuit based on logic gate.

๏ The circuit designed with the help of this software are error/bug free.

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