Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)


Tags: Electronics, Digital, Fundamentals, Fundamentals of Digital Electronics ppt,
 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Fundamentals of Digital Electronics ppt
Post: #1

Fundamentals of Digital Electronics


Introduction

Digital electronics is one of the fundamental courses found in all electrical
engineering and most science programs. The great variety of LabVIEW
Boolean and numeric controls/indicators, together with the wealth of
programming structures and functions, make LabVIEW an excellent tool to
visualize and demonstrate many of the fundamental concepts of digital
electronics. The inherent modularity of LabVIEW is exploited in the same
way that complex digital integrated circuits are built from circuits of less
complexity, which in turn are built from fundamental gates. This manual
is designed as a teaching resource to be used in the classroom as
demonstrations, in tutorial sessions as collaborative studies, or in the
laboratory as interactive exercises.
The order of the labs follows most electronic textbooks. The first six labs
cover the fundamental circuits of gates, encoders, binary addition,
D-latches, ring counters, and JK flip-flops. Many of the VIs are suitable for
both classroom demonstration and laboratory exploration.
The second set of six labs cover advanced topics such as DACs, ADCs,
seven-segment displays, serial communication, and the CPU. These are best
done in the context of a digital electronics lab, comparing the LabVIEW
simulations with real integrated circuits. In each case, you can enhance
simulations presented in the text by using a National Instruments DAQ
board to interact with the real world through LabVIEW digital I/O, analog
out, analog in, and serial VIs.

Encoders and Decoders

An encoder converts an input device state into a binary representation of
ones or zeros. Consider a rotary switch with 10 positions used to input the
numbers 0 through 9. Each switch position is to be encoded by a unique
binary sequence. For example, switch position 7 might be encoded as 0111.
A decoder performs the opposite conversion, from binary codes into output
codes.

Modulo 6 Counter

A modulo 6 counter is any counter with six unique states that repeat in
sequence. You can build a simple modulo 6 counter using a three-element
shift register with the last element output inverted and feedback into the first
element input. (Such a counter is often called a switched tail ring counter.)
Open a new LabVIEW VI. Place three LED indicators on the front panel.
These will show the output state of the shift register elements called Q1, Q2,
and Q3. On the block diagram, use a shift register with three elements, each
wired to one LED indicator. You can use a Wait function to slow down the
action for demonstration. Note that the While Loop control is left unwired.
Each time this VI is called, the next value is returned. On the front panel,
select the three outputs as connections in the icon editor and save this
program as a subVI called Rotate.vi.

Memory: The D-Latch

In the first three labs in this series, all your work has been with
combinational circuits in which the input states completely determine the
output states. In the circuits thus far, there is no dependence on past history
or how you arrived at the current state. This means that “remembering”
cannot be built into the circuits. Most digital operations are sequential, in
that event B must occur after event A. Furthermore, in a digital computer,
events are not only sequential but also synchronous with some external
clock. Clocked logic devices are devices whose output changes only when
a clock signal is asserted. In the next few labs, you will see how the addition
of clocked logic devices brings memory into digital circuits, making it
possible to construct many interesting digital circuits.
One simple memory circuit is called the data latch, or D-latch. This is a
device which, when “told” to do so via the clock input, notes the state of its
input and holds that state at its output. The output state remains unchanged
even if the input state changes, until another update request is received.
Traditionally, the input of the D-latch is designated by D and the latched
output by Q. The update command is provided by asserting the clock input
in the form of a transition (from HI to LO) or (from LO to HI), so-called
edge-triggered devices or level triggered devices, where the output follows
the input whenever the clock is HI.
 

Marked Categories : fundamental of electronic circuits ppt pdf, fundamental of digital electronics project, labview presentation ppt, fundamentals of digital electronics ppt, electronics seminar topics ppt, digital electronics memory ppt, seninar topics for fundamental of electronics devices, study materials for digital electronics ppt, seminar ppt of electronics based on digital electronics, seminar topic on digital electronics by using simple integrated circuits, jk flip flop labview, digital memory circuit ppt, digital electronics mini projects, digital electronics ppt, presentation topics for fundaments of digital computing, clock signal in digital electronics ppt,

[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
Wink sales order processing and invoicing sopi project abstract digital Guest 1 725 03-07-2018 11:00 PM
Last Post: Guest
  a big electronics projects list for diploma or engineering students project topics 5 43,730 17-06-2018 09:45 AM
Last Post: bjansspetrov4319
  telluric currents ppt Guest 1 530 16-06-2018 03:19 PM
Last Post: Guest
  i3s technology ppt Guest 0 0 06-05-2018 09:09 PM
Last Post: Guest
  full seminar report and ppt on eyering Guest 0 0 23-04-2018 07:59 PM
Last Post: Guest
  design digital rpm indicator for electric motor with over speed alarm indicator Guest 0 0 15-04-2018 06:32 PM
Last Post: Guest
Wink zig zag pneumatic lift ppt Guest 2 394 07-04-2018 03:47 PM
Last Post: nnktaker
  ppt for gsm based ecg tele alert system Guest 0 0 04-04-2018 10:57 AM
Last Post: Guest
  multiple routing configuration for fast ip network recovery ppt Guest 0 0 03-04-2018 11:41 AM
Last Post: Guest
  i3s technology ppt Guest 0 0 02-04-2018 01:34 PM
Last Post: Guest
This Page May Contain What is Fundamentals of Digital Electronics ppt And Latest Information/News About Fundamentals of Digital Electronics ppt,If Not ...Use Search to get more info about Fundamentals of Digital Electronics ppt Or Ask Here

Options: