What is Digital electronics: Definition and 22 Discussions
Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. This is in contrast to analog electronics and analog signals.
Digital electronic circuits are usually made from large assemblies of logic gates, often packaged in integrated circuits. Complex devices may have simple electronic representations of Boolean logic functions.
Hi,
Both NAND and NOR are considered to be universal gates. For example, NAND gates can be used in combination to perform the AND, OR, and inverter operations. The same could be said of NOR gate.
Then, why the digital electronics section of electronics textbooks almost always start with the...
I know what Boolean algebra and logic gates are, but I am having a hard time to describe how washing machines operate on digital electronics. Here's my attempt
'Washing machine have various functions like different cycle settings for various temperatures or cycle duration, or a delayed start...
Homework Statement
Digital causal recursive filter is a part of a digital signal processing system which has sampling frequency ##fs = 1200Hz## and is given by a differece equation:
where ##r = 0.9## and ##θ## is such that it filters out the spectral components at ##f = 200Hz##
Find ##H(z)##...
Problem statement
For an ultrasonic sensor (MB7380) sending 8 data BITS, no parity and one stop bit, what is the ASCII code it will give for a certain distance like 0.15 meters (0.5')?
maxbotix.com/documents/HRXL-MaxSonar-WR_Datasheet.pdf#page=2
Attempt at a solution
I do not know how to...
Homework Statement
Calculate the output function and draw a graph of output voltage in the function of the input voltage of the following digital circuit:
Homework Equations
3. The Attempt at a Solution [/B]
By analysis of what happens when inputs A and B are on the logical "1" i have...
hi there,
can someone please explain what is baseline wandering and how the continues 1's and 0's cause baseline wandering in digital transmission?
Regards
If we use 2 lasers with selectable light intensities as input, with each level of intensity corresponding to decimal number.
Like
level 0 intensity - decimal 0 (MIN)
level 1 intensity - decimal 1
level 2 intensity - decimal 2
...
level 9 intensity - decimal 9 (MAX)
and directly shine both of...
I'm having difficulty grasping digital circuits. I'm not even sure how to think of it..
For eg. In analog electronics when it comes to transistors I can clearly and perfectly visualize how current amplification or power amplification occurs.
To further elaborate my problem,, I recently learned...
A bulb in a staircase has two switches , one at the ground floor and the other one at the first floor. The bulb can be turn ON and also OFF by any of the two switches irrespective of the state of the other switches, then what is the logic of switching of the bulbs
I need help in creating a weighted timing controller that uses 4-bit DIP switch (Weight), 1-bit DIP switch (Fast/Slow operation) and etc. The question is shown below.
Creating a Weighted Timing Controller:
A simple microwave oven has two cooking modes: a "Slow cooking" mode that operates on...
I've recently started a digital electronics course with a lab component (so far not at all related to the lectures). Unfortunately, there are no prerequisites for the course and I guess they somehow expect us to know a whole lot about circuits, but I'm completely confused.
I"ll just ask two...
Hey guys,
I have designed and built digital circuits with relatively low knowledge on circuit analysis (resistor nets, Wheatstone bridges, etc.) or analog electronics. I do know how to utilize Kirchhoff's circuit laws and Ohm's law. Is it necessary to understand analog systems and circuit...
Hi,
I am a student at the University of Waterloo and am entering my 3rd year of my BSc.
I have an elective this semester and I thought I would take an electronics course. I feel like it would be useful for a bunch of things.
In terms of my future career, and what skills would be...
I'm trying to figure out how to build a breadboard instrument using either push buttons or logic switches as they keys that will play each note. The issue that i am having is that I don't think finding all of the perfect resistor and capacitor combinations for each note is a good idea. So, i...
Homework Statement
(a) How many states does this system have?
(b) How many rows will there be in a state transition table?
(c) Provide the state transition table.
(d) Draw a state diagram of the system.
(e) Describe what the circuit does in words.
Homework Equations
The Attempt at a...
I'm not really new to Digital Electronics, but this is confusing the crap out of me. My school's started a DE class and at the moment we're getting all our equipment worked out and stuff, but for some reason NONE of our IC's work. We're using a 9-volt batter with a 7805 regulator for 5 volts...
Greetings all,
I thought I'd post my idea and plan for my digital electronics project here to see if I can get any tips or meet people who may have some expertise on this subject...
The basic idea is a 'lock' that is opened by the correct series of input notes.
Using a PIC, what I'm...
This is one of the problems I have for homework:
Consider a BCD-to-seven-segment decoder and suppose that the BCD data are represented by the logic variables B8, B4, B2, and B1. For example, the decimal number 7 is represented in BCD by the word 0111 in which the leftmost bit is B8=0, the...
Digital Electronics Boolean Reduction! Help Please
Ok i need to figure out how to reduce this I've been working on it for 2 days straight and can't figure it out...please help...its due tommorow :uhh: :cry:
(ab)(\overline c + \overline d)+(a+b)(\overline c \overline d)