Questions tagged [electrical-engineering]
Study and applications of electricity, electronics, and electromagnetism. Use this tag when someone who has trained as an electrical engineer is likely to be able to answer your question.
1,497
questions
0
votes
0
answers
11
views
Double Junction MS Contact
How can I deal with a double MS Junction?
the problem is there are thin Si sample with two metallic contacts on side. and the N type doping at Si is ND=1015cm-3 everywhere. Schottky barrier height of ...
- 1
1
vote
0
answers
17
views
Relationship between parameters in MOSFET in CS configuration, voltage divider biased
I have this question.
I have calculated ID, since power budget is given, ID is a simple P/VDD.
Using the ID, RS can also be calculated since it's given that there is a voltage drop of 400mV across RS.
...
1
vote
1
answer
20
views
IEEE1451.4 Standard, ConRes + ConRelRes Datatypes
I was wondering if someone could shed some light on the ConRes and ConRelRes data types that are listed in the IEEE1451.4. I am interested in writing a table for a bridge sensor (template 33). So for ...
- 13
0
votes
1
answer
22
views
Can this new AC motor/generator design work?
I'm currently in the works of developing a vertically suspended flywheel, and I'm trying to figure out the best method to convert rotational energy to electrical energy and vice versa. I don't want to ...
- 105
2
votes
1
answer
56
views
Is the electrical grid a centralized, decentralized, or distributed network? Which type is most efficient?
Is the electrical grid a centralized, decentralized, or distributed network?
Each dot represents a generating station, consumer, or relay of electricity:
Which type is the most efficient (has the ...
- 407
1
vote
0
answers
74
views
How to calculate the torque disturbance of an unbalanced flywheel?
I would like to understand how an unbalance of a flywheel affects the dynamics of a simplified mechanical model.
Assuming that the mechaincal dynamics can be modeled as (neclecting inertia of the ...
- 11
0
votes
0
answers
26
views
How do I select equipment for a load management system of EV chargers?
In a student project, I need to design a EV-charging system for a domestic high-storey building. As there is not enough loading(the charging stations are connected to tenant supply of multiple floors),...
- 11
0
votes
1
answer
25
views
40A mcb. 40A per pole or 40A altogether?
If I have a 40A 3 pole Miniature Circuit Breaker ("mcb"), does this mean 40a per pole or 40A altogether?
The quality standards made me write some more so I do it.
- 13
0
votes
1
answer
41
views
How do I calculate the thrust output of a high bypass turbofan engine? (7th grade)
I am trying to create a small version of a high bypass turbofan engine but I can't seem to find any materials that show how to calculate thrust but on a 7th grade level. If anyone here can help me I ...
0
votes
0
answers
26
views
Connecting logic gates with transistors
I've been trying to create different parts of a basic 4 bit computer with transistors like a 4 bit adder, 16 bytes of memory, and registers but when I tried to make a 4 bit counter I failed to find a ...
0
votes
0
answers
27
views
Three-way energy harnessing device engineering
I have a question regarding a certain engineering of a such device capable of harnessing energy in such three way. So, what I want to happen is to implement a solar and motion energy harnessing. The ...
0
votes
0
answers
28
views
Total electrical resistance of a material across different cross sectional area and temperature
It is given that the electrical resistance of a material is:
$R = \frac{\rho l}{A}$
Where $\rho$ is the electrical resistivity of the material, $l$ is the length of the traversing current through the ...
- 11
1
vote
1
answer
24
views
Seeking Manufacturing Advice: Low-Dose Powder Dosing Device
Hi everyone,
I'm working on a project that requires a device to dispense a very small amount of powder (around 1 gram per second) in short bursts. Ideally, the device would "sneeze" the ...
- 11
0
votes
1
answer
35
views
Seeking Assistance with Solid State Relay and Arduino Nano Power Failure Solution
This is my first time, and I'm looking for guidance on my approach to a particular problem: ensuring that a Solid State Relay (SSR) closes whenever my Arduino Nano loses power. The SSR, powered by the ...
user47133
0
votes
0
answers
88
views
Error code in the automatic door system
The automatic door lock system malfunctioned due to an electrical surge. Currently, the door is closed but the screen shows the door open. We opened the door by pulling the motor handle and putting ...
