Questions tagged [linear]
The linear tag has no usage guidance.
272
questions
0
votes
2
answers
164
views
distance between linear and non-linear function of op-amp system
I have a circuit which I have taken a picture of as you can see, in which i have values of
$$R1=1k\Omega,R2=10k\Omega,R3=10k\Omega.R4=10k\Omega,R5=20k\Omega$$
and sine input signal with off-set value=...
CommunityBot
- 1
1
vote
1
answer
49
views
Changing the Limits of the Graph When Trying to Model the Shockley Equation in MatLab Shifts the Position of the Curve [closed]
I have been trying to create a piecewise linear model of a diode through curve fitting. While trying to implement the code below, I ran into a strange bug that is causing my output curve to shift to ...
- 11.2k
0
votes
3
answers
85
views
How to analyze and simplify a voltage divider with a second voltage source?
How do I simplify the circuit below?
simulate this circuit – Schematic created using CircuitLab
I know that R2 and R3 form a voltage divider, but I can't figure out the input impedance that In ...
- 27.4k
0
votes
0
answers
30
views
How to predict the efficiency of a very low speed Railgun Actuator/Lorentz Force Actuator?
Well, I read somewhere that the slower the railgun is, the higher its efficiency, so I started trying to find out what would be the efficiency of a railgun actuator to move a heavy object (3000kg) at ...
- 370
0
votes
1
answer
157
views
Switching between ac-to-ac transformer taps in regulated linear voltage power supply
I am new to electronics and working on building regulated linear bench power supply 0v to 30v, 3A as my first project.
For better performance, wanted to switch between multiple tapas of ac-to-ac ...
CommunityBot
- 1
-1
votes
1
answer
40
views
How do I relate input and output signals and find the output for other input signals in LTI system?
I am studying about signals and systems. I came across a few practice problems. For the below question, I was able to mimic the input and output waves shown in ...
- 163
7
votes
4
answers
3k
views
Why is the linearity of a sensor a desirable feature?
I mean, a sensor can have a characteristics like Y=X^2 (X = the input, Y=the output).
That is, I can easily find X if I know Y.
Why is the linearity so important?
- 1
-1
votes
1
answer
198
views
Controller/Observer Canonical Forms
Given $$ G(s) = \frac{1}{(s+1)^2} $$ how do I come up with the following time-invariant realizations?
1) Controllable but not observable
2) Not controllable but observable
3) Neither controllable nor ...
CommunityBot
- 1
1
vote
1
answer
63
views
How to convert the winding of a radial electric motor to a linear tubular electric motor?
There are winding scheme/calculators and tutorials online for conventional electric motors, but I can't find any clear method of wind linear tubular electric motors.
For example, this is the winding ...
- 11.6k
3
votes
2
answers
585
views
Mosfet thermal problems in linear applications
Modern power FET's can be unreliable in some linear applications due to thermal instability causing die hotspots and premature failure. This is called the Spirito effect. How do Silicon Carbide ...
- 55k
1
vote
2
answers
4k
views
Source Transformations
I am learning about source transformations in my circuits class and I had a couple of questions regarding them.
Question 1: Is a source transformation a law? By this, I am asking if I am able to do ...
1
vote
1
answer
144
views
Find R, L and C in RLC series circuit given voltage over capacitor and current through inductor
I have a couple of exercises in my textbook (Fundamentals of Electric Circuits 6th edition) that look like the following:
To solve this problem, my first idea was to transform it into the laplace ...
- 3,365
0
votes
5
answers
144
views
Superpostion problem, why are resistors shortcircuited?
We are asked to compute the voltage between points \$A\$ and \$B\$ in the following circuit directly i.e. without using Thevenin's or Norton's Theorem:
The teacher's solution is divided into three ...
- 8,561
0
votes
1
answer
67
views
Equivalence in circuits
I'm studying circuit theory, with only linear elements and no capacitors or inductors or mutual inductances, so no differential equations. All the sources (current and voltages) are constant.
To be ...
- 16.9k
0
votes
5
answers
292
views
Resistor parallel to diode
How can a circuit where a diode is put in parallel to a resistor be described mathematically? Yes a solution would be to linearize the diode function in a specific point but in my case I need a ...
- 17.5k