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Questions tagged [analysis]

Questions attempting to analyze the mathematical properties of a formula, the inner workings of a protocol, or the design of a given circuit.

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3
votes
1answer
15k views

How do I decide which method to use in circuit analysis?

I'm an Electrical Engineering student, and circuit analysis can be really confusing to me. I sort of understand the concepts of solving circuits, but I don't really know when to use which method. Are ...
0
votes
2answers
2k views

How does this flasher circuit work?

I was watching the video on Forever Flasher circuit in Advent Calendar of Circuits 2011 series by vk2zay. Below is the circuit I am talking about. However, there are some things I understand and most ...
2
votes
3answers
379 views

Nodal analysis, can't understand detail

This is a picture of the problem: Can someone please explain to me, why is to \$V_1=V_2+10\angle{45°}\$ why not \$V_2=V_1+10\angle{45°}\$ or not \$V_1+V_1=10\angle{45°}\$? (It's circled in the ...
0
votes
0answers
851 views

Communication between AVR and CORUS PTZ device

12 NULL bytes are being sent to CORUS device (to power on it) with this codevision code like putchar('\0'); Sending is ok , but regarding to page 9 of the ...
1
vote
2answers
542 views

What is failure analysis of PBCA?

I do not know whether this is the appropriate place to post this question but i guess its related to electronics. Basically i'm doing some research on what is the term for "PBCA" in failure analysis? ...
1
vote
2answers
234 views

Systematic construction of the ODE system of a circuit containing opamps

I want to compute the voltages and currents in a circuit containing R,L,C, opamps and voltage sources. I perfectly understand how to do this for circuits containing only R,L,C and voltage sources, ...
3
votes
6answers
293 views

Calculating Voltage

I am trying to calculate the voltage \$Vw\$ of the following circuit: I have little experience with these kind of problems, so I tried to solve first a more simple circuit that did not include the R2-...
4
votes
3answers
628 views

Time-series Statistical Analysis with FPGA

Suppose I have two time series, such as stock valuations or radioactive diagnosis, for which I need things such as covariances (QP -problem) among other things. Covariance calculations should be easy ...
3
votes
2answers
6k views

Supermesh Analysis of circuit of two loops

I have am having trouble moving forward with the following problem. The problem says that Find the value of Vs in the circuit below such that the power supplied by the current source is 0. The final ...
6
votes
1answer
2k views

Type 2 compensation network

I'm working through the excellent text on SMPS design "Switching Power Supplies A to Z", by Sanjaya Maniktala. Right now I'm reading the section on the feedback loop and stabilization. As a first-...
11
votes
7answers
3k views

Differentiating between a square wave or sawtooth wave with a circuit…?

I want to build a simple sensor that takes a 100 kHz square or sawtooth wave with a known amplitude and outputs a high if it receives a square wave or a low for sawtooth. I'm pretty sure this ...
2
votes
1answer
661 views

How to conduct mesh analysis on a current source in series with a resistance?

How can I do a mesh analysis of the following kind of circuit? I'd normally put up Kirchoff's voltage laws for each of the two loops. If the current source wasn't in series with a resistance, I'd ...
3
votes
1answer
1k views

How to calculate equivalent resistance?

This is not homework. Imagine an infinite resistor grid which the picture shows a part of. The question is what's the resistance measured across any of the 1k\$\Omega\$ resistors. I don't want you ...
2
votes
1answer
3k views

How to get started using ngspice?

I've recently finished some work with hspice, and now I don't have access to the server. I've installed ngspice on my Fedora 15 machine, but I'm unfamiliar with how it works. In hspice, I was able to ...
27
votes
5answers
4k views

Puzzled by Nyquist frequency

Say I have a 1kHz sine, so no higher harmonics, then I need to sample it at least at 2kHz to be able to reconstruct it. But if I sample at 2kHz, but all my samples are on the zero-crossing, then my ...
2
votes
1answer
2k views

Series to Parallel inductance conversion

Reviewing some material I thought I understood, but it turns out there's some subtlety I'm not getting. The usual formula for calculating the Q of a non-ideal inductor is \$\frac{Xs}{Rs}\$, where Xs ...
6
votes
6answers
562 views

Reading a circuit

Disclaimer: I am a beginner. I am reading a knol book on electronics, and I am faced with this schematics: How do I read a circuit to understand what it does ? Do I have to imagine the electrons ...