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Jan16-12 Greg Bernhardt
ansoft, maxwell Sticky Thread Pinned: Maxwell 3D (ANSOFT) ( 1 2 3 ... Last)
Dear all, I'm a new user and I like to exchange information about the use of this tool. From my point of view tool...
Aug13-14 03:22 PM
Fuxue Jin
194 94,229
I've occasionally been asked by some of the students I've mentored or TA'd over the years, "What's in your toolbox? ...
Jul13-14 10:34 PM
63 82,408
I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for...
Dec3-13 12:53 AM
27 58,169
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
0 31,057
Im new here and Im currently working on a small IR encoder project. I have the encoder working great but now I need to...
Dec21-12 08:49 PM
6 799
Hey I have a thing that confuses me. I have a mosfet that has to drive a transformer in pulsed regime. Now I have a...
Dec21-12 04:26 PM
4 715
Hi guys, I figured I might try making a LED to phase on and off for around 1 second, to be perfectly honest I have NO...
Dec21-12 10:41 AM
6 1,184
Hi, 1st time poster, long time student/hobbiest of math, physics, most sciences. Just getting serious about...
Dec21-12 08:13 AM
2 542
Does PUSH operation moves or copies data from register to top of stack ; I mean, what happens to the contents of the...
Dec20-12 10:12 PM
5 1,367
In particular, I am looking at a datasheet of a PNP BJT: I noticed...
Dec20-12 08:36 PM
1 478
I was wondering how to convert E=70.7sinwt..<-- (just an example) to something like 50∠0 degrees?
Dec20-12 08:20 PM
4 642
Hi PF, I have a transistor circuit with me with IFT . Please see that if this circuit can be used for AM...
Dec20-12 06:39 PM
2 546
Hi, can anyone help me on how to find Thevenin equivalent resistances for a Wheatstone bridge configuration? Ive...
Dec20-12 02:41 PM
1 1,544
We have a PC with digital-to-analog converter. With help of this converter we generate “pure” sine: y(t)=A*sin(2π*f*t+...
Dec20-12 10:50 AM
jim hardy
11 870
I helped my colleagues simulate inductance of vr crank sensor in Maxwell but my simulation result is quite different...
Dec20-12 10:09 AM
jim hardy
5 791
Hello so I'm struggling to understand why is multisim telling me different outcomes in the exact same circuit with...
Dec20-12 09:59 AM
19 1,437
in fourier transforms of normal baseband sigal , spectral components are replicated on both +ve and -ve sides of...
Dec20-12 07:54 AM
2 1,365
Hi: when using op amp as differential amplifier, can it used for input signal isolated from power supply of that...
Dec20-12 03:16 AM
5 545
Hello, I am designing an op-amp to be used as a low-pass filter and am using a TLC271. I have attached an image of...
Dec19-12 02:48 PM
23 2,192
With a budget of less than $100, does anyone have an idea on how to make a cheap piezoelectric generator using...
Dec19-12 10:17 AM
5 1,539
Hello everyone, I am new to this forum and this is my first post. I have an old generator that I have been working on....
Dec19-12 08:50 AM
0 420
Hello and thanks for taking a look I'm an undergrad student that is trying to design and make a ion thruster for my...
Dec18-12 10:35 PM
2 965
Hi PF, I am searching for a good entropy source for random number generation. I want to know if when an SRAM...
Dec18-12 09:16 PM
5 570
I know this is a bit of a newbie question but I want to learn something about generators. I want to build a simple...
Dec18-12 06:15 PM
7 934
Dec18-12 04:08 PM
6 638
I don't understand how parity error detection is any use since if there are an even number of mistakes, the errors...
Dec18-12 11:18 AM
3 464
Hi PF, I would like to implement different random number generators using AVR microcontroller (both PRNG and...
Dec17-12 09:49 PM
12 1,186
Hello everyone ! I got a problem, I can't figure out why when I compute A+B and 2\times (\frac{A}{2}+\frac{B}{2}) the...
Dec17-12 09:38 PM
5 492
i am designing a heating element control system. i am looking for a relay(with 5V input voltage if possible or 12V)...
Dec17-12 02:15 PM
jim hardy
2 445
How does the efficiency of a Thin Film solar cell compare to the efficiency of a single crystal solar cell with...
Dec17-12 12:08 PM
0 553
I would like to find a useful function to predict the output based on the input. I'm trying to figure out how to get...
Dec17-12 10:08 AM
I like Serena
2 1,693
...plate of a different capacitor, why wont the positive end of a battery (lets say AA) pass current to the negative...
Dec16-12 11:44 PM
62 2,512
is it true that analog signals are the logarithmic version of the natural signals... and hence the name a-na -log.? ...
Dec16-12 01:29 PM
7 987
Hello, my question is that almost all text books say that a linear system will give the output to a weighted sum of...
Dec16-12 10:08 AM
6 530
Why is it that the air gap flux density is flat topped at no load. What happens to it's shape when machine is loaded?
Dec16-12 10:08 AM
jim hardy
1 843
1) y(t)=dx(t)/dt Is this system memoryless? 2) y(t) = 0 if x(t)<0 ...
Dec16-12 08:41 AM
4 595
Hello everyone, I was wondering how to calculate the added resistance experienced when a cable is coiled rather...
Dec16-12 05:34 AM
12 918
I am using Oppenheim for Signals and Systems and would like to try out sketching the signals in Octave. Can anybody...
Dec15-12 01:39 AM
0 426
Boeing CHAMP weapon Anyone have insights into the technology behind this new electromagnetic pulse weaponry?…. ...
Dec14-12 10:44 PM
8 1,119
I know that the there is some small capacitance between the windings of an axial inductor lets say, but how does one...
Dec14-12 08:03 PM
2 760
Can one take 4 - 1 amp diodes check them with diode tester and if they match hook them in parallel and get a 3.6 amp...
Dec14-12 02:15 PM
10 1,993
I am using this battery for a boat bilge pump. It's all working as expected, but what I am trying to determine is if...
Dec14-12 11:04 AM
6 2,009
Hi, I would like to use a Hall Sensor (e.g. FW Bell BH 204) or a Hall Element IC, like the AD22151 device for...
Dec14-12 06:19 AM
1 558
i want some books about oscillators RC oscillator by op-amp LC oscillator by op-amp design it this kind of OC ...
Dec14-12 01:42 AM
2 380

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