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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...
Aug25-14 03:20 PM
Fuxue Jin
196 95,183
I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for...
Aug22-14 02:05 PM
Jamesangelo
28 58,562
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
NATURE.M
63 83,029
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
berkeman
0 31,239
I want to input the following function so I can find the Fourier Transform of it: tri(\frac{t}{2\pi })Cos(2\pi...
Oct13-11 10:36 PM
frenzal_dude
2 1,187
How can you read the phase spectra from a Fourier Transform? if g(t) = Sin(2\pi f_{c}t) then for the single...
Oct13-11 08:51 PM
frenzal_dude
1 3,485
Hey guys, I'm working on a project involving a DC motor. I'm in school for mechanical engineering.. Electrical...
Oct13-11 03:39 PM
jim hardy
22 4,934
Hi, I'm looking to create a simple circuit to convert current on a nominal 120VAC line into a voltage. I have a few...
Oct13-11 03:05 PM
jim hardy
6 6,157
Hi; first of all I'd like to say I love these forums and they always help me with anything I don't understand. But I...
Oct13-11 07:44 AM
khawarspirit
1 1,042
Hello. As the title says, I need some help in getting a transistor to amplify a current. I have a TIP120, whose DC...
Oct13-11 01:02 AM
pantaz
5 2,136
Hi, I am wondering if it is possible to "piggyback" off existing meters/indicators in a diesel generator? The...
Oct12-11 11:13 PM
jim hardy
4 1,457
Hey all So i just need some clarification, though I hope I am posting in right section (this is not a HW Q) I...
Oct12-11 11:07 PM
xenocid3r
2 1,991
I am trying to get fimilar with electrical components. I did some BG research on relays. Does this make sense. 1.My...
Oct12-11 08:32 PM
davenn
4 1,298
Hi All, I am confused about what is meant in the mathematical definition for the energy of a signal. Why is it the...
Oct12-11 08:32 PM
AlephZero
3 1,449
Triangular and sawtooth waveforms. I solved for the coeffiecients for the square wave, and was wondering if you do...
Oct12-11 08:06 PM
Bob S
1 965
I am trying to calculate the voltage induced onto a shielded cable by a 200 V/m external electric field. I found an...
Oct12-11 07:39 PM
yungman
22 2,541
I'm starting my second year at school, and knowing that I will have to declare my major soon I'm torn between the...
Oct12-11 07:03 PM
jim hardy
4 3,199
Well here goes for my first post... Currently I am trying to build an active integrator. The circuit is similar...
Oct12-11 02:38 PM
danham1979
9 2,277
I understand that pass and band filters are not really described by their gain but by their slope. Apparently for a...
Oct12-11 08:17 AM
psparky
26 9,688
hye... i new user (forumer)... help me.... 1) -what is voltage stabilizer? -application -effect -...
Oct12-11 04:03 AM
Phrak
11 3,147
I'm so confused on how Shannon's expansion theorm works. I'm wondering if someone could dummy it down for me. For...
Oct11-11 08:25 PM
Sinister
1 1,727
Hi all, I am facing the problem with shore power supply for the vessel. At our ship yard, sometimes we need to...
Oct11-11 10:19 AM
jim hardy
1 1,355
Harmonics is one of those things that few understand....especially me. Does anyone have a real understanding on the...
Oct11-11 10:03 AM
jim hardy
22 2,104
Hi all, I have a problem with a VSD at work thats been confusing. I am a field service engineer for an oil service...
Oct11-11 09:55 AM
jim hardy
2 1,217
Hi, What is true frequency of UE in LTE? Thanks
Oct11-11 08:26 AM
fireboy420
0 488
hello, ( Folow the attachment. ) I want to blank periods of an AC signal. For that i selected a isolation...
Oct11-11 04:57 AM
bala.eighty8
0 689
I read a few pages of what BobS posted and I read through the RCA Receiving Tube Manual. But I cannot find any info on...
Oct11-11 01:18 AM
yungman
2 647
I want to find a book that explain how the different grids affect the operating characteristic of the power pentodes....
Oct10-11 09:11 PM
yungman
3 1,053
Hi all. Good day to you all. i wanna make one thing clear. In converter circuits, how to trace the polarity of...
Oct10-11 07:04 PM
jim hardy
12 2,161
Hi all, Mechanical engineer needing some electrical help. So electrically piezo actuators are modeled as...
Oct10-11 06:38 PM
emosier
0 1,256
Hi. I've built a (3 in fact) negative HV power supply continuouly adjustable from 0 to - 8 kV. It uses a CCFL inverter...
Oct10-11 04:09 PM
yungman
25 2,817
See i have a problem regarding clamping circuits: 1.what do we mean when we say that "capacitor allows ac to pass...
Oct10-11 11:06 AM
berkeman
1 768
the general form of state space output is y=cx+du which means that output is linear combination of state variables and...
Oct10-11 10:50 AM
Pablo Verdugo
3 1,088
Hi, I am a student taking Adv Diploma in Electronics Engineering in Malaysia... Im facing a problem in my project......
Oct10-11 09:51 AM
yoyoyeoh90
0 827
I just want to know if there are ever any circuits where I am required to use voltage division, or current division,...
Oct9-11 08:38 PM
yungman
1 777
i am in no way a engineer so i need help i just bought (MICRO SWITCH, PIN PLUNGER, SPDT 16A 250V; Microswitch...
Oct9-11 07:53 PM
MATLABdude
1 1,400
Hey everyone! I'm looking for general ideas on how to take advantages of high EM-fields created in for example ,...
Oct9-11 05:37 PM
sophiecentaur
3 805
Hi, I do not know anything about relays. I been trying for days to hook up a relay to turn on a light using an Axis...
Oct9-11 04:39 PM
TurtleMeister
16 4,631
What type of circuit should one set up in order to induce chaotic outputs? My current research is pointing me towards...
Oct9-11 03:48 PM
berkeman
6 3,129
Does a spark gap increase the current in a circuit? My thinking is that the surrounding air is ionized and any...
Oct9-11 03:32 PM
berkeman
6 1,196
First of all hello to all, I am an electronics engineering student on a placement year, I am doing some design work...
Oct9-11 01:05 PM
Sparkypedia
0 625
I want to detect all zero-crossings in a sine wave through matlab. Kindly tell me about a simple code which detects...
Oct9-11 12:31 PM
Bob S
6 3,022
Hi gents. In a rig several times an OpAmp LM-324 burns and melts (and support too ! ). The circuit works perfectly for...
Oct9-11 09:55 AM
Ravaner
5 1,751
Why is it important that the pulse width of the trigger input be less than the expected pulse width of the monostable?
Oct8-11 05:41 PM
Bob S
1 1,491

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