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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
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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 82,477
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
doubtbook
27 58,214
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
berkeman
0 31,078
Hey all, I'm trying to build a circuit using flip flops that passes data in series using multisim. My problem is...
May6-11 06:38 AM
nahidxy
6 26,942
I have been using a 25VA transformer without any problems, but it happened to trip the elcb/mccb once I plug it in. ...
May6-11 04:04 AM
Pagedown
13 3,069
In a PN junction under reverse bias, a small bit of current exists due to the movement of minority carriers. Under...
May5-11 05:51 PM
dlgoff
1 893
I am thinking of using the output frequency of a 555 relaxation oscillator for measurement purposes. The frequency...
May5-11 04:00 PM
0xDEADBEEF
0 641
I need help in understanding a rectifier to charge a lead acid battery on my bike. I checked it with an ohm meter to...
May5-11 11:20 AM
yshtar
28 3,006
My notes say reactance is the magnitude of impedance, so I assume it means this: |Z| = \sqrt{X^2 + Y^2} but...
May5-11 10:00 AM
JesseC
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Hi guys, this is my first post in this forum so I hope I get some help. My question is: can an output voltage of...
May4-11 07:35 PM
KingNothing
9 6,582
How do I reduce this resistor network. The input current and the return current should be equal. But in this case,...
May4-11 01:41 PM
likephysics
4 2,467
Ok so I've noticed in my time playing with electronics, which isn't that long, that sometime when something breaks and...
May4-11 12:14 PM
berkeman
4 877
what is meaning of ac winding and dc winding?how it differs from each other? advanced thanks.
May4-11 11:35 AM
Bob S
2 1,238
I've got a 555 timer wired up like in this picture http://oi52.tinypic.com/10msdad.jpg and my output is going to 2/3...
May4-11 10:46 AM
vk6kro
6 886
why do we require delta and star load connection ? thanks.
May4-11 10:00 AM
Skaperen
4 1,100
We use induction furnaces to melt aluminium. I want to be able to read the temperature of the water in the pipe...
May4-11 08:40 AM
roro36
3 940
I want to rotate a plate of mass of 20 kg at the maximum rpm of 18000 using DC motor. so how much power should be of...
May4-11 04:41 AM
astro2cosmos
0 1,875
Hey Guys, So I was scrapping parts from an ancient present I found up in the attic called the "Singing Machine". ...
May3-11 08:00 PM
Jiggy-Ninja
11 5,434
I have a question about digital to analog converters. Lets say I am given a R-2R ladder type DAC with 7 "wrungs". ...
May3-11 07:55 PM
vk6kro
5 1,628
I have a 36 Volt golf cart using 6 - 6 Volt batteries in series. If I add a circuit by connecting an automotive...
May3-11 07:54 PM
robert2734
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Hi, I am simulating vibrations in simulink and processing my results in matlab. I am trying plot the PSD for my...
May3-11 07:25 PM
19dan87
0 1,612
Hi all, Please excuse me for such a simple question, I am a predominantly a mechanical engineer. Does a series...
May3-11 02:45 PM
1988ajk
5 3,145
Im working with building a reluctance motor and ive posed a problem to myself that i cannot answer without questioning...
May3-11 11:53 AM
Bob S
5 2,059
Hello, I am wondering if it is possible to light up small LED with piezocrystal of lighter? Will it work in...
May3-11 10:19 AM
Tryp
0 581
I'm looking for information on how hot swap PSUs as used in computers (used typically for data center servers) are...
May3-11 09:45 AM
Skaperen
0 822
Why is the flatband voltage of a MOS capacitor equal to the voltage corresponding to the energy difference between the...
May3-11 09:44 AM
andy2c
6 20,753
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May3-11 09:43 AM
Apple4ever
0 1,582
please describe in amateur terms im building multiple circuits and want to house these in a toy car for recreational...
May3-11 07:30 AM
FarraJ
1 537
Is it possible to make a circuit with a sensor which makes an alarm go off when the sensor detects movement. if so can...
May3-11 06:09 AM
fss
1 986
Can anyone tell me how many turns required for designing a 220v-100v,180v and 100VA amplifier? Rating : 100VA ,...
May3-11 05:15 AM
Skaperen
1 1,883
hi everyone, here is picture of power supply:-- http://img696.imageshack.us/img696/8841/powersupplyg.jpg at top...
May2-11 07:03 PM
PainterGuy
36 4,646
I want to design a circuit for the sake of me seing if i can do it. I need the following things 2 LED Lights which are...
May2-11 06:31 PM
vk6kro
10 1,779
Hello, What i need to do is; create an RTD sensor, hook it into a MCU and use the mcu and the self heating aspect of...
May2-11 04:41 PM
Tdunlap
2 1,204
If I have a lets say a dishwasher which needs 1000 Watts to operate. Doesn't that mean that, if you have 120 V you...
May2-11 04:25 PM
Skaperen
24 2,710
I have been repairing some devices but some of them have the pad connection ripped off so I can not repair the USB...
May2-11 10:08 AM
Devyn@2nd
7 1,090
how does it work?? i am really too confused and can't understand its idea. can anyone help??:confused: :confused:
May2-11 09:06 AM
sahil.kashyap
3 27,879
Could someone please tell me what kind of equipment is seen on this video from an abondoned air force base from around...
May2-11 08:46 AM
moja26
0 662
I am trying to determine ohms and wattage of R2 on attached schematic. The resistor fried so I cant tell anything...
May2-11 07:12 AM
Misko78
10 3,235
What causes a switch's contact to spark when you use it to open a connection to a load? I can understand why the...
May2-11 03:32 AM
sophiecentaur
4 1,094
why do minority carriers exist? in a p-type material, why dont the minority carriers recombine (and get annihlated)...
May2-11 02:23 AM
Aranion
3 1,621
Hi all, I'm a math major about to take the plunge into EE in hopes to work in the semiconductor industry...
May1-11 01:36 PM
reddvoid
1 954
Hi, I need to get data from some sensors over a ethernet connection. I found that application idea on microchip...
May1-11 12:15 PM
schip666!
1 1,044
I am try to measure the voltage from a high impedance source with a regular voltmeter with an input impedance of 10...
May1-11 10:39 AM
Averagesupernova
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