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Jan16-12 Greg Bernhardt
Hello, I haven't learned anything about micro controllers yet but I wanted to get a head start since I hear that...
Jul21-14 08:30 AM
Windadct
21 7,090
Even as a kid, I saw beauty in old devices. That made me want to understand how they worked. I had lots of old...
Jul21-14 12:14 AM
dlgoff
21 5,957
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 79,304
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...
Jul5-14 05:32 AM
hussain_aamir
193 89,661
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 56,567
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
berkeman
0 30,321
Hello everyone. I'm studying wireless communications at school, and I have a question... If frequency is the amount in...
Jul12-13 03:08 AM
davenn
5 500
I have seen power rails bypassed with parallel capacitors which are at least an order of magnitude apart in...
Jul11-13 03:34 PM
the_emi_guy
6 658
I need help for chosing a topic for project So i need many ideas of project By the way it should be related to...
Jul11-13 02:55 PM
u.a.e.boy
2 498
Hello everyone! Working on my sonoluminescence project in the University of Washington, I encountered some...
Jul11-13 01:05 PM
Carl Pugh
2 671
i stuck a conductor inside ground outlet. I touch it so that i am grounded (i don't trust the carpet floor to properly...
Jul11-13 10:52 AM
berkeman
7 584
Hi, so. I don't know a lot of electronics but this is effectively what I'm trying to create: A photo diode...
Jul11-13 04:44 AM
lostminty
6 878
Sorry if this seems like a simple question, but I am new to RF systems. Is there a difference between an RF...
Jul10-13 11:06 PM
davenn
12 529
Can someone help me ? i cant understand why zener diode dont have curent leakage?
Jul10-13 12:49 PM
Averagesupernova
4 499
I just recently built a low-pass butterworth filter with a cutoff of 50Hz. When I looked to purchase the parts, I...
Jul10-13 12:47 PM
Baluncore
8 744
Apologies for what may be a basic question, I am unfamiliar with RF systems but much more familiar with optics. I...
Jul10-13 09:49 AM
Mordred
11 975
So I've used a chip like this before with a center tabbed transformer useing the tab as the ground for the speaker and...
Jul9-13 07:23 PM
Tesladude
14 685
http://www.digikey.com/product-search/en?WT.z_header=search_go&lang=en&site=us&keywords=MOSFET+N-CH+250V+10A+TO-220FM&x...
Jul9-13 02:04 PM
schip666!
10 964
Hi there guys and girls I am new to this forum , so please have mercy. I am searching for equations to calculate...
Jul9-13 07:37 AM
TommiePrinsloo
4 2,760
Hello I am new with Maxwell. I made a motor drawing in solidworks and imported it in maxwell. I found some...
Jul9-13 04:14 AM
gerbi
74 14,449
I am not sure if I am allowed to post these kinds of questions here (cause I see mostly hypothetical ones, but then...
Jul8-13 03:17 PM
Mordred
13 879
Any ideas on how I could put together a smaller prototype of a smart grid system? Just brainstorming here but here are...
Jul8-13 02:26 PM
eq1
11 627
i want to manufacture a trike which is human powered as well as motor operated ...... for this i am using a 400...
Jul8-13 12:03 PM
Baluncore
1 501
Hello all, I'm currently designing all the structure, equipment and grounding for a 230-115kV terminal substation,...
Jul8-13 10:19 AM
sophiecentaur
3 928
I am trying to do some high frequency dielectric strength testing. Right now, we are using a 500kHz generator capable...
Jul8-13 07:57 AM
jim hardy
8 792
Hi all, So I created this account specifically to get some clarification on capacitors. I've been reading alot,...
Jul7-13 10:56 PM
Baluncore
12 1,671
Hi all, I am trying to build a circuit for driving multiple LEDs under test at a given current, and the LEDs are to...
Jul7-13 10:27 PM
Baluncore
2 731
Hi everyone, at my university (Computer engineering) we are studying the small signal model, but i didn't understand...
Jul7-13 05:30 PM
NascentOxygen
5 592
1. I have a car that has some electrical/electronic weirdness; the basic issue is apparently parasitic draw of about...
Jul7-13 01:48 PM
jim hardy
2 489
I want to collect some information to see if I'm paying extra high or low money for my kit. Please tell us where...
Jul7-13 03:50 AM
Moose_Ryder
0 328
Hello, I am searching for off the shelf Josephson Junctions for experimental purposes. All I have found is a...
Jul6-13 12:28 PM
f95toli
3 426
Hi All, I am looking for a sensing circuit, which can sense voltage signal between AC (85-265Vac) and DC (20-28VDC)....
Jul5-13 05:23 PM
Integral
17 1,204
Sorry for my English. I write with the help of a translator from google. Please help determine what standards of a...
Jul5-13 04:37 PM
Mordred
1 687
I am working on a hifi audio project and was looking for a very low distortion preamp. I found the lm833n which has...
Jul5-13 11:21 AM
berkeman
1 481
I am trying to build a keyboard sewn into a shirt and I wonder if I need to worry about EMC/FCC issues with the...
Jul4-13 03:20 PM
gnurf
1 478
I have a test procedure I am trying to follow and it calls for "two strands of twisted magnet wire." I know it is...
Jul3-13 05:48 PM
sophiecentaur
4 608
Are there limits to exposure to microwave frequency power within a certain range, for example with workers on a...
Jul2-13 07:59 PM
Bobbywhy
3 538
Hi I would like some advice on what you think I should use as a passive switch for my NPN or MOSFET transistor. Im...
Jul2-13 02:41 PM
Baluncore
4 756
Hey all, So I took apart an old computer monitor to try and harvest some of the hardware inside so I dont have to...
Jul2-13 08:41 AM
phyzguy
1 400
Hi! My transmitter send a signal with BWsignal=17KHz.. The receiver has an antenna with BWantenna=30MHz... I...
Jul1-13 06:15 PM
Fovakis
25 2,656
So I get the general idea of electricity being the flow of charge (or lack of electrons) but when it's alternating I...
Jul1-13 08:14 AM
Windadct
12 939
My daughter's TV won't turn on. Seems like the power panel. I'm not much of an electronics person but after looking...
Jul1-13 07:50 AM
Windadct
12 1,814
so i was looking up solar inverters (for solar panel setup) and i saw this picture and i thought it looked kinda the...
Jul1-13 07:45 AM
Windadct
5 1,067
Hi PF, I used the circuit shown in datasheet of AD633 to generate AM waves. But the output I got was not...
Jul1-13 07:22 AM
ASHIQUEBABU
9 1,151
So I've been assigned a project to replace some drives on a machine and seeing how it is a Sunday, I don't have anyone...
Jun30-13 06:48 PM
skeptic2
1 378
I drew an image of something I'm thinking of, but forgot what it was called: http://i.imgur.com/rJMLLb8.png
Jun30-13 10:08 AM
sophiecentaur
6 597

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