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Jan16-12 Greg Bernhardt
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
0 30,496
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
193 91,015
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 56,949
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 80,121
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
21 7,442
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
21 6,295
Hi guys, I am building an electromagnet to use mainly for its reaching properties. I want to have a large air gap. I...
Aug21-13 01:38 PM
3 984
I want to erase the data in a USB, without actually messing up the circuitry of the device, using magnets. What would...
Aug21-13 10:01 PM
6 1,112
I've lately been going through the Nand2Tetris course since I never had the chance to take anything like it in...
Aug22-13 04:11 PM
2 666
I am reading a text about how MRI works and I came across a thing that I am totally confused. The book mentions...
Aug21-13 01:39 PM
2 767
Hey guys, I have been thinking of creating a flashlight that is powered by piezoelectric (pressure) energy. I have...
Aug21-13 10:52 PM
6 678
I am attempting to come up with a systematic way to design Multiple Feedback bandpass filters with certain...
Aug21-13 06:08 AM
3 562
For example, if I negative charge a glass ball and put it into a rubber (or any insulator) case to shield it from...
Aug24-13 12:56 PM
14 830
There is a lot of info on how to save a wet phone and mine is now sitting in a pile of rice. Anyway, I'd like to know...
Aug23-13 10:34 AM
10 777
Hello all. I have been working on a side project, a Persistence of vision display. I have had and still have a bunch...
Aug25-13 01:56 AM
15 985
In dc motors, speed can be increased by weakening or decreasing the field flux. The mathematical explanation is ---...
Aug21-13 11:08 AM
2 629
I am actually quite confused on how a generator is supposed to be modeled... To add more power to a bus, we put...
Aug21-13 04:28 PM
7 836
Ok, this may be a very stupid question but I just can't find a right explanation. I was reading about how a...
Aug21-13 10:58 PM
3 557
Hello guys I'm looking for a motor for my arrow saw project. I would like to use it to cut carbon arrows. Found one...
Aug23-13 08:12 AM
6 1,243
Hi guys i built an ECG system(preamplifier and filters), but i faced a problem in the filters: the standard of...
Aug27-13 01:49 PM
17 1,948
Can someone elaborate on E.E research topics and current-active research programs? I have read about photonics,...
Aug24-13 02:26 PM
3 782
Ok, I'm no electrical engineer. but I am an automation engineer with a cheme background who, by the nature of my job...
Aug24-13 05:07 PM
7 852
I was wondering if anyone could help me with this. I have a 200mm LED fan that currently has blue LEDs in it. I...
Aug25-13 08:53 PM
1 542
So I need to use this LM117t 3.3v voltage regulator and I asumed the pins were the same as most regulators where you...
Aug24-13 11:05 PM
7 672
Hello All, I have a question regarding what voltage and current I need to supply for a load. I got a laser that's...
Aug28-13 08:14 PM
21 1,580
Hi, I've gotten a little confused and would like some guidance and confirmation, I've designed an H-Bridge inverter...
Aug24-13 04:41 PM
2 784
Is there any possibility to converting sound energy to electrical energy by using piezo electric material.
Aug24-13 05:40 PM
7 752
Hi, The quarter wave transformer, as I understand, is supposed to allow matching an input impedance to an output...
Aug28-13 08:57 AM
6 1,018
Phone got wet. The screen is flickering and dim but now it started to show just green with some lines across. Cam...
Aug24-13 04:50 PM
1 523
My servo, Not sure if this...
Aug25-13 01:30 PM
2 539
I've recently began looking into the SERCOS interface and have a few questions. I would guess there are a few people...
Aug25-13 02:19 PM
0 422
Hello there people. Hopefully someone will have a bit of insight into how a possible solution to my problem could...
Aug27-13 01:35 PM
2 559
Hi Why do we always bias a mosfet in Saturation mode? Is it becaus gm is more in saturation or is it because gm is...
Aug29-13 03:28 PM
9 1,625
Given: a ~3W monocrystalline solar panel, originally from a panel+battery+light pack from early 90s, spent a decade in...
Aug28-13 01:11 PM
1 615
Hi, My understanding of shaping time on amplifiers is that its the amount of time the capacitor has to collect...
Aug29-13 08:07 AM
2 606
Hello everyone, I am currently a sophomore in computer engineering, so I don't quite know enough to figure this out...
Aug29-13 08:46 PM
11 778
Hello, I want to build transmitters and receivers and I wonder if there is a tool kit which contains components...
Aug29-13 05:46 PM
1 484
Hello everyone, I recently posted about making a color organ, in which I was going to use a circuit to process...
Aug30-13 08:59 PM
3 670
Following are the text from an Electrical Engineering Textbook. "it is seen that contrary to the common but...
Sep1-13 03:40 PM
jim hardy
6 688
I'm wondering what the difference is between a VFD and servo drive are. I'm pretty familiar with VFDs but not so much...
Sep2-13 09:54 AM
3 986
Can somebody tell me exactly what is 'S' in frequency domain? I know that s=σ+jw where σ is neper frequency and...
Sep1-13 07:14 PM
2 531
Hi I think this may be a dumb question but what the heck... So i have a very small remote camera with audio, the...
Sep2-13 06:19 AM
1 568
Don't know which sub-forum this topic belongs to so I'm sticking it in here. I'm currently at a temp job testing...
Sep2-13 11:19 AM
5 590
Hi I just want to get some idea how to use an OTA as an integrator (for dual slope ADC). Can some one help me out or...
Sep2-13 11:58 PM
1 443
Hello everyone, i am a beginner in electrical engineering , and i am studying introduction to logic circuits.And I'd...
Sep3-13 10:10 AM
4 440
Hi guys, I'm wondering whether I'd be able to generate around 3V - 5V with a magnetic coil using a high turn ratio...
Sep3-13 05:26 AM
0 406

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