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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
21 5,985
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 4,796
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 76,290
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 85,144
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 55,118
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
0 29,679
Hi i'm looking for a ferrite bead that will block 1-20 Mhz frequancies and pass all lower ones is it possible...
Apr8-11 07:21 AM
14 2,969
Hi to all is it possible to use the same transformer in the range of KHZ on the one hand and on the other the...
Apr8-11 02:13 AM
2 670
I don't wish to ask dumb questions about basic LED applications but ............... Yesterday I bought a 12 mcd, 5mm...
Apr8-11 01:26 AM
2 2,287
i have a gas turbine generator 16MW iso POWER, and an centrofigual compressor with 5MW motor driven. I hesitate to use...
Apr7-11 08:43 PM
0 1,286
Hello, Two copper cables have the same Impedance and Voltage but different Gauge. Will they act differently? ...
Apr7-11 06:06 PM
11 2,032
Hi there, does anyone have experience with amplifiers in cryostats? I would like to have one close to the sample...
Apr7-11 05:23 PM
1 903
I'm not too sure if this is the right place to ask for help like this, if not a point in the right direction would be...
Apr7-11 05:12 PM
4 965
Using TL084 and want to supply +/-5v for power. I heard there is a way to do it with 9v battery but I cant find any...
Apr7-11 03:37 PM
3 1,611
If you've got more windings on the primary (step up) then I imagine that there'll be more magnetic field lines flowing...
Apr7-11 07:48 AM
7 5,532
I was wondering why it is when you use the electricity from an electrical generator, it bogs the generator down?...
Apr7-11 02:53 AM
4 1,566
I recently came across MIT prof. Walter Lewin's fascinating demonstration of a Kelvin water dropper, which can be seen...
Apr6-11 09:40 PM
2 3,087
So i want to introduce myself, i went to Georgia Tech, and I got my BS in Biology, but ECE has always been kind of...
Apr6-11 04:48 PM
5 1,907
I know this probably sounds weird, but I have a research problem that requires "random" analog circuits. Basically...
Apr6-11 04:36 PM
2 678
In a field loss event, why does a shunt wound dc motor run away? From my understand of electric motor, the armature...
Apr6-11 01:13 PM
6 10,150
What exactly is a zero-span circuit? How does it work?
Apr6-11 10:21 AM
7 7,630
Hi All, when a power system is in peak demand how come the generators that create the power experience a speed droop...
Apr6-11 09:25 AM
7 1,475
My electric kitchen-aid mixer recently began to make a high pitched whirring sound that increases in pitch with the...
Apr6-11 09:21 AM
12 1,474
I need to control a torque motor using variable voltage. I also need to have it rotate in reverse. Basically what I...
Apr6-11 06:36 AM
2 2,260
I am looking for some information on antenna coupling. I am looking at coupling energy from one transmitters antenna...
Apr6-11 04:14 AM
16 9,722
I'm designing an interface between an ARM-CPU and a FPGA and have a pretty noisy channel between them. So I was...
Apr6-11 02:56 AM
3 919
hello forum, I am trying to read and learn about balun. Some transmission lines are said balanced while other...
Apr5-11 09:52 PM
31 7,675
After a refresher about basic principle of Induction motor, I realized that the torque developed by induction motor is...
Apr5-11 08:53 PM
2 4,738
Hello, I would like to use (small!) thermoelectric generators to have 100 mW of power available for one device I am...
Apr5-11 04:41 PM
0 731
Hello, I am seeking assistance with a design project for my engineering design class. We are tasked with developing...
Apr5-11 12:57 PM
0 1,112
I guess the title basically explains it. I'm reading over some circuits and can't figure out how to find total current...
Apr5-11 12:52 PM
3 2,949
hey i have a 5W pv panel and was wondering if i could build some sort of circuit to run my pool pump? was wondering...
Apr5-11 12:42 PM
5 1,347
This is my first post, so I'll give a bit of an intro. I am an marine engineering cadet at mass maritime academy in my...
Apr5-11 12:37 PM
4 1,886
I am reading a radar book about probability of detection and false alarm. The book present the basic idea of the two...
Apr5-11 07:53 AM
2 6,824
Hi guys, my first post on these forums. I am learning electronics and am still very new to this all. My current...
Apr5-11 02:23 AM
8 3,933
HI all, first time poster. What I'm looking to do is isolate a 9VDC load. Specifically, I've got a 9v battery...
Apr5-11 12:23 AM
7 5,426
Hi Experts, there are a few types of gsm frequencies eg. 900/1800/1900/2100 MHz. Is it true that the higher the...
Apr4-11 08:42 PM
21 2,623
Hello, I just found this forum through google. I have a question about a diy bike pedal powerered electrical ...
Apr4-11 12:07 PM
5 954
I frequent the community around the Electronics Engineering Video Blog. Apparently the host Dave Jones found a neat...
Apr4-11 10:11 AM
11 2,064
I have a Panasonic inverter, I understand it needs some sort of input to, CN701, three terminals numbered 1-2 & 3. ...
Apr4-11 03:36 AM
1 971
what is meaning of test performing on bulk material & conduction with complete insulator.
Apr4-11 03:29 AM
1 741
I am working on a 3D crane system, the system has three dc motors for y, x and z axis, and i control them with a PWM...
Apr4-11 12:02 AM
2 1,996
Hey everyone, I am trying to develop a small electromagnet to pick up (relatively) large amounts small shavings which...
Apr3-11 08:29 PM
Robin Hooper
3 1,031
Hey, my first post on here, just wanted to ask how to calculate the effect of a motor, and a switching current in the...
Apr3-11 02:27 PM
1 777
Greetings everyone, I'm trying to figure out how I can take an old Rock Band kick pedal and make it activate a...
Apr3-11 02:17 PM
3 727
I am a physicist (master, PhD) and have a job opportunity in an electrical engeneering company. Does anyone have...
Apr3-11 11:53 AM
2 1,493

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