Register to Post Thread

Electrical Engineering

- Uses of electricity and the equipment for power generation. Circuits, Fiber, Signals & Systems, Semiconductor Devices...
RSS Feed Icon
Meta Thread / Thread Starter Last Post Replies Views
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...
T 11:02 AM
blueiced
195 94,406
I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for...
Y 02:05 PM
Jamesangelo
28 58,269
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 82,540
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
berkeman
0 31,096
Hello, I am working on building a wireless power system, I have looked into it a bit and the best if not only way...
Jun14-09 03:42 AM
vk6kro
1 1,211
Does anyone have a very low noise 60 Hz notch filter circuit that will not attenuate over 100 or a low noise...
Jun13-09 12:09 AM
berkeman
2 1,154
ok so if we have an amplifier with direct negative feedback we have a voltage follower if we put a resistor between...
Jun12-09 11:51 PM
chopficaro
5 6,502
:smile:Can you pls tell me which is the best software for circuit simultion and analysis,etc...:smile:
Jun12-09 09:33 AM
Freddy_Turnip
6 1,367
I have a 3 phase 3 pole inductive motor with a VFD that is tripping the breker even before it ramps up. The breaker is...
Jun11-09 04:21 PM
Starwatcher16
0 1,514
I have been testing this equation with various different capacitors and capacitor bank values for V, R and C. I have...
Jun11-09 03:54 PM
axi0m
8 3,120
What is the requirement to turn on a transistor. I always thought Base-Emitter junction should be forward biased. ...
Jun10-09 09:59 PM
likephysics
19 2,042
Hey all, my first post to this forum and I'm already asking for things. Well, I have an advertising business I'm...
Jun10-09 06:14 PM
MATLABdude
3 625
I am connecting a Not and And gate to an activation switch (S1 or S2) that trigger a 555 to turn on a motor using a...
Jun9-09 07:02 PM
vk6kro
6 4,721
Hey guys, sorry if this is the wrong part of the site. I'm looking for advice on rigging up a custom electrical...
Jun9-09 03:49 PM
berkeman
5 5,980
I am doing a power distribution project, and i have come across power distribution panels, some of which are High...
Jun9-09 10:58 AM
i.mehrzad
14 42,069
Hi, i have a BSc. Engineering degree in metallurgy. At the moment i'm working in the power sector. So i'd like to do...
Jun9-09 04:34 AM
MCA_BD
2 1,065
Hello, as stated I'm working on a railgun. At this point, I'm in the design phase. I'm currently trying optimize the...
Jun8-09 09:53 PM
vk6kro
5 2,301
Hello everyone. I am working on a present for a girl (hehe) which will play a wav sound from an SD card into...
Jun8-09 09:17 PM
ShadowPho1
28 8,576
Hi guys, I'm having a problem simulating the following circuit: http://img194.imageshack.us/img194/986/labtcfe.jpg ...
Jun8-09 06:05 PM
Olympus
2 1,070
i need help please, now i try to design boost converter that robust to the variation of the input votlage. i'm using...
Jun8-09 05:55 PM
berkeman
7 7,431
Can a PSU be connected to a DC source ? Asking because.... 200W PSU schematic ....i see the AC input, followed by...
Jun8-09 12:47 PM
berkeman
8 3,338
Hello everyone, I hope I came to the right place for this type of question. Please assume that I am completely...
Jun8-09 10:37 AM
TheRyad
13 1,921
I am currently using a pulse generator with a reasonably fast rise-time (something like 1 ns) for some experiments. It...
Jun8-09 03:09 AM
vk6kro
5 1,025
If you have ever seen the benchmark of an audio video receiver, you will see how the power drops off as more channels...
Jun8-09 02:28 AM
vk6kro
5 1,413
I am trying to figure out a better way to power 150 leds that need 3.4v and 20mA with a 12v,1A power supply. Right now...
Jun7-09 10:25 PM
vk6kro
1 1,127
Hi all, Through my tears, I'm trying to compare two acoustic emission sensors. The first sensor has a specification...
Jun7-09 09:00 PM
vk6kro
1 823
hi all im new in this forum and i have a quick question: i need to know which motion detectors can i use to...
Jun7-09 10:25 AM
WarpedWatch
6 1,519
Hello guys, I am trying to find a technical diagram for a GCC XL20 printer. I am trying to get the 600 resolution to...
Jun7-09 10:18 AM
ricardo_s
2 730
hi ,to all forums member from mahek.please help me out for understanding the basic concept of capicitor and hw it,s...
Jun7-09 09:44 AM
vk6kro
2 688
when u go up in volts then your amps will go down. How can I then increase amps?. Is it just by increasing the...
Jun7-09 07:48 AM
agabrielauto
2 1,684
Hello ca some one help me to find datasheets for the following IC's. I have checked in google but i couldn't find...
Jun7-09 05:28 AM
Tecmec
3 3,838
Dumb question. Can't seem to understand how pull up resistor works when interfacing TTL to CMOS. A TTL output...
Jun6-09 08:15 PM
dlgoff
9 5,390
Hi, i'm doing a science project involving the energy required to run a heat pump for the average size automobile...
Jun6-09 04:34 PM
russ_watters
9 3,285
Hey guys, i'm in need of some help. First... I know that the formula for a generator is V = N(turns) * A(m2) *...
Jun6-09 11:02 AM
vk6kro
13 1,842
I have a Hall sensor that outputs about 2.45 volts with no magnetic field applied and then the voltage goes higher or...
Jun5-09 08:28 PM
Bob S
11 2,638
Looking at the equations for the gain of a common cathode tube amplifier with the cathode resistor unbypassed (though...
Jun5-09 03:18 PM
cabraham
1 6,079
Hi all, I am working on finding a programmable regulator circuit that can produce 0-12 volts for a power amplifier. It...
Jun5-09 11:17 AM
berkeman
6 1,835
Is it true that when a lower voltage is applied across an inductor it burns up the coil? If so can someone please...
Jun5-09 03:08 AM
vk6kro
1 976
Hi guys, I need to find some textbooks which describe basic electronics. More precisely, I would like to learn ...
Jun4-09 09:02 PM
xianyang
9 1,473
For my Final Project for my AP Physics class is a rail gun. But I am having trouble getting it to fire anything or...
Jun4-09 07:01 PM
vk6kro
2 3,130
I have a single lighting switch at home which controls two sets of light separately, but I have no idea how it works....
Jun4-09 01:31 AM
Born2bwire
15 5,102
Hi all, I have a windmill gearbox, connected to a generator. At the lowest speed, the generator outputs ~ 100 mV....
Jun4-09 12:24 AM
pmk0024
11 757
Hey All, I am working on developing a current source which utilizes photocouplers (PC817s) on the connection between...
Jun3-09 07:27 PM
vk6kro
7 1,489
Another transformer question: if I have an oil-filled transformer coil and I calculate the turns ratio with voltage in...
Jun3-09 06:05 PM
berkeman
6 4,819

Register to Post Thread
Bookmark and Share

Display Options for Electrical Engineering Mentors
Showing threads 10961 to 11000 of 15470 Mentors : 2
 
Forum Tools Search this Forum
Search this Forum :
 
Advanced Search