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...
Aug25-14 03:20 PM
Fuxue Jin
196 94,880
I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for...
Aug22-14 02:05 PM
Jamesangelo
28 58,454
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 82,832
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
berkeman
0 31,185
So, I have been long struggling with getting a L298 motor driver I have to work. I figured it to be more compact than...
Aug19-13 02:05 AM
meBigGuy
11 1,215
Hello everyone, I have the following circuit I designed. Although I am open to all criticisms and suggestions, my...
Aug19-13 12:32 AM
Wetmelon
12 691
Suppose I have a channel between a source and a drain in a FET. What is 'pinch-off' and how does it affect my I-V...
Aug18-13 10:24 PM
dnyberg2
2 478
So I want to make a tda2050 amlifier with 4 of these chips, and after posting a lot of questions about different audio...
Aug18-13 09:32 PM
Tesladude
57 2,698
I'm doing some calculations on a two quadrant chopped DC motor controller, like below. ...
Aug18-13 06:25 PM
MechatronO
0 690
A practical DC motor armature is nothing but several "textbook DC motor" single armature windings bundled togheter and...
Aug18-13 05:15 PM
Crazymechanic
10 1,853
Hellooos! My Question is: How can a Microwave be run/Powered through an inverter? i.e. if I want to power a...
Aug18-13 05:01 PM
mfb
1 414
With this board: http://i.imgur.com/GRf1gXl.jpg the associated schematic is: http://i.imgur.com/NfaIvVU.jpg ...
Aug18-13 02:42 PM
sherrellbc
6 585
So a little background: I am trying to construct a superhet radio with an oscillator producing a harmonic-rich output...
Aug18-13 05:00 AM
Fischer777
12 762
Hi All, I am looking to design LPF with Inductor and Capacitor that can reject 60Hz frequency. I tried on google...
Aug18-13 02:57 AM
meBigGuy
28 2,640
Several ways to gate a conducting polymer on a chip. Backgating, electrochemical gating. What is backgating and...
Aug18-13 02:12 AM
carlgrace
3 449
Can a variable frequency drive with the ability to control motor torque, be programmed to run at a certain speed and...
Aug18-13 12:20 AM
Baluncore
2 875
I have a linear model of a phase detector (phase lock loop) represented by the block diagram below. It is designed to...
Aug17-13 08:46 AM
milesyoung
15 847
can we measure ripple factor using same? again what is difference between ripple, ripple voltage and ripple factor?
Aug16-13 09:43 PM
ritucrown
2 753
Lets say if i got RC series circuit. If i increase the voltage supply frequency then what happen to the voltage...
Aug16-13 05:22 PM
jim hardy
33 2,302
It's been a while since I had my last circuits class, so I'm just looking for some verification on my calculations. I...
Aug16-13 03:51 PM
berkeman
1 518
Can a Thermocouples cold junction can be electrically manipulated. Can a Thermocouples cold junction can be...
Aug16-13 09:18 AM
sr241
4 548
Hello, I'm trying to design a simple digital circuit for learning purpose, and maybe later a bigger project. The...
Aug16-13 01:53 AM
meBigGuy
18 977
120 v ac primary and turn ratio of 5:1 I came up with 600v ac is this wrong
Aug15-13 08:39 PM
vk6kro
4 507
Hi PF, I have a serious doubt. In spread spectrum modulation etc we multiply the message signal with PN...
Aug15-13 08:25 PM
NascentOxygen
11 2,429
Would it be possible to add a transistor in between the LED and the driver, as shown in the application photos, to PWM...
Aug15-13 01:06 AM
meBigGuy
4 571
Hi all, I have simulated (both in software and experimentally) inter-turn winding short-circuit fault in a...
Aug14-13 06:52 PM
jim hardy
1 565
Hi my name is HopelesslyFaithful (HF) (forum didn't allow all chars). I am from Notebookreview and while googling for...
Aug14-13 06:11 PM
jim hardy
12 1,196
Hello, Please I would like to know why in a circuit that contains an inductor we say that the potential drop across...
Aug14-13 11:01 AM
tonyjk
3 768
I have a 3x3x3 foot box that I want to light up in a place that does not have access to electricity. The box will...
Aug13-13 11:37 PM
meBigGuy
4 489
so calculating FC on an infinite bus is easy but how do you calculate it by hand for a finite bus? here is the...
Aug13-13 11:33 PM
meBigGuy
1 538
Hi all, I'm trying to PWM a high brightness LEDs in parallel...
Aug13-13 11:06 PM
meBigGuy
3 835
I want to make an LED display that can show 3 digits, so I have 7 segments for each digit for a total of 7x3=21 LEDs....
Aug13-13 10:57 PM
meBigGuy
12 1,224
i was messing with a friend of mine, constantly switching his bed lamp on and off; he said that's how light bulbs get...
Aug13-13 05:15 AM
sophiecentaur
3 512
Hello, I apologize if this is posted under the wrong section, but I believe this falls under the category of...
Aug12-13 11:08 PM
davenn
1 410
Hello, I have been researching operational amplifiers because I plan on using some in a circuit I wish to...
Aug12-13 03:09 PM
cabraham
8 929
So in an application like this: http://i.imgur.com/oKl0KK8.png The coil of the motor will, by Lenz's Law, induce a...
Aug12-13 11:49 AM
jim hardy
21 1,173
I am trying to make a DC electro magnet coil. The Coil is wound up to the core. And works fine. But i'm not being able...
Aug12-13 10:04 AM
modmix
4 547
Can you guys help me out with books/resources on reliability engineering basics, specifically reliability of...
Aug12-13 10:00 AM
likephysics
0 377
Hi, i'm trying to build a simple analog voice distortion circuit, without any ICs if it's possible. It can get pretty...
Aug12-13 04:38 AM
meBigGuy
5 1,013
I cannot understand how this IC works from the block diagram given in the datasheet. I understand the concept of an...
Aug11-13 01:44 PM
sherrellbc
1 458
Hi, I would like to know how a detectors bandwidth can be measured? for example, if there is any relation with the...
Aug10-13 09:45 PM
meBigGuy
26 1,889
Im going to my 3rd year as a telecommunications engineering student in the university. I was thinking of applying to...
Aug10-13 06:35 PM
Megziflips
1 525
i have a problem : A small loop antenna in free space and centered about the origin on the xy-plane is producing a...
Aug10-13 10:06 AM
SteamKing
1 631
I am trying to simulate the inrush current in a transformer when it is at no load, using the software Powerfactory. ...
Aug9-13 04:26 AM
Daniel Fuente
1 534

Register to Post Thread
Bookmark and Share

Display Options for Electrical Engineering Mentors
Showing threads 1641 to 1680 of 15495 Mentors : 2
 
Forum Tools Search this Forum
Search this Forum :
 
Advanced Search