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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 7,470
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 6,330
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 80,187
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 91,095
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 56,982
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
0 30,513
Is it possible to consider a short (20ns) impuls of only one polarity as a short segment of direct current in a simple...
Feb11-13 11:48 AM
2 431
Most Karnaugh maps care only about either SoP representations or PoS representations. I have to implement a circuit...
Feb11-13 11:23 AM
0 686
Hello, I have a doubt about the high frequency response of the MOSFET (or BJT as well) differential couple in the case...
Feb11-13 08:58 AM
1 762
Hey. Was jump starting and charging a car battery a couple of days ago for the first time. I connected the positive of...
Feb10-13 04:35 PM
jim hardy
6 536
Good Morning, I was using the Digital Multimemter (DMM) a couple days ago and was wondering what inside the DMM...
Feb10-13 03:05 PM
5 648
I've been looking at the undergrad catalog of my school and I haven't noticed any classes that teach motor design. I...
Feb10-13 12:13 PM
6 1,184
Does any one knows how to check an IC if it is working or not ?
Feb10-13 11:36 AM
8 724
Any suggestion or hints for any software that helps in Frequency Planning for Communication networks... please give...
Feb10-13 07:37 AM
5 729
Can someone please explain WHY is it when the poles of F(s) have negative real parts, the system is stable. Why is...
Feb10-13 07:25 AM
1 994
So I have to implement a 4 input 1 output circuit. I am given the Karnaugh map (obviously a 4by4) and have to build...
Feb9-13 11:35 PM
1 503
I mean i love having the screen set to perfect calibration like the iphone, but why dont we have tvs like that? It...
Feb9-13 11:33 AM
1 664
I have read a lot of articles on pulse width modulation and I am none the wiser as to how it generates different...
Feb9-13 08:20 AM
jim hardy
6 905
Hi, i 'm new here. (I 'm from Panama city, Panama). I know very, very little from electricity and those stuffes. I...
Feb9-13 08:14 AM
6 3,454
I want to build my own circuit sensor. I opened the digital scale.I built the circuit on breadboard.The sensor is...
Feb9-13 08:09 AM
1 476
The Maker Greetings, I saw a slew of discount solar panels and I want to use one to power my iPhone or possibly...
Feb9-13 06:16 AM
9 1,021
can you tell me the basics of a solar inverter circuit and how it works? i'm a starter in engineering :P
Feb9-13 04:11 AM
1 655 I need one small input to switch on a slightly larger circuit permanently, until I...
Feb8-13 08:29 PM
11 1,027
is that star load will make unbalanced , delta will not? THX
Feb8-13 03:14 PM
1 383
Hi, Looking for the SI Notation practices for Direct Current and Voltage Direct Current. We commonly use DC and...
Feb8-13 11:47 AM
3 2,881
Hello there, I am working on a current control loop for a PMSM (Permanent Magnet Synchronous Machine) in which...
Feb8-13 01:22 AM
0 511
I always wanted to know how this worked? I know AMPs is how many Electrons move past one point in a SEC. I know...
Feb7-13 08:39 PM
13 1,485
OK PF'ers - this is our dream - dashed.... A client of ours - Oh so...
Feb7-13 06:02 PM
0 366
Hi friends, Why the battery dischargers are so heavy? Thank you very much
Feb7-13 03:30 PM
4 544
I want to know how to begin legally getting into LP Radio. I want to learn how to set up a system, get a license and...
Feb7-13 02:20 PM
7 584
I have three grid tie inverters connected to my grid thru standard AC plugs. The system pushes about 1kw to the grid...
Feb7-13 02:17 PM
8 924
I am currently looking at charlieplexing that can in theory cause me to be able to control eight 7 segment displays...
Feb7-13 02:08 PM
1 418
hello friends, I am looking for a 6 Pin DPDT switch to which DC voltage will be given as input My input DC...
Feb7-13 11:52 AM
Carl Pugh
2 886
Quick question. If the manufacturer's specs ask for clearance top and bottom when mounting in the cabinet, does that...
Feb7-13 09:18 AM
2 396
looking for standards & guidelines on Neutral Wire for distribution system, especially Neutral Up or Neutral High...
Feb7-13 04:22 AM
jim hardy
3 948
I am idly curious about induction heating; specifically for heating 80L-100L of water from 20C to 100C as efficiently...
Feb6-13 11:59 PM
5 1,423
I am wondering how the waveform of AC voltage measured across a diode would look like? What about the waveform of the...
Feb6-13 09:12 PM
2 942
In single phase series circuits, should the current always be drawn along the x axis and the voltage then drawn with...
Feb6-13 07:48 PM
4 840
can you tell me all of the equations to find AC frequency? also, what is AC voltage? is it somehow linked to frequency?
Feb6-13 06:09 PM
8 727
Hi, I'm fairly new to and not very good at electronics (my A-level project was an LDR that turned on a light, LOL,...
Feb6-13 05:07 PM
23 1,481
Hi I have a basic question. When birds sit on an overhead line, they are sitting on a bare conductor which is...
Feb6-13 04:53 PM
21 1,735
I am designing a small step up transformer and I'm trying to calculate leakage inductance and winding capacitance. ...
Feb6-13 02:52 PM
1 875
Hello, I am going to college in a couple months (next semester after summer). I want to know where I can self-teach...
Feb6-13 02:47 PM
2 385
I found an image on google that I recognised to be an almost functioning NOT gate: ...
Feb6-13 11:27 AM
11 998
What things do I need to consider when selecting a proper sized power supply? Basically this is control power, ouputs...
Feb6-13 10:17 AM
4 427
in household supply, one wire is neutral wire and another is ground. Both are at 0 potential. My question is that can...
Feb6-13 08:38 AM
2 1,448

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