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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 94,956
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
28 58,474
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 82,872
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
0 31,203
I searched but had no luck. Sorry if this kind of thing has been answered a bunch. I'm designing a circuit for my...
Mar25-09 03:09 PM
7 12,058
i am making a tachometer which will count pulses from an inductive pikup connected to an HT lead on an engine. i am...
Mar25-09 02:47 PM
Bob S
2 4,386
Hello. I own an electrolytic capacitor which capacitance is 68 F. Something strange is written on it 400 WV. Is it...
Mar25-09 12:16 PM
3 1,708
what can be the frequency for the clock signal that is to be counted? I read on another website that it is a minimum...
Mar25-09 10:07 AM
0 3,873
Hello, The Shannon limit is Eb/N0=(2^(n)-1)/n where n=2*r So the Shannon limit for r=1/2 should be Eb/N0=1 and...
Mar25-09 03:36 AM
0 2,340
Hi All, from this page (Cylindrical Capacitor) => What...
Mar25-09 01:22 AM
5 9,457
Im creating a counter in multisim with four seven segment displays. My task is to make them count from 59.59 - 00.00...
Mar24-09 10:06 PM
6 2,227
when my pc shuts off, i want to shut off a bunch of other things too-speakers, light, monitor. to do this i need a...
Mar24-09 08:48 PM
7 2,834
Hi there I've encounted a problem in which I'm required to calculate the total capacitance between the end of a...
Mar24-09 05:07 PM
0 936
Hi there guys, I'm trying to design a bidirectional buck boost converter as part of a larger three way solar charge...
Mar24-09 04:44 PM
2 10,127
Trying to simulate leakage current, say from a reverse bias diode or even a dirty PCB. Getting funny results using the...
Mar24-09 11:30 AM
2 3,369
Ok, heres the deal. I am trying to measure how much energy (best in watts, i guess?) a device uses over a seven hour...
Mar24-09 07:59 AM
13 8,385
Can anyone explain to me what is the significance of a chopper transistor as opposed to a normal BJT? I read online...
Mar24-09 07:52 AM
12 4,003
I have an operation where I need to reduce the speed of a 24v DC bilge blower. My question is: Can I put any 12volt...
Mar23-09 07:01 PM
4 7,546
What is the name of this symbols. See Attachment.
Mar23-09 01:26 PM
1 818
After conducting CV measurements on Thin Film semiconductor wafers, how do we determine the behavior of the wafer...
Mar23-09 12:09 PM
1 999
Hi there, Is there any such thing as a tiny sound-emitting chip that you can program to emit a sound upon the press...
Mar23-09 03:17 AM
0 1,112
Hi all, In the circuit 1, R1 is ever, at least, 100000 times lower than R2. Is it possible to assume the second...
Mar23-09 01:24 AM
10 1,192
To all the experts: Ok, in this example, I'm going to have an "ideal" circuit with no ohmic losses, etc. just for...
Mar22-09 03:56 PM
7 3,617
Hi, I have a problem about EMF and/or Voltage. Let their are 100 electron at a place A and 200 electron at place...
Mar22-09 11:56 AM
Carl Pugh
3 6,124
Hey guys. Can someone help me with this circuit? Where...
Mar21-09 08:27 PM
5 1,323
I do not agree with the "answer" below. What do you think about it? Question: When you turn the key in an...
Mar21-09 12:16 PM
Bob S
15 5,634
Hey guys I'm dissecting this pencil sharpener to see how it works. I understand every component except one. The...
Mar21-09 08:06 AM
2 1,202
Hi Guys, I have the following circuit I want to analyze: I do not understand...
Mar20-09 10:08 PM
Bob S
5 1,938
Hello, I want to connect 2 current amplifiers the same time and I want to be able to switch between them. How...
Mar20-09 09:50 PM
Bob S
1 865
Hello, I'm working on a design idea and have run into a problem. Despite multiple google searches from different...
Mar20-09 03:59 PM
10 1,817
Hi Can someone help me on how i can calculate the input common mode range for this pmos diff pair. I'd have an idea...
Mar20-09 12:00 PM
3 4,899
I operate a CNC router table with a high speed spindle. I'm looking to upgrade to a new spindle but need to know if...
Mar19-09 05:32 PM
3 2,996
any of you every attempt to design and build a tesla coil. I would love to build one . Can any of you share your...
Mar19-09 05:23 PM
8 6,311
how do i measure the current flow threw the neutral wire if phase R is open circuited? the impedance per load is 3+7j
Mar19-09 12:38 PM
Carl Pugh
1 1,130
Hello, I am in need of a schematic for a circuit that acts as a stopwatch which counts and displays seconds and...
Mar19-09 04:39 AM
1 4,320
I want a matlab code to draw the root locus for a characteristic equation of a transfer function of unity feedback,...
Mar19-09 04:19 AM
1 1,860
I thought it would be a good idea to write this down, all in one place, finally. Any errors, or impovements needed?...
Mar19-09 04:16 AM
10 8,064
I am looking for a circuit that takes a voltage to preselect a power and than outputs that power through a variable...
Mar19-09 02:24 AM
3 1,299
Hi all, Here is a picture of two circuits. The one at the left is stimulated with a current source and the other...
Mar18-09 10:25 PM
3 1,980
I want to know where can you find thermocouples in a store to buy or can you make them by using house hold items? The...
Mar18-09 06:21 PM
7 2,934
Hello this is my first posting. I have a device that I acquired from my old high school. It is a demonstration unit of...
Mar17-09 09:15 PM
Bob S
3 5,129
I was just curious what would happen if a device working at for example, 5 V DC voltage, is given 10 V peak to peak AC...
Mar17-09 09:03 AM
3 956
In a 480v Three Phase Induction Motor.....what kind of educated guess or assumption can be made as a cause, when two...
Mar16-09 10:33 PM
1 5,979
Can anyone point me to a long range distance sensor. I'm not sure what types they have out there other then...
Mar16-09 07:07 PM
4 5,769

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