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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 96,553
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 59,082
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 83,882
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
0 31,503
I'm trying to plot the PSD of a signal, I did it using the fft function but I was wondering if there is another direct...
May22-11 10:13 AM
2 5,537
Very silly doubt....If say I had a voltage divider circuit with 2 equal Resistance say R applied between 1.V=5v and...
May22-11 07:34 AM
4 1,110
I am using a TI uA741CPE4 op amp for a voltage follower, but it's not working correctly. Here is how I have it...
May22-11 05:07 AM
4 1,928
Hi. Does anyone knows about a DC power supply that can switch between forward bias and reverse bias automatically? For...
May22-11 01:42 AM
10 1,934
Seeing the other thread about "How I view AC" and the talk of drift velocity reminded me of a question I had a number...
May21-11 10:54 PM
Bob S
2 1,282
What is the easiest, cheapest what to increase the range of this RF transmitter? Right now it outputs 8mW which gives...
May21-11 08:18 PM
4 4,139
Hi every one, i want to design astable circuit using op_amp and i want control TH ,TL,VH and VL for example VH=x...
May21-11 06:20 PM
3 1,490
This may seem like a dumb question, but is a dielectric constant calculated from a measured capacitance normalized to...
May21-11 05:13 PM
2 1,643
Hi everybody I run the example from silvaco website(Hall Voltage for n-type and p-type resistor). But my output is...
May21-11 06:44 AM
0 1,396
The excuse given to why energy conversion efficiency even exists, is because that some of the energy is converted to...
May21-11 01:13 AM
6 4,906
I'm trying to figure out the easiest way to make a simple switch that toggles between two different RCA audio inputs....
May21-11 12:21 AM
1 817
Does this ever have meaningful data to it? What are its applications? I am measuring a signal that will have...
May20-11 10:29 PM
7 1,833
I am trying to setup a circuit with an op-amp that is referenced to high rather than ground and has a positive gain...
May20-11 09:08 PM
2 983
Does anyone know of any instance where the the time constants of two RC circuits in series is additive. It seems that...
May20-11 07:37 PM
11 1,423
I've read loads of explanations but can't find any that are detailed enough. Using a NPN bipolar transistor as an...
May20-11 06:28 PM
1 2,521
Can wind disrupt TV reception in any way other than the two most obvious ways: 1) blowing the receiving antenna out of...
May20-11 04:03 PM
4 1,698
Is that right to see AC as current that flows like that? (marked in red) ...
May20-11 03:32 PM
25 2,373
Dear All, I have a task at hand to design a controller circuit to modulate ON/OFF a high voltage function...
May20-11 01:25 PM
14 2,107
Hello everyone, i have a 312MHz square wave oscillator and want to generate a 312MHz sinewave with it.i googled it...
May20-11 12:53 PM
14 2,024
When a capacitor is fully charged does it block AC or DC?
May20-11 12:42 PM
8 15,122
Hi, I've looked everywhere for an explanation of this, including this forum, and none of them seem to satisfy the...
May20-11 12:31 PM
6 1,623
Hi everyone, I am a member of an educational group at my school and I proposed to my boss that we make a ferrofluid...
May20-11 11:09 AM
12 4,882
I am very curious as to how it's possible for DVDs to even work. After all, DVDs have a single stream of bits encoded...
May20-11 10:55 AM
12 1,318
Hi, this is my first post. I did a quick search and didn't see anything relevant. I finish my B.S.E.E. in August. ...
May20-11 09:09 AM
3 1,224
If I have a variable voltage coming from a wind turbine of about 1 V, how can I step it up, at a low cost, to a...
May20-11 06:09 AM
2 2,893
Hi I have a practical problem/question: I need to wire 2 PLC-s for communications (RS485 signal) and I am...
May20-11 06:01 AM
1 2,004
Hi.. We are hoping to start a laser tag-like game that people play 24 hours/day, and it's basically a giant game of...
May19-11 09:20 PM
11 2,273
Hello Everyone, I have a question about how power amplifiers output their power to 3 phase motors. Im using a...
May19-11 01:07 PM
1 2,024
Right now I am working on a small pump that is capable of running on solar power for 24 hours a day. So far, I have...
May19-11 12:15 PM
4 1,446
I've been thinking abut getting some MOSFETs to play around with (my classes skipped right over that particular...
May19-11 09:10 AM
3 2,449
Hi, I'm trying to design a simple differential amp with extremely high input impedance. I'm using a couple of JFETs at...
May19-11 07:42 AM
4 1,880
Hello, I am trying to understand input AC source signal amplification. But since my image is so blurry in my textbook...
May19-11 04:19 AM
19 1,781
Since I don't have a function generator, for some experiments at home with digital ICs I've used a 555 timer with 5V...
May19-11 12:37 AM
19 2,695
I want to sample a signal in optical communication (like infrared communication) The channel input X(t) is the...
May19-11 12:04 AM
0 759
I have many sources which cause impulse response in the receiver at different point of time, says t1=1;t2=1.2;t3=1.6;...
May19-11 12:01 AM
0 566
I have a sense resistor connected in series with the neutral wire. From the oscilloscope i detect noise of around...
May18-11 10:28 PM
25 3,074
Hi all. I have been banging my head about this problem for the last week and a half-- Fourier Transform. Some...
May18-11 08:06 PM
2 848
Hi there, Need your help guys. I need to convert the attached 3 phase power supply to a normal UK 240v power...
May18-11 03:26 PM
7 2,908
I want to find out how computer language compilers works from hardware point of view. How logic gates are implemented...
May18-11 12:21 PM
8 1,387
What is the truth? I am evaluating some UPS with main subject output power factor 0.9 .... as example on on the...
May18-11 11:44 AM
2 568

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