Activity for Olin Lathropâ€
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Edit | Post #283172 |
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— | over 3 years ago |
Edit | Post #283172 |
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— | over 3 years ago |
Edit | Post #283172 | Initial revision | — | over 3 years ago |
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A: 2 bit subtractor using full subtractor We don't just give direct answers to homework (or homework-like) questions here, but can help you work thru the problem on your own. You might consider trying to synthesize a subtractor from scratch, just like you would an adder. The fundamental building block of an adder is the half-adder. It t... (more) |
— | over 3 years ago |
Edit | Post #283099 | Initial revision | — | over 3 years ago |
Question | — |
What is this metal panel under power lines? I was hiking around the Berkshires in western Massachusetts yesterday, and came across this metal panel where some power lines were crossing a ridge: Image alt text Image alt text Image alt text The panel is a few meters wide, and appears to have no electrical connection to it. It cost... (more) |
— | over 3 years ago |
Comment | Post #282848 |
Please don't include the disclaimers that you show. It's your personal content, so you can use it here too without it being plagiarism. As for stating that the answer is made up, that just adds noise. Someone with that problem looking for the answer isn't going to care. Everyone can see that the ... (more) |
— | over 3 years ago |
Edit | Post #282850 |
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— | over 3 years ago |
Edit | Post #282850 | Initial revision | — | over 3 years ago |
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A: Can a paper be a tutorial or textbook-like? This is a good question. I wasn't originally envisioning introductions to known concepts, but that might work if well written. If so, the Paper should at least be clearly labeled as such. We don't have a lot of Papers, and I wouldn't want to see introductory material drowning out new concepts. I ... (more) |
— | over 3 years ago |
Edit | Post #282849 |
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— | over 3 years ago |
Edit | Post #282849 | Initial revision | — | over 3 years ago |
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A: What are the guidelines for porting one's answers from ElectricalEngineering.SE, if any? Sorry I didn't notice this earlier. We definitely don't just want to import questions and answers directly from SE. This has been discussed several times on various Codidact sites. Some of the first few Codidact sites did mass-import from SE, and that didn't go very well. Those sites are doing ... (more) |
— | over 3 years ago |
Edit | Post #282575 |
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Edit | Post #282746 |
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Edit | Post #282746 | Post undeleted | — | over 3 years ago |
Edit | Post #282746 | Post deleted | — | over 3 years ago |
Edit | Post #282746 | Question closed | — | over 3 years ago |
Edit | Post #282742 |
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— | over 3 years ago |
Edit | Post #282745 | Initial revision | — | over 3 years ago |
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A: Input offset voltage/bias current noise contribution in operational amplifiers While input offset voltage is technically noise in the sense that it is something unwanted added to the signal, it is not included in opamp noise specs as far as I have seen. Think of the "noise" spec as the AC part of the noise, with the offset voltage and current telling you about the DC part of... (more) |
— | over 3 years ago |
Edit | Post #282738 |
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— | over 3 years ago |
Edit | Post #282738 |
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— | over 3 years ago |
Edit | Post #282742 |
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— | over 3 years ago |
Edit | Post #282738 |
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— | over 3 years ago |
Edit | Post #282738 |
Post edited: Fixed image. |
— | over 3 years ago |
Edit | Post #282742 | Initial revision | — | over 3 years ago |
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A: Electric circuit with antenna Antennas are not lumped-parameter systems. They may be open circuits or shorts at DC, but this changes as the frequency goes up. They aren't just a bunch of wires anymore at the intended operating frequency. Take a simple dipole as example. It's just two disconnected wires at DC, but that doesn... (more) |
— | over 3 years ago |
Edit | Post #282729 | Question closed | — | over 3 years ago |
Edit | Post #282724 | Initial revision | — | over 3 years ago |
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A: Diodes used in mixers Take a look at the circuit and try to see what function it will perform on the input signals to yield the output signal. For simplicity, let's consider the diode ideal, R1 and R2 the same, and R3 much larger. R1 and R2 will average the two input signals onto the anode of the diode. The diode wil... (more) |
— | over 3 years ago |
Edit | Post #282711 | Question reopened | — | over 3 years ago |
Edit | Post #282721 | Initial revision | — | over 3 years ago |
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A: Trouble understanding how to use adjustable LDO regulator I just happened to re-read this question, and I now think I see better what Microchip was trying to say here: On closer examination, I think this is actually correct but badly worded. I believe it should be interpreted as: Dropout voltage is defined as the input-to-output differential when... (more) |
— | over 3 years ago |
Comment | Post #282672 |
@Kranulis: While we do give some extra slack, ultimately we don't tolerate lazy students or sloppy engineering just because this site is still young. If this site had high traffic, this question (and probably a few others with the same crayon schematics) would have simply been closed and forgotten. ... (more) |
— | over 3 years ago |
Edit | Post #282711 | Question closed | — | over 3 years ago |
Comment | Post #282711 |
This question is too broad in its current form. Show a circuit of what you call a "unbalanced frequency mixer", and we can probably explain how it works. Or, give a proper spec for what this circuit is supposed to do, and we might be able to show how diodes could be used to advantage. (more) |
— | over 3 years ago |
Edit | Post #282696 | Initial revision | — | over 3 years ago |
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A: MOSFET differential to single ended converter intuition To be clear and protect against possible future edits, here is the circuit being discussed: As you say, this is a differential to single ended converter. In this case, the MOSFETs have likely been optimized so that they act as voltage-controlled current sources over most of their range. They... (more) |
— | over 3 years ago |
Edit | Post #282672 |
Post edited: |
— | over 3 years ago |
Edit | Post #282672 | Initial revision | — | over 3 years ago |
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A: Voltage of tank circuit is invalid You need to be more careful. First, you should have been able to see for yourself that the first equation isn't written right. I'll assume the whole "-0.5t" is the exponent of e. You were too sloppy to notice, or too lazy to fix it. Either way, it's really rude to the volunteers here. That's w... (more) |
— | over 3 years ago |
Edit | Post #282627 |
Post edited: |
— | over 3 years ago |
Edit | Post #282627 | Initial revision | — | over 3 years ago |
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A: Capacitor in 2nd stage of opamp That looks like the internal compenstation capacitor. It creates a single dominant pole over most of the opamp's intended operating range. Opamps with dominant pole compensation can be characterized by a fixed gain bandwidth product from a bit past the dominant pole frequency and higher. This ch... (more) |
— | over 3 years ago |
Edit | Post #282585 | Question reopened | — | over 3 years ago |
Comment | Post #282585 |
Hmm. It's still pretty hard to read. What's that thing in the top middle of the schematic, for example? Also, the equations in your text are unreadable. We have MathJax here for that. I'll reopen it this one time, but in the future this won't be good enough. You wouldn't hand in homework this i... (more) |
— | over 3 years ago |
Comment | Post #282585 |
This question is closed because the diagrams are unreadable. You should have been able to see that for yourself. Each circuit should probably be a separate image, and any text between should be normal text in the question. Text in images doesn't work for indexing and searching. While you're at it... (more) |
— | over 3 years ago |
Edit | Post #282585 | Question closed | — | over 3 years ago |
Edit | Post #282575 |
Post edited: |
— | over 3 years ago |