Activity for Olin Lathropâ€
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| Edit | Post #278601 | Initial revision | — | about 4 years ago |
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Rules and guidelines for drawing schematics? We see schematics of varying quality and conventions. What is good and bad? What are the rules and conventions for drawing good schematics? What matters? What doesn't? This question is about schematics, not the circuits they represent. (more) |
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| Edit | Post #278582 |
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| Edit | Post #278582 | Initial revision | — | about 4 years ago |
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A: Can I ask a question to which I have a possible answer? Self-answered questions can be OK here. Those are best when they are canonical questions on topics likely to come up. Some examples where I have done this are: What is a bootloader, and how would I develop one? How to calculate pullup resistor value for pushbutton? In all such cases, t... (more) |
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| Comment | Post #278548 |
@Circuit: But that's not what you did. If you have an idea in mind that you want validated, *ask about it specifically*. What you really did was grandstanding masquerading as a question. This will **not be tolerated** in the future. Consider yourself on thin ice. Future questions that aren't spe... (more) |
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| Comment | Post #278548 |
@Circuit: If you already had a specific idea you weren't sure of, then why didn't you ask about that? If you already had an answer, then what was the point of asking the question in the first place? Either way, it seems you were just wasting other people's time. (more) |
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| Edit | Post #278548 | Initial revision | — | about 4 years ago |
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A: Is it possible for one transistor to switch between two loads? It's not clear what you are really asking, but here is something that might fit your requirements: Image First, R1 and R2 can be considered separate loads. The transistor therefore switches two loads. This circuit can also be used to produce two signals, one inverted from the other. This u... (more) |
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| Edit | Post #278522 | Question closed | — | about 4 years ago |
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| Comment | Post #278484 |
@2kind: The secondary already needs to put out a bit higher voltage than you actually want. You don't want to do every pulse in a pulse on demand system, since that means there is no margin for higher current demand. I have used a linear post-regulator a few times, usually not for reduced ripple, b... (more) |
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| Edit | Post #278477 |
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| Edit | Post #278484 | Initial revision | — | about 4 years ago |
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A: Control circuit for Power Converters I'll assume by "PMIC" you mean a dedicated switching power supply chip. Such a chip contains the PWM generator and receives output voltage feedback at a minimum. They may also include a driver for an external FET as the switching element, include the switching element directly, include the diode wi... (more) |
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| Comment | Post #278478 |
Your original question asked "which is better". We don't do opinion-based answers here. I have edited your question to fit the site, else we would have to close it completely. (more) |
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| Edit | Post #278478 |
Post edited: Fixed to make on-topic |
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| Edit | Post #278477 | Initial revision | — | about 4 years ago |
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A: Filtering the high frequency noise in switching PSU A switching power supply already is inherently a filter. Current is coming thru an inductor, followed by a capacitor to ground. If you are asking what additional is usually done to filter out changes in the output voltage (not common mode, that's a totally different issue), then the typical answe... (more) |
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| Edit | Post #278465 | Initial revision | — | about 4 years ago |
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A: High Speed Design - Which grounding strategy to choose? You are right in that at high speeds, like over 2 GHz, things are different than in "ordinary" circuits. The post of mine that you quoted was written in the context of such ordinary circuits. The lumped system approximation that is valid for ordinary boards fails at high frequencies. You have to... (more) |
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| Edit | Post #278462 | Initial revision | — | about 4 years ago |
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A: Why there is a body diode in mosfets? in my engineering curriculum .. I never found a diode in a mosfet symbol Then you should ask for your tuition back, or perhaps the institution should want their diploma back. but in datasheets there is a diode called as body Right, because there is. It is possible to make such FETs without ... (more) |
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| Edit | Post #278449 | Initial revision | — | about 4 years ago |
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A: Filter Impedance Consideration If I have a filter stage between an antenna and an LNA, wouldn't I want the load impedance(input to the LNA) to be large with respect to the source(antenna) in order to not attenuate the signal even further? Not necessarily. What you want is maximum power transfer, not maximum voltage. Power is... (more) |
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| Edit | Post #278445 |
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| Comment | Post #278421 |
@coq: No need to edit the question. The note makes it clear enough what is going on. (more) |
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| Edit | Post #278421 | Initial revision | — | about 4 years ago |
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A: I have to choose: Arduino or Raspberry pi. This site isn't appropriate for telling you what to choose. We can, however, give you information on microprocessors versus microcontrollers. Microprocessors and microcontrollers are intended to different applications. As a result, they have different capabilities, and different tradeoffs of use... (more) |
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| Edit | Post #278380 | Initial revision | — | about 4 years ago |
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A: Mixers and Audio Extraction in a DCR Architecture It seems your question comes down to how to demodulate a SSB (single sideband) signal. Note that the single sideband is already the signal you want, just shifted by some fixed frequency. One way to recover the original baseband signal is therefore to frequency shift it. This is usually done by m... (more) |
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| Edit | Post #278378 |
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