Activity for Elleanor Lopezâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #291411 |
Hi Andy,
It was my understanding that if your source and line are matched and only the end of the line is terminated incorrectly, you get a single reflection that is dissipated in the source impedance. Only if both ends of the line are mismatched there are multiple reflections that die down after ... (more) |
— | 11 days ago |
| Comment | Post #291093 |
Fair enough, it would be interesting to know what the gradient looks like for such case. I suspect that standing near 750kV you would need to place your feet incredibly precise to not create a large enough voltage to kill you between your feet. Maybe the circuit was broken in less than a 1/4 phase an... (more) |
— | 2 months ago |
| Comment | Post #276138 |
I believe the only circuit I have seen where LED had no series resistance added was with a flat cell battery, which in itself has a high output impedance, and therefore the LED gets to live another day. (more) |
— | 8 months ago |
| Comment | Post #289574 |
Additionally, disassembling will void any kind of warranty. I mean, the cables are cut now, so warranty is off the table anyway. Personally I would guess it is a defective unit, I would buy exactly the same unit, hook it up to a PC the way it is intended to be used, observe if the ''spark'' is presen... (more) |
— | 9 months ago |
| Comment | Post #289577 |
In what software did you draw these schematics? (more) |
— | 9 months ago |
| Comment | Post #289348 |
@#52991 Is there some way you can edit these tags without turning the EE forum upside down? Each tag edit floats old questions to the top of the feed. (more) |
— | 9 months ago |
| Comment | Post #287197 |
@#36396 Are you planning on finishing this? (more) |
— | 9 months ago |
| Comment | Post #288784 |
I have to say something about the 'ordinary' board part. I took a guess at what the MCU he uses might be: K64P142M120SF5 for example. Port rise time can be 4ns. The majority of energy content is in frequencies up to 0.5x t_rise, therefore the frequency of concern is from the clock of 120MHz up to 500... (more) |
— | 11 months ago |
| Comment | Post #288757 |
Thanks for the answer!
I am not taking a class, I am mostly busy with PCB design, but in the process I quite often find that I have a 'Why am I doing this in this particular way?'. So for example, application notes often specify to use 10uF in parallel with 1uF and to finish off 100nF. But when I ... (more) |
— | 11 months ago |
| Comment | Post #288641 |
So by the same logic something like electrical issues and system design with Maneuvering Characteristics Augmentation System that brought down Boeing737 MAX planes also cannot be discussed because it was covered by the media? I think the answers highlight the weak points in design choices and provide... (more) |
— | 11 months ago |
| Comment | Post #286724 |
I work in academy and this screams homework. (more) |
— | almost 2 years ago |
| Comment | Post #286538 |
@#36396 I added description on how to inspect the graph in post, and also added verbal description of the graphs in case the picture cannot be opened. It is a screenshot from a video, unfortunately I don't know how to enhance quality of that. There is also a link to the video with embedded timestamp,... (more) |
— | almost 2 years ago |