Activity for Lorenzo Donati
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #289161 |
@#36396 Thanks for your words. I really didn't think of papers. I was trying to write something for the wiki of the dynamic-resistance tag and it went "out of hands" quickly. So I thought to a "canonic" q&a.
Unfortunately I have no extra time to make good graphs (they are really time-wasters, at ... (more) |
— | 9 months ago |
| Edit | Post #289161 |
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— | 9 months ago |
| Edit | Post #289161 |
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— | 9 months ago |
| Edit | Post #289161 |
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— | 9 months ago |
| Edit | Post #289161 |
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| Edit | Post #289161 | Initial revision | — | 9 months ago |
| Answer | — |
A: What is dynamic resistance? Is it related to differential resistance or to incremental resistance? Introduction Yes, all those terms denote the same concept, that of differential (or incremental, or dynamic) parameter of a device. In the following I will explain such a concept initially in the context of dynamic resistance, but it will be apparent that the same concept has a wider applicatio... (more) |
— | 9 months ago |
| Edit | Post #289160 | Initial revision | — | 9 months ago |
| Question | — |
What is dynamic resistance? Is it related to differential resistance or to incremental resistance? What is the concept behind the dynamic resistance that often pops up when dealing with non-linear components and the circuits in which they are employed? Is the concept related to other terms like differential resistance or incremental resistance? (more) |
— | 9 months ago |
| Edit | Post #280537 |
Post edited: Improved tagging. |
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| Edit | Post #279585 |
Post edited: Improved tagging. |
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| Edit | Post #276883 |
Post edited: Typos. |
— | 9 months ago |
| Comment | Post #277272 |
@#36396 Just a curiosity: what's the software you use for the schematics you post? They are quite neat. I usually refrain from posting many schematics because the only software I have that lets me draw the schematic quickly is LTspice, but from a graphical POV their appearance is a bit ugly. (more) |
— | 9 months ago |
| Edit | Post #277271 |
Post edited: Added appropriate tag. Removed misleading tag. |
— | 9 months ago |
| Edit | Post #277271 |
Post edited: Added appropriate tag. Removed misleading tag. |
— | 9 months ago |
| Comment | Post #281307 |
I totally agree on the general content of your answer. However I object on your final statement "Trying to split hairs about what they maybe should have called these pins is pointless". It seems you are trying to dismiss the OP concerns about "are NC pins actually NC?" and that's where I don't agree.... (more) |
— | 9 months ago |
| Edit | Post #289149 | Initial revision | — | 9 months ago |
| Question | — |
How about a `basic-circuit-block` tag? I'm in the process of giving the tags page some structure, writing tag descriptions and creating synonyms and some hierarchy. I'd like to know the Community stance on a new tag I'd like to add: `basic-circuit-block` It should act as a parent for tags that denote all those basic electronic ci... (more) |
— | 9 months ago |
| Edit | Post #288969 |
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| Edit | Post #288969 |
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| Edit | Post #288969 |
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| Comment | Post #282151 |
The image of the website that shows a step-down DC-DC converter doesn't seem to be that of an *inductorless* converter, as you hint in the text of your post. That big gray square thing with that 100 printed on it seems just a 100μH inductor to me. (more) |
— | 9 months ago |
| Edit | Post #288969 |
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| Edit | Post #288969 |
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| Edit | Post #276138 |
Post edited: Reformatted for better readability. Some minor grammar and wording adjustments. |
— | 9 months ago |
| Edit | Post #276928 |
Post edited: Reformatting for better readability. |
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| Edit | Post #285814 |
Post edited: Removed redundant tag. |
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| Edit | Post #288922 |
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| Edit | Post #289110 | Initial revision | — | 9 months ago |
| Answer | — |
A: What effect will extreme temperatures have on characteristic impedance of a wire? RG58 cables come in different variations, even with Teflon dielectric suitable for 200°C operations. Your cable, being suitable for up to 80°C, seems to be one of those with a PVC jacket and Polyethylene inner insulator, like this. It's bad news for several reasons, and Olin explained a few. I'll... (more) |
— | 9 months ago |
| Edit | Post #286594 |
Post edited: Added adjective "characteristic" to "impedance" in title and in the content to clarify the question and avoid confusion with other types of impedances. |
— | 9 months ago |
| Edit | Post #286613 |
Post edited: Inserted location in the title (was given in a comment to an answer). Reformatted content. Improved grammar. Added SI unit value for distance in feet. |
— | 9 months ago |
| Suggested Edit | Post #286594 |
Suggested edit: Added adjective "characteristic" to "impedance" in title and in the content to clarify the question and avoid confusion with other types of impedances. (more) |
helpful | 9 months ago |
| Suggested Edit | Post #286613 |
Suggested edit: Inserted location in the title (was given in a comment to an answer). Reformatted content. Improved grammar. Added SI unit value for distance in feet. (more) |
helpful | 9 months ago |
| Edit | Post #289107 |
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| Edit | Post #289107 | Initial revision | — | 9 months ago |
| Answer | — |
A: Low-pass filter after the output DAC in CD players One of the main reasons was hinted by Olin's answer, at the end, when he spoke about non-linearities. The same is hinted in the excerpt in Nick Alexeev's answer ("they would overload the player amplifier"). I want to be explicit and mention a very easy example: consider a simple amplifier with a v... (more) |
— | 9 months ago |
| Edit | Post #287535 |
Post edited: Typos. |
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| Edit | Post #287555 |
Post edited: Typos. |
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| Edit | Post #287554 |
Post edited: Typos and grammar. General formatting. |
— | 9 months ago |
| Suggested Edit | Post #287535 |
Suggested edit: Typos. (more) |
helpful | 9 months ago |
| Suggested Edit | Post #287555 |
Suggested edit: Typos. (more) |
helpful | 9 months ago |
| Suggested Edit | Post #287554 |
Suggested edit: Typos and grammar. General formatting. (more) |
helpful | 9 months ago |
| Edit | Post #281322 |
Post edited: Made the title more coherent with the content of the post, while trying to preserve its original form. |
— | 9 months ago |
| Suggested Edit | Post #281322 |
Suggested edit: Made the title more coherent with the content of the post, while trying to preserve its original form. (more) |
helpful | 9 months ago |
| Edit | Post #289094 | Initial revision | — | 9 months ago |
| Answer | — |
A: Why is the resistance of water so high and still so dangerous? Most of the issues have been discussed by other answers. However I would like to clarify something about pure water (a.k.a. "distilled water" or "demineralized water"), which is "apparently" not a good conductor and would seem to pose less danger than tap water or other "dirty water". To avoid giv... (more) |
— | 9 months ago |
| Edit | Post #289090 |
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| Edit | Post #289056 |
Post edited: Cleaned up formatting and wording. Added math formatting. |
— | 9 months ago |
| Edit | Post #289090 |
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