Timeline for Is a flyback diode needed when using an RC snubber?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| Sep 9 at 11:33 | comment | added | Andy aka | It seems that your comments have nothing to do with this post and, I don't understand why you are making them. Maybe you should make an answer and explain what you are trying to say? | |
| Sep 9 at 0:06 | comment | added | Tim Williams | Or, if you've read the linked answer -- could you comment on it, what's missing from the simulation, or what's unrealistic about the choice and connection of components, or incorrect about the explanation text? | |
| Sep 9 at 0:06 | comment | added | Tim Williams | Andy, I'm not sure what more I can explain; I know you know about this, you're no stranger to SMPS design, and you would never suggest to build say a boost converter without the output capacitor placed nearby. Somehow, I am patently unable to communicate this idea to you here, but I cannot ascertain why. (Could someone else perhaps comment what I'm missing?) | |
| Sep 8 at 23:47 | comment | added | Andy aka | That makes no sense. Maybe it's time to explain how the capacitor proposed in your comment helps. | |
| Sep 8 at 21:16 | comment | added | Tim Williams | Wire doesn't have to be looped around to exhibit inductance, In fact inductance is a necessary consequence of nonzero length. The Q1-D1-cap loop can still generate peak voltage, worth noting as we don't know how long that +12V connection is here, it might be 10mm or 10m. More comments along these lines here: electronics.stackexchange.com/questions/175390/… | |
| Sep 8 at 19:47 | comment | added | Andy aka | I think that's a red herring. The current in the inductance of the wound device finds a local circulatory path via the diode and a bypass capacitor is irrelevant. Please review what you are saying or justify why you think it's important. | |
| Sep 8 at 18:43 | comment | added | Tim Williams | Note the diode is most effective when a bypass capacitor is placed nearby (+12V to GND). | |
| Sep 8 at 15:59 | vote | accept | Fábio Silva | ||
| Sep 8 at 15:43 | history | answered | Andy aka | CC BY-SA 4.0 |