Timeline for Buck-Converter input current spike
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 12, 2023 at 14:44 | vote | accept | Mustafa Turhan | ||
| Jun 9, 2023 at 17:42 | answer | added | tobalt | timeline score: 0 | |
| Jun 9, 2023 at 17:22 | answer | added | Tim Williams | timeline score: 3 | |
| Jun 9, 2023 at 16:02 | comment | added | Michal Podmanický | Try ideal inductor (no resistance) if something changed. | |
| Jun 9, 2023 at 15:34 | comment | added | Troutdog | The inductor resists changes in current. No, this spike is capacitive, related to the high side FET turning on (and the voltage at the SW node changing from 0V to 12V very quickly). In less integrated designs, it is common to put resistors on the gate drivers and the boot pin to soften these transitions. | |
| Jun 9, 2023 at 15:10 | comment | added | Mustafa Turhan | I used 18u 100mOhm inductor. Nothing chanegd. I don't think the spike is related to inductor because it doesn't occur at output. It occurs at input. | |
| Jun 9, 2023 at 14:55 | comment | added | Michal Podmanický | 150mohm resistance at 8.2uH is a terrible inductor. Try better one. | |
| Jun 9, 2023 at 14:31 | history | asked | Mustafa Turhan | CC BY-SA 4.0 |