Timeline for Self resonant frequency of buck converter
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Nov 26, 2015 at 10:21 | comment | added | yiipmann | As far as my knowledge goes, when designing a PI controller for switching converters, it should be done in such a way that its (controller's) cross-over frequency should cover the self-resonant frequency of the circuit. That is why i said that the bandwidth of the controller should be higher than 0.5*pi*sqrt(LC) (which is the self resonant frequency of a simple LC filter, the one shown in fig(a)). | |
| Nov 25, 2015 at 22:23 | answer | added | Andy aka | timeline score: 1 | |
| Nov 25, 2015 at 22:16 | comment | added | Andy aka | "bandwidth is greater than 0.5*pi*sqrt(LC)" - what does this mean? | |
| Nov 25, 2015 at 19:04 | comment | added | user02222022 | The LC resonant frequency is of little consequence for the buck converter since it is actively modulated and the controls adds poles/zeros to the overall transfer functions. Open-loop modeling as you have depicted it is not widely used. | |
| Nov 25, 2015 at 18:29 | comment | added | yiipmann | i added explanation to why i am asking this question, may be now it is more clear | |
| Nov 25, 2015 at 18:29 | history | edited | yiipmann | CC BY-SA 3.0 |
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| Nov 25, 2015 at 18:12 | comment | added | yiipmann | i just added a rough sketch | |
| Nov 25, 2015 at 18:12 | history | edited | yiipmann | CC BY-SA 3.0 |
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| Nov 25, 2015 at 18:05 | comment | added | AaronD | A schematic would be helpful here. | |
| Nov 25, 2015 at 17:58 | history | edited | yiipmann | CC BY-SA 3.0 |
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| Nov 25, 2015 at 16:19 | history | asked | yiipmann | CC BY-SA 3.0 |