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Re: OL-DRSSTC - 12



Original poster: "Dmitry (father dest)" <dest@xxxxxxxxxxx>

> Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>

> Hi All,

> Today I tracked down the voltage droop problem.

> When the IGBTs turn on, the voltage across the caps drops to the 10
> volt IGBT rail.  The electrolytics contribute NO real current to the
> oscillation!!!

and if they should do it? :-)
could you give such parameters of your electrolytics like esr & esl,
and their Fres?