> > :-) I've often wondered how many people post in here trying to be seen as > knowledgeable. Great comments William >
Perhaps a poor choice of words . . .but both definitely know more about power electronics than I. Which I'm afraid isn't saying much. On Mon, Jul 4, 2016 at 9:38 PM, 'Mark Lazarewicz' via BeagleBoard < [email protected]> wrote: > :-) I've often wondered how many people post in here trying to be seen as > knowledgeable. Great comments William > > Sent from Yahoo Mail on Android > <https://overview.mail.yahoo.com/mobile/?.src=Android> > > On Mon, Jul 4, 2016 at 4:11 PM, William Hermans > <[email protected]> wrote: > kzsoltkzsolt, > > I would like to point out to you that you're talking to *the* person who > designed the beaglebones, who also used to work for Texas Instruments at > some point in his career. Someone who has made his designs free of charge > to the public, which he has made perfectly clear to you in these post that > you're free to change and use for your own personal use. > > So, telling him things, he probably already knows, in hopes of making > yourself looks good. Actually make you look like a "know it all". e.g. it > doesn't make you look good. > > SO perhaps you should realize that Gerald is probably well aware of what > you're trying to discuss here, but is unwilling to change for various > reasons. Reason, that you, I, or the next person do not need to understand. > Because we can change to designs to our own liking if we so wish. > > On Mon, Jul 4, 2016 at 1:55 PM, Gerald Coley <[email protected]> > wrote: > >> Thank you for your feedback. >> >> Gerald >> >> On Mon, Jul 4, 2016 at 3:18 PM, <[email protected]> wrote: >> >>> First of all making changes on design "tomorrow" is irresponsible, so I >>> never request it. But good to know where is some "leak" in design. For >>> example it is help to make workaround. >>> >>> "TI did not write that specification" >>> No, but use it in all reference design. See TI TPS20x1 PDS >>> application information. See for example TPS2051 docu Fig 33. >>> >>> "If you put the CAP after the switch then ..." >>> Then why CAP placed OUT of PDS in all TI application information? >>> Because PDS has soft start feature which prevent overload IN (BBB SYS >>> power rail). See for example TPS2051 docu Fig 4 and 8. >>> Fig 8 is perfect draw for this. The soft start feature limit charge of >>> 100uF to 0,5A, therefore current never exceed USB1 and 2 current limit, >>> therefore no dip on IN. >>> This is one main function of PDS. >>> >>> "I did not design the board for your application" >>> It is not required. But during research work to specify our problem I >>> found many topic where users discover mysterious problems with power >>> supply, and try to found a right one for BBB. This can be originated from >>> startup current peak. >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/beagleboard/b974f98a-0cff-4380-af1f-9ce5db9e199f%40googlegroups.com >>> <https://groups.google.com/d/msgid/beagleboard/b974f98a-0cff-4380-af1f-9ce5db9e199f%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> Gerald >> >> [email protected] >> http://beagleboard.org/ >> [email protected] >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/CAHK_S%2BcAH_U%3DVtJmLq62wrVPmRg8%2Bn27YjWM_oeorZezSTKorQ%40mail.gmail.com >> <https://groups.google.com/d/msgid/beagleboard/CAHK_S%2BcAH_U%3DVtJmLq62wrVPmRg8%2Bn27YjWM_oeorZezSTKorQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CALHSORo-TL2x_vUEni%2B-daiSEQXxLUU_N5p%2BEh%2Bt6tzpuuPT0g%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CALHSORo-TL2x_vUEni%2B-daiSEQXxLUU_N5p%2BEh%2Bt6tzpuuPT0g%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/1046652277.1700874.1467693539920.JavaMail.yahoo%40mail.yahoo.com > <https://groups.google.com/d/msgid/beagleboard/1046652277.1700874.1467693539920.JavaMail.yahoo%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CALHSORp3-q6tDCrfVCcgE8-gP3nO0XXvGd8v%3D4SGHESW7v8UaA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
