:-) 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 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. 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. 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. 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. For more options, visit https://groups.google.com/d/optout.
