[beagleboard] Beaglebone Black - Power supply and shutdown process.

2017-09-04 Thread michael . james . kearsey
Hello,

I have inherited a project which contains a Beaglebone Black within the 
design. I have no particular knowledge of the beaglbone.

I am attempting to design a power backup for the beaglebone to ensure 
corruption does not occur when power is lost. I understand this can happen. 
Apparently it has happened with this product.

For that, I'm looking to use a relatively new device from LT being LTC3643. 
Basically, it charges a capacitor/super-cap arrangement during one mode, 
discharges the supper-cap by regulating to the load in another mode when 
the power is lost. Seeming quite nice.

I've been looking through the pages and pages of information to determine 
the following questions about the beaglebone.

Q1. In the real world, how long does the beaglebone black take to shutdown?
Q2. Apparently the power button is held down for 8 seconds. Does this 
shutdown period commence from the end of that 8 seconds?
Q3. From the notes left to me, I'm assuming the continuous current 
consumption to be 500mA at the 5V supply. Would anyone have an idea of what 
that may be during the shutdown period.

Ultimately, I'm attempting to determine some supercap sizing here.

Regards,

Michael Kearsey

-- 
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 beagleboard+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/beagleboard/0e61-342a-4c9d-8787-34b44b502f49%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.


[beagleboard] BeagleBone Black Power Supply

2014-07-10 Thread adrian_hotmail_8
Hi all,

I would like to purchase a power supply for the BeagleBoard Black. I'm 
currently looking at this:

http://hobbyking.com/hobbyking/store/__20968__Hobbyking_60w_Power_Supply.html

It outputs 15v and 4A (60W)

However, the performance of that thing is over what is stated in the FAQ of 
BeagleBoard Black(2A, 10W).

Will this work or will it fry the Board?

Regards,
-A

-- 
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 beagleboard+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.


Re: [beagleboard] BeagleBone Black Power Supply

2014-07-10 Thread Gerald Coley
It will fry the board.Max voltage is 5V.

http://www.elinux.org/Beagleboard:BeagleBone_Black_Accessories


Gerald


On Wed, Jul 9, 2014 at 5:03 PM, adrian_hotmai...@hotmail.com wrote:

 Hi all,

 I would like to purchase a power supply for the BeagleBoard Black. I'm
 currently looking at this:


 http://hobbyking.com/hobbyking/store/__20968__Hobbyking_60w_Power_Supply.html

 It outputs 15v and 4A (60W)

 However, the performance of that thing is over what is stated in the FAQ
 of BeagleBoard Black(2A, 10W).

 Will this work or will it fry the Board?

 Regards,
 -A

 --
 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 beagleboard+unsubscr...@googlegroups.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 beagleboard+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.