Dave, I will be making schematics available for all of my projects as they get finalized. The schematic and layout for the TPS63061 is actually pretty straight-forward. The only tricky part is the size of the footprint (3mm x 3mm). If you only need a buck regulator, there are other options in friendlier footprints (like SO-8). For example, I'm considering something like the TPS5430 for the BeagleDrone project where the power source will be 3S or 4S LiPoly packs.
Thanks, Juanjo. One of my requirements for those boards was to be able to power a BB from vehicle power. I do have another board planned which is almost exactly what you've described: PowerCape + battery charger. It will automatically switch to battery power on DC loss, and charge the battery on DC restore. -Ron On Tuesday, November 12, 2013 8:53:11 AM UTC-6, Juanjo wrote: > > Your PowerBar and PowerCape are great. PowerBar is quite interesting for > Automotive applications where you got 12-14V power. > > I'm really looking for a UPS like cape which can give me backup power via > a LiPo/LiIon in case main power goes out and re-charge the battery. Maybe > is a good feature for next version of PowerCape > > Currently we can only have 1 LiPo/Ion backup with the included TPS but > just limit us to 3.3V rail of the BBB and not the 5V rail which usually > supply extra capes and USB. > > On Monday, November 11, 2013 7:32:22 PM UTC-3, Ron B wrote: >> >> Dieter, you're right, linear regulators do waste a bunch of power. Just >> FYI, I took a *quick* look at the ADP1111 and it doesn't look to me like >> it's going to have enough power for the BB. >> >> I'm using the TPS63061. It's a great part but the footprint isn't >> exactly prototype friendly. If you're interested, I have a small write-up >> and pic of my board here <http://andicelabs.com/beaglebone-power-bar/>. >> >> -Ron >> >> On Monday, November 11, 2013 3:22:39 PM UTC-6, Dieter Wirz wrote: >>> >>> Ron is perfectly right! >>> And where do you get cheap rechargeable batteries? >>> LIPO prices are going down >>> alcaline prices are going up >>> >>> Do you really want to invest time and money in last millennium >>> alcaline technology? >>> >>> 7805? If you connect 9v to an 7805 about 40% of the power is converted >>> to heat. There are much better solutions available. >>> >>> BTW @Ron: What buck/boost regulators are you using. Maybe you can >>> provide some hints to the community... I have the ADP1111 sitting on >>> my Desktop, but I did not find the time to solder something >>> together..... >>> >> -- 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]. For more options, visit https://groups.google.com/groups/opt_out.
