Re: [Discuss-gnuradio] Portable battery for USRPs
As indicated on the silk screening of the front panel of the USRP(s) they are powered by 6V DC @ 3A (Center pin is positive, outer negative). It's fairly easy to find battery solutions that meet this criteria directly without using the AC adapter. I have built light weight Li-Ion solutions for USRPs also, you need to take a little more care with these, there nominal voltages tend to be significantly higher than 6V and the details of what USRP/daughter board is being used can be important. Stick with a lantern style battery or gel cell if you want to keep it simple and safe. On Jul 29, 2013, at 10:46 AM, aseem wadhwa wrote: > Hi! > > I have to do a few outdoor experiments with USRPs. Hence I'm looking for > portable batteries that can be used for this purpose. After searching a bit, > the best option that seems to me is to use 12V heavy duty lantern battery > followed by a 12V to 110V DC to AC inverter, which can then be used for the > USRP adapter. The combined assembly is still a bit heavy for me. Is there any > other better (lighter) option ? Are there any batteries specifically designed > to be used with USRPs ? > > Thanks in advance. > > regards, > Aseem > > -- > Aseem Wadhwa > Graduate Student > Electrical & Computer Engineering > University of California Santa Barbara > ___ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Portable battery for USRPs
On 07/29/2013 02:16 PM, Ian Buckley wrote: As indicated on the silk screening of the front panel of the USRP(s) they are powered by 6V DC @ 3A (Center pin is positive, outer negative). It's fairly easy to find battery solutions that meet this criteria directly without using the AC adapter. I have built light weight Li-Ion solutions for USRPs also, you need to take a little more care with these, there nominal voltages tend to be significantly higher than 6V and the details of what USRP/daughter board is being used can be important. Stick with a lantern style battery or gel cell if you want to keep it simple and safe. On Jul 29, 2013, at 10:46 AM, aseem wadhwa wrote: A very quick search turned up this: http://www.powerstream.com/PST-MP3500-I.htm Switchable output levels. -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Portable battery for USRPs
At work, we use a 12V motorbike lead battery with a cigarette lighter plug and an off-the-shelf dc/dc converter. As of late, someone has designed a small case with a switch on top, housing a cheap downconverter (linear I guess). Works for hours and hours and hours... On 07/29/2013 07:46 PM, aseem wadhwa wrote: Hi! I have to do a few outdoor experiments with USRPs. Hence I'm looking for portable batteries that can be used for this purpose. After searching a bit, the best option that seems to me is to use 12V heavy duty lantern battery followed by a 12V to 110V DC to AC inverter, which can then be used for the USRP adapter. The combined assembly is still a bit heavy for me. Is there any other better (lighter) option ? Are there any batteries specifically designed to be used with USRPs ? Thanks in advance. regards, Aseem -- Aseem Wadhwa Graduate Student Electrical & Computer Engineering University of California Santa Barbara ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
