On Tue, 12 Mar 2013, Toby Corkindale <[email protected]> wrote: > Seconded. I have had a nightmare month or two of failing USB cables, and > new cables which can't actually push full power through themselves. > I suspect this is partly because I went around upgrading my USB power > sources from 500-1000 mA to 1000-2000 mA units, which is well above the > original USB spec.. but yet now quite common for charging phones and > driving embedded boards. > > I'm currently having some success with 30cm micro-usb cables from Korea > that seem to work fine. I also have some $10 cables from Jaycar which > are annoyingly long (1.8m) but which otherwise seem to be built well > enough to carry power.
http://etbe.coker.com.au/2013/01/24/power-supplies-wires/ I've done some calculations about the resistance of wires for USB chargers. I had to make some assumptions about the thickness of the conductors in the cables, but anyone who's interested can make their own calculations with different assumptions. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/ _______________________________________________ luv-main mailing list [email protected] http://lists.luv.asn.au/listinfo/luv-main
