Aaron Carroll <xaar...@gmail.com> writes: > 2009/10/20 Aaron Carroll <xaar...@gmail.com>: >> Based on the heating I've noted in L1704, I've ordered some low-R >> inductors to see if that has much effect. > > I replaced L1704 with a TDK VLF3012AT @ 2.2uH (data sheet: > http://www.tdk.co.jp/tefe02/e531_vlf3012a.pdf) and repeated the > experiments. With this new part the efficiency of the conversion > jumped to 80% :-)
Just "wow" :) Seriously, Aaron, great thanks for your investigation and persistence. The result is something we all can learn from: 1. Don't be as insane as (some) TPE EEs ;) 2. When choosing a part think of what purpose you're going to employ it for. :D -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com _______________________________________________ hardware mailing list hardware@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/hardware