Backlight Power Measurement

[Paul Fertser]

Aaron Carroll <xaaronc at gmail.com> writes:
> 2009/10/20 Aaron Carroll <xaaronc at 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

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