Backlight Power Measurement

Paul Fertser fercerpav at
Wed Oct 28 18:49:55 CET 2009

Werner Almesberger <werner at> writes:
> Aaron Carroll wrote:
>> I replaced L1704 with a TDK VLF3012AT @ 2.2uH (data sheet:
>> and repeated the
>> experiments.  With this new part the efficiency of the conversion
>> jumped to 80%  :-)
> Wow ! Impressive result, congratuilations !
> There are quite a lot of these Subaru inductors in GTA02. I wonder
> how many more silent contributors to global warming of this kind
> we have, e.g., IO_3V3 or USB power.
> Has anyone been able to locate a data sheet for the Subaru parts
> so that one could see if the specifications give any hint ?

Even my friend who lives in Japan atm and knows japanese wasn't able
to :(

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