PF manual does not list typical power consumption. Because PowerFlarm
can supply power to other devices, this is a variable figure. The
manual says only "up to 1.2 Watts", or 1 amp at 12V. That's rather a
lot, so I decided to check. My PF brick is connected to a Butterfly
57mm flarm panel display and ClearNav (via serial port). I measure
170 mA at 12.4 VDC, which is reassuringly small.

-Evan Ludeman / T8

On Sunday, July 15, 2012 1:48:25 PM UTC-7, Evan Ludeman wrote:
> PF manual does not list typical power consumption. Because PowerFlarm
> can supply power to other devices, this is a variable figure. The
> manual says only "up to 1.2 Watts", or 1 amp at 12V.

That would be 100mA at 12V.

Bart

On Sunday, July 15, 2012 1:55:51 PM UTC-7, wrote:
> On Sunday, July 15, 2012 1:48:25 PM UTC-7, Evan Ludeman wrote:
> > PF manual does not list typical power consumption. Because PowerFlarm
> > can supply power to other devices, this is a variable figure. The
> > manual says only "up to 1.2 Watts", or 1 amp at 12V.
>
> That would be 100mA at 12V.
>
> Bart

Did you make independent measurements?, Based on the quoted measurement and assuming ideal power behavior it would be ~165mA at 12.0 VDC.

Actual power consumption will depend to some extent on the environment (e.g. other equipped gliders nearby etc.).

Darryl

On Jul 15, 2:07*pm, Darryl Ramm > wrote:
> > > can supply power to other devices, this is a variable figure. *The
> > > manual says only "up to 1.2 Watts", or 1 amp at 12V.
> > That would be 100mA at 12V.
> Did you make independent measurements?, Based on the quoted measurement and assuming ideal power behavior it would be ~165mA at 12.0 VDC.

Me? I have not measured anything. I only stated that 1.2W at 12V
requires current draw of 100mA, not 1A.

Bart

On Jul 15, 4:55*pm, wrote:
> On Sunday, July 15, 2012 1:48:25 PM UTC-7, Evan Ludeman wrote:
> > PF manual does not list typical power consumption. *Because PowerFlarm
> > can supply power to other devices, this is a variable figure. *The
> > manual says only "up to 1.2 Watts", or 1 amp at 12V.
>
> That would be 100mA at 12V.
>
> Bart

You're right, of course.

I got busy reading about a few hundred milliamps for this in, 500 for
that (at +3 or +5V, not 12) and slipped the decimal. Oops.

In any case, 170 mA is a pretty good measurement. That's sitting in
my driveway with GPS and flarm transmission active, no threats.

-Evan / T8