Consider the instantaneous peak current demands which would be created when the
camera has a full buffer + post processing running + writing to a Microdrive +
recharging the flash circuitry with display back-lighting on, 3A max doesn't
sound like such overkill.
True... but that's why it's so hard on batteries then.
The flash recharge is particularly telling. That's running close to the
1C rate on the batteries, so they're only ~60% efficient. Since the
official supply is switching, it'll have to be designed more or less to
peak, whereas a linear supply can probably get away with a high power
transient.
No need really:
http://www.imaging-resource.com/PRODS/ISTD/ISTDA11.HTM
Good to know. I have the -DS, but it's probably close.
-Cory
*************************************************************************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
*************************************************************************
