MrWizard wrote:
its a 'data' cellphone, your looking at power in the 1 watt or less and NO battery,
some users run this off a 500ma 5v usb port, stepped up to 12v
thats 2.5 watts max power from the USB, so it is using less than that
my best guess your looking a possible 150-200ma on 12v MAX, and likely less
no battery to charge, but you want a GOOD Filtered supply, with NO AC ripple in the 12v output
something that holds voltage DOWN even if very small load
a switching supply, not a device specific load specific supply
i choose to buy one for $35 + shipping, although i could have built it, if i ordered a OBD2 plug
Amazon has a number of switching power supplys used in CCTV applications.
Here is an example. Is this what you are describing?
