From: Dave Hylands <dhylands@gm...> - 2006-03-07 21:55:24
Somebody posted this on another list, and I thought it was worthwhile
sharing. The original post mentioned that Jameco carries a 12v to
adjustable-out 15A DC-DC converter for $17
The same thing is available from DigiKey (search for 393-1141-ND) for $15.7=
I also discovered that TI has an eval board for one of their new DC-DC
converters, the TPS5430. TI is selling the eval board $10, which has
an input range of 10.8v to 19.8v, and generates 5v out @ 3A (The
TPS5430 has a wider input range, the 10.8 to 19.8 is for the eval
board with the component selection that they used).
I've ordered some of the TI eval boards, but they seem to be
backordered. I'll also be ordering a couple of the SIL15 boards from
DigiKey on my next order.
Both of these seem to ideal if you're using a 12v battery for your robot.
Vancouver, BC, Canada
From: Keith Olson <ksoftconsulting@gm...> - 2006-03-19 19:49:27
Craig Hughes wrote:
> On Mar 7, 2006, at 1:55 PM, Dave Hylands wrote:
>> Both of these seem to ideal if you're using a 12v battery for your
> Or building a gumstix-based system into a car!
One of the problems with auto installs is the 'dirty' power available.
That's why they came out with startup / shutdown controllers
(http://www.dashwerks.com/dw_dssc.php) One thing that occurs to me is
that if you add a 'UPS' supply (i.e. 12V -> charger -> battery ->
device), you can /guarantee/ constant, clean power.