10 May
2011
10 May
'11
9:57 a.m.
then it would be 4xAAA/AA (3xAA will only work if fully charged)
the other idea would be :
0.7-4.5 --- VREG 5V --->|----+
|
+--- VREG 3.3V
|
USB 5V ---------------->|----+
or another nice idea (like the arduino does for the 5v) :
BATT --- VREG 3.3V ---+
|
FDN304 -- 3.3V
|
VUSB --- VREG 3.3V ---+
as you wish,
Kevin
On 09.05.2011 21:18, Philipp Fabian Benedikt Maier wrote:
Hi!
Or maybe you could do this:
3xMigon ----->|------+ +--------+
| | |
+----------+ 3,3V +--------
| | Reg. |
USB 5V ----->|------+ +---+----+
|
_|_
Simple, but effective ;-) And you need only one regulator.
regards.
Philipp