Re: microcontroller circuit help

Thanks for the input guys. Just to clarify a bit, the chip has two
inputs, the wall and the battery, and its supposed to output 12vdc. I
gave this a shot just now:
Output
^
|
------------------------------------
^ ^
Battery Transformer>12vdc
| |
| |
Charger |
|-----------------------------------
^
AC
With this setup, the smart charger outputs 15V instead of the battery
giving out 12 vdc. I dont know if the charger is at fault here. To get
around this, I thought of putting a chip between the output and the
whole block, which in case of AC being connected will just charge the
battery and power it through the transformer. WIth no AC, the battery
will supply the juice until its voltage drops to a a set point after
which the power is shut off completely. Thats why I was thinking of a
microcontroller to do this with.|

lain wrote:
Oops! I just noticed you wanted 12V out of it.. in that case, you could
try doing the same thing without the inverter! Your 12V circuit will
get power from the car battery when the charger isn't getting power,
and it'll power from the charger otherwise.

- Eric A.


.

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