Hello,
The circuit requires regulated 12V DC but must be either mains or DC (for
want of a better word) "powerable".
Instead of having two separate connections (one for mains and another for
DC) i want both on the same connection!.
I.e. you can stick mains or DC in the same socket and the instrument wont
mind!.
-----Original Message-----
Sent: 18 December 2003 10:29
To: Multiple recipients of list CHIPDIR-L
On Thu, Dec 18, 2003 at 01:54:20AM -0800, Darren Logan enlightened us
thusly
> Hello,
>
> Does anybody have any idea how one can go about designing a power
> supply which can run from AC mains or DC - automatically switching
> itself for either input. For example 90-260V AC and 8 to 24V DC
> (output 12V, 1A)?
>
> I guess there will be some kind of front end detection circuit (of AC
> or DC) which controls how the input is converted.
Clarify exactly what you are up to.
Are you switching power sources for a low voltage circuit, or doing a
step down/step up smps?
Are you connecting mains and battery to the same pine (Joe public will
love that!)
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
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--
Author: Darren Logan
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